fstests: add fsstress + compaction test

Message ID	20240418001356.95857-1-mcgrof@kernel.org (mailing list archive)
State	New
Headers	show Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F0C6181; Thu, 18 Apr 2024 00:13:58 +0000 (UTC) From: Luis Chamberlain <mcgrof@kernel.org> To: fstests@vger.kernel.org Cc: kdevops@lists.linux.dev, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, willy@infradead.org, david@redhat.com, linmiaohe@huawei.com, muchun.song@linux.dev, osalvador@suse.de, Luis Chamberlain <mcgrof@kernel.org> Subject: [PATCH] fstests: add fsstress + compaction test Date: Wed, 17 Apr 2024 17:13:56 -0700 Message-ID: <20240418001356.95857-1-mcgrof@kernel.org> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: Luis Chamberlain <mcgrof@infradead.org>
Series	fstests: add fsstress + compaction test \| expand fstests: add fsstress + compaction test

Luis Chamberlain April 18, 2024, 12:13 a.m. UTC

Running compaction while we run fsstress can crash older kernels as per
korg#218227 [0], the fix for that [0] has been posted [1] but that patch
is not yet on v6.9-rc4 and the patch requires changes for v6.9.

Today I find that v6.9-rc4 is also hitting an unrecoverable hung task
between compaction and fsstress while running generic/476 on the
following kdevops test sections [2]:

  * xfs_nocrc
  * xfs_nocrc_2k
  * xfs_nocrc_4k

Analyzing the trace I see the guest uses loopback block devices for the
fstests TEST_DEV, the loopback file uses sparsefiles on a btrfs
partition. The contention based on traces [3] [4] seems to be that we
have somehow have fsstress + compaction race on folio_wait_bit_common().

We have this happening:

  a) kthread compaction --> migrate_pages_batch()
                --> folio_wait_bit_common()
  b) workqueue on btrfs writeback wb_workfn  --> extent_write_cache_pages()
                --> folio_wait_bit_common()
  c) workqueue on loopback loop_rootcg_workfn() --> filemap_fdatawrite_wbc()
                --> folio_wait_bit_common()
  d) kthread xfsaild --> blk_mq_submit_bio() --> wbt_wait()

I tried to reproduce but couldn't easily do so, so I wrote this test
to help, and with this I have 100% failure rate so far out of 2 runs.

Given we also have korg#218227 and that patch likely needing
backporting, folks will want a reproducer for this issue. This should
hopefully help with that case and this new separate issue.

To reproduce with kdevops just:

make defconfig-xfs_nocrc_2k  -j $(nproc)
make -j $(nproc)
make fstests
make linux
make fstests-baseline TESTS=generic/733
tail -f guestfs/*-xfs-nocrc-2k/console.log

[0] https://bugzilla.kernel.org/show_bug.cgi?id=218227
[1] https://lore.kernel.org/all/7ee2bb8c-441a-418b-ba3a-d305f69d31c8@suse.cz/T/#u
[2] https://github.com/linux-kdevops/kdevops/blob/main/playbooks/roles/fstests/templates/xfs/xfs.config
[3] https://gist.github.com/mcgrof/4dfa3264f513ce6ca398414326cfab84
[4] https://gist.github.com/mcgrof/f40a9f31a43793dac928ce287cfacfeb

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---

Note: kdevops uses its own fork of fstests which has this merged
already, so the above should just work. If it's your first time using
kdevops be sure to just read the README for the first time users:

https://github.com/linux-kdevops/kdevops/blob/main/docs/kdevops-first-run.md

 common/rc             |  7 ++++++
 tests/generic/744     | 56 +++++++++++++++++++++++++++++++++++++++++++
 tests/generic/744.out |  2 ++
 3 files changed, 65 insertions(+)
 create mode 100755 tests/generic/744
 create mode 100644 tests/generic/744.out

Matthew Wilcox April 18, 2024, 1:39 a.m. UTC | #1

On Wed, Apr 17, 2024 at 05:13:56PM -0700, Luis Chamberlain wrote:
> Running compaction while we run fsstress can crash older kernels as per
> korg#218227 [0], the fix for that [0] has been posted [1] but that patch
> is not yet on v6.9-rc4 and the patch requires changes for v6.9.

It doesn't require changes, it just has prerequisites:

https://lore.kernel.org/all/ZgHhcojXc9QjynUI@casper.infradead.org/

> Today I find that v6.9-rc4 is also hitting an unrecoverable hung task
> between compaction and fsstress while running generic/476 on the
> following kdevops test sections [2]:
> 
>   * xfs_nocrc
>   * xfs_nocrc_2k
>   * xfs_nocrc_4k
> 
> Analyzing the trace I see the guest uses loopback block devices for the
> fstests TEST_DEV, the loopback file uses sparsefiles on a btrfs
> partition. The contention based on traces [3] [4] seems to be that we
> have somehow have fsstress + compaction race on folio_wait_bit_common().

What do you mean by "race"?  Here's what I see:

Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task kcompactd0:72 blocked for more than 120 seconds.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:kcompactd0      state:D stack:0     pid:72    tgid:72    ppid:2      flags:0x00004000
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  __schedule+0x3d9/0xaf0
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  schedule+0x26/0xf0
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  io_schedule+0x42/0x70
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  folio_wait_bit_common+0x123/0x370
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  ? __pfx_wake_page_function+0x10/0x10
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  migrate_pages_batch+0x69a/0xd70

But you didn't run the backtrace through scripts/decode_stacktrace.sh
so I can't figure out what we're waiting on.

> We have this happening:
> 
>   a) kthread compaction --> migrate_pages_batch()
>                 --> folio_wait_bit_common()
>   b) workqueue on btrfs writeback wb_workfn  --> extent_write_cache_pages()
>                 --> folio_wait_bit_common()
>   c) workqueue on loopback loop_rootcg_workfn() --> filemap_fdatawrite_wbc()
>                 --> folio_wait_bit_common()
>   d) kthread xfsaild --> blk_mq_submit_bio() --> wbt_wait()
> 
> I tried to reproduce but couldn't easily do so, so I wrote this test
> to help, and with this I have 100% failure rate so far out of 2 runs.
> 
> Given we also have korg#218227 and that patch likely needing
> backporting, folks will want a reproducer for this issue. This should
> hopefully help with that case and this new separate issue.
> 
> To reproduce with kdevops just:
> 
> make defconfig-xfs_nocrc_2k  -j $(nproc)
> make -j $(nproc)
> make fstests
> make linux
> make fstests-baseline TESTS=generic/733
> tail -f guestfs/*-xfs-nocrc-2k/console.log
> 
> [0] https://bugzilla.kernel.org/show_bug.cgi?id=218227
> [1] https://lore.kernel.org/all/7ee2bb8c-441a-418b-ba3a-d305f69d31c8@suse.cz/T/#u
> [2] https://github.com/linux-kdevops/kdevops/blob/main/playbooks/roles/fstests/templates/xfs/xfs.config
> [3] https://gist.github.com/mcgrof/4dfa3264f513ce6ca398414326cfab84
> [4] https://gist.github.com/mcgrof/f40a9f31a43793dac928ce287cfacfeb
> 
> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
> ---
> 
> Note: kdevops uses its own fork of fstests which has this merged
> already, so the above should just work. If it's your first time using
> kdevops be sure to just read the README for the first time users:
> 
> https://github.com/linux-kdevops/kdevops/blob/main/docs/kdevops-first-run.md
> 
>  common/rc             |  7 ++++++
>  tests/generic/744     | 56 +++++++++++++++++++++++++++++++++++++++++++
>  tests/generic/744.out |  2 ++
>  3 files changed, 65 insertions(+)
>  create mode 100755 tests/generic/744
>  create mode 100644 tests/generic/744.out
> 
> diff --git a/common/rc b/common/rc
> index b7b77ac1b46d..d4432f5ce259 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -120,6 +120,13 @@ _require_hugepages()
>  		_notrun "Kernel does not report huge page size"
>  }
>  
> +# Requires CONFIG_COMPACTION
> +_require_compaction()
> +{
> +	if [ ! -f /proc/sys/vm/compact_memory ]; then
> +	    _notrun "Need compaction enabled CONFIG_COMPACTION=y"
> +	fi
> +}
>  # Get hugepagesize in bytes
>  _get_hugepagesize()
>  {
> diff --git a/tests/generic/744 b/tests/generic/744
> new file mode 100755
> index 000000000000..2b3c0c7e92fb
> --- /dev/null
> +++ b/tests/generic/744
> @@ -0,0 +1,56 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2024 Luis Chamberlain.  All Rights Reserved.
> +#
> +# FS QA Test 744
> +#
> +# fsstress + compaction test
> +#
> +. ./common/preamble
> +_begin_fstest auto rw long_rw stress soak smoketest
> +
> +_cleanup()
> +{
> +	cd /
> +	rm -f $tmp.*
> +	$KILLALL_PROG -9 fsstress > /dev/null 2>&1
> +}
> +
> +# Import common functions.
> +
> +# real QA test starts here
> +
> +# Modify as appropriate.
> +_supported_fs generic
> +
> +_require_scratch
> +_require_compaction
> +_require_command "$KILLALL_PROG" "killall"
> +
> +echo "Silence is golden."
> +
> +_scratch_mkfs > $seqres.full 2>&1
> +_scratch_mount >> $seqres.full 2>&1
> +
> +nr_cpus=$((LOAD_FACTOR * 4))
> +nr_ops=$((25000 * nr_cpus * TIME_FACTOR))
> +fsstress_args=(-w -d $SCRATCH_MNT -n $nr_ops -p $nr_cpus)
> +
> +# start a background getxattr loop for the existing xattr
> +runfile="$tmp.getfattr"
> +touch $runfile
> +while [ -e $runfile ]; do
> +	echo 1 > /proc/sys/vm/compact_memory
> +	sleep 15
> +done &
> +getfattr_pid=$!
> +
> +test -n "$SOAK_DURATION" && fsstress_args+=(--duration="$SOAK_DURATION")
> +
> +$FSSTRESS_PROG $FSSTRESS_AVOID "${fsstress_args[@]}" >> $seqres.full
> +
> +rm -f $runfile
> +wait > /dev/null 2>&1
> +
> +status=0
> +exit
> diff --git a/tests/generic/744.out b/tests/generic/744.out
> new file mode 100644
> index 000000000000..205c684fa995
> --- /dev/null
> +++ b/tests/generic/744.out
> @@ -0,0 +1,2 @@
> +QA output created by 744
> +Silence is golden
> -- 
> 2.43.0
>

Luis Chamberlain April 18, 2024, 6:42 a.m. UTC | #2

On Thu, Apr 18, 2024 at 02:39:19AM +0100, Matthew Wilcox wrote:
> On Wed, Apr 17, 2024 at 05:13:56PM -0700, Luis Chamberlain wrote:
> > Running compaction while we run fsstress can crash older kernels as per
> > korg#218227 [0], the fix for that [0] has been posted [1] but that patch
> > is not yet on v6.9-rc4 and the patch requires changes for v6.9.
> 
> It doesn't require changes, it just has prerequisites:
> 
> https://lore.kernel.org/all/ZgHhcojXc9QjynUI@casper.infradead.org/

Oh alrighty, thanks I'll give those two a shot to see if that fixes
this other lockup.

> > Today I find that v6.9-rc4 is also hitting an unrecoverable hung task
> > between compaction and fsstress while running generic/476 on the
> > following kdevops test sections [2]:
> > 
> >   * xfs_nocrc
> >   * xfs_nocrc_2k
> >   * xfs_nocrc_4k
> > 
> > Analyzing the trace I see the guest uses loopback block devices for the
> > fstests TEST_DEV, the loopback file uses sparsefiles on a btrfs
> > partition. The contention based on traces [3] [4] seems to be that we
> > have somehow have fsstress + compaction race on folio_wait_bit_common().
> 
> What do you mean by "race"?  Here's what I see:
> 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task kcompactd0:72 blocked for more than 120 seconds.
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:kcompactd0      state:D stack:0     pid:72    tgid:72    ppid:2      flags:0x00004000
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  __schedule+0x3d9/0xaf0
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  schedule+0x26/0xf0
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  io_schedule+0x42/0x70
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  folio_wait_bit_common+0x123/0x370
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  ? __pfx_wake_page_function+0x10/0x10
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  migrate_pages_batch+0x69a/0xd70
> 
> But you didn't run the backtrace through scripts/decode_stacktrace.sh
> so I can't figure out what we're waiting on.

Oh, lemme do that. OK here's the full log and at the end of this email
is just the relevant traces.

https://gist.github.com/mcgrof/5e2886a33fd9448e1033acfbe244e82f

Apr 16 21:45:28 base-xfs-nocrc-2k unknown: run fstests generic/476 at 2024-04-16 21:45:28
Apr 16 21:45:29 base-xfs-nocrc-2k kernel: XFS (loop16): Mounting V4 Filesystem 2edc77d4-f00a-40d8-9d7f-b1e3876a156e
Apr 16 21:45:29 base-xfs-nocrc-2k kernel: XFS (loop16): Ending clean mount
Apr 16 21:45:29 base-xfs-nocrc-2k kernel: xfs filesystem being mounted at /media/test supports timestamps until 2038-01-19 (0x7fffffff)
Apr 16 21:45:29 base-xfs-nocrc-2k kernel: XFS (loop5): Mounting V4 Filesystem c13935a8-e0a2-491f-a58f-ed56430999dc
Apr 16 21:45:29 base-xfs-nocrc-2k kernel: XFS (loop5): Ending clean mount
Apr 16 21:45:29 base-xfs-nocrc-2k kernel: xfs filesystem being mounted at /media/scratch supports timestamps until 2038-01-19 (0x7fffffff)
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task kcompactd0:72 blocked for more than 120 seconds.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:kcompactd0      state:D stack:0     pid:72    tgid:72    ppid:2      flags:0x00004000
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: migrate_pages_batch (./include/linux/pagemap.h:1048 mm/migrate.c:1486 mm/migrate.c:1700) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_free (mm/compaction.c:1907) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_alloc (mm/compaction.c:1855) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __mod_node_page_state (mm/vmstat.c:403 (discriminator 2)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: migrate_pages (mm/migrate.c:1849 mm/migrate.c:1953) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_alloc (mm/compaction.c:1855) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_free (mm/compaction.c:1907) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? folio_putback_lru (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/page_ref.h:67 ./include/linux/mm.h:1134 ./include/linux/mm.h:1140 ./include/linux/mm.h:1505 mm/vmscan.c:819) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: compact_zone (mm/compaction.c:2663) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? update_load_avg (kernel/sched/fair.c:4411 kernel/sched/fair.c:4748) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: compact_node (mm/compaction.c:2925) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: kcompactd (./include/linux/mmzone.h:1501 mm/compaction.c:2257 mm/compaction.c:3222) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kcompactd (mm/compaction.c:3168) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task kworker/u38:8:807213 blocked for more than 120 seconds.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:kworker/u38:8   state:D stack:0     pid:807213 tgid:807213 ppid:2      flags:0x00004000
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Workqueue: writeback wb_workfn (flush-btrfs-2)
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: extent_write_cache_pages (fs/btrfs/extent_io.c:2130) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) kernel/sched/core.c:5852 (discriminator 1) kernel/sched/core.c:5849 (discriminator 1) kernel/sched/core.c:5877 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? stack_depot_save_flags (lib/stackdepot.c:609) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? put_cpu_partial (./arch/x86/include/asm/irqflags.h:134 (discriminator 1) mm/slub.c:2978 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: extent_writepages (fs/btrfs/extent_io.c:131 fs/btrfs/extent_io.c:2275) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: do_writepages (mm/page-writeback.c:2612) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:9896 (discriminator 2) kernel/sched/fair.c:10577 (discriminator 2)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __writeback_single_inode (fs/fs-writeback.c:1659) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? _raw_spin_lock (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:134 (discriminator 4) kernel/locking/spinlock.c:154 (discriminator 4)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: writeback_sb_inodes (fs/fs-writeback.c:1943) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __writeback_inodes_wb (fs/fs-writeback.c:2013) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: wb_writeback (fs/fs-writeback.c:2119) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: wb_workfn (fs/fs-writeback.c:2276 (discriminator 1) fs/fs-writeback.c:2304 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task kworker/u34:9:1268436 blocked for more than 120 seconds.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:kworker/u34:9   state:D stack:0     pid:1268436 tgid:1268436 ppid:2      flags:0x00004000
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Workqueue: loop5 loop_rootcg_workfn [loop]
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: btrfs_folio_start_writer_lock (./include/linux/pagemap.h:1048 fs/btrfs/subpage.c:394) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: lock_delalloc_pages (fs/btrfs/extent_io.c:281 (discriminator 1)) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:143 (discriminator 3) kernel/locking/spinlock.c:186 (discriminator 3)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? btrfs_find_delalloc_range (fs/btrfs/extent-io-tree.c:1036) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: find_lock_delalloc_range (fs/btrfs/extent_io.c:377) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: writepage_delalloc (fs/btrfs/extent_io.c:1217 (discriminator 1)) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: extent_write_cache_pages (fs/btrfs/extent_io.c:1475 (discriminator 1) fs/btrfs/extent_io.c:2152 (discriminator 1)) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: extent_writepages (fs/btrfs/extent_io.c:131 fs/btrfs/extent_io.c:2275) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_end_bbio_data_write (fs/btrfs/extent_io.c:463) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: do_writepages (mm/page-writeback.c:2612) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pv_queued_spin_lock_slowpath (kernel/locking/qspinlock.c:565 (discriminator 38)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pv_queued_spin_lock_slowpath (kernel/locking/qspinlock.c:565 (discriminator 38)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: filemap_fdatawrite_wbc (mm/filemap.c:398 mm/filemap.c:387) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __filemap_fdatawrite_range (mm/filemap.c:431) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: start_ordered_ops.constprop.0 (fs/btrfs/file.c:3873 fs/btrfs/file.c:1743) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: btrfs_sync_file (fs/btrfs/file.c:1818) btrfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: loop_process_work (drivers/block/loop.c:329 (discriminator 1) drivers/block/loop.c:475 (discriminator 1) drivers/block/loop.c:1907 (discriminator 1) drivers/block/loop.c:1942 (discriminator 1)) loop
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? _raw_spin_lock_irqsave (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:111 (discriminator 4) kernel/locking/spinlock.c:162 (discriminator 4)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task xfsaild/loop5:1377891 blocked for more than 120 seconds.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:xfsaild/loop5   state:D stack:0     pid:1377891 tgid:1377891 ppid:2      flags:0x00004000
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_wbt_cleanup_cb (block/blk-wbt.c:575) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_wbt_inflight_cb (block/blk-wbt.c:569) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: rq_qos_wait (block/blk-rq-qos.c:284 (discriminator 4)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_rq_qos_wake_function (block/blk-rq-qos.c:208) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_wbt_inflight_cb (block/blk-wbt.c:569) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: wbt_wait (block/blk-wbt.c:660) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __rq_qos_throttle (block/blk-rq-qos.c:66) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: blk_mq_submit_bio (block/blk-mq.c:2880 block/blk-mq.c:2984) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: submit_bio_noacct_nocheck (./include/linux/bio.h:639 block/blk-core.c:701 block/blk-core.c:729) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? submit_bio_noacct (block/blk-core.c:758 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: _xfs_buf_ioapply (fs/xfs/xfs_buf.c:1584 fs/xfs/xfs_buf.c:1671) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_dir_ino_validate (fs/xfs/libxfs/xfs_dir2.c:220 (discriminator 2)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __xfs_buf_submit (./arch/x86/include/asm/atomic.h:67 ./include/linux/atomic/atomic-arch-fallback.h:2278 ./include/linux/atomic/atomic-instrumented.h:1384 fs/xfs/xfs_buf.c:1762) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_delwri_submit_buffers (fs/xfs/xfs_buf.c:2280 (discriminator 2)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfsaild (fs/xfs/xfs_trans_ail.c:560 (discriminator 1) fs/xfs/xfs_trans_ail.c:671 (discriminator 1)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? _raw_spin_lock_irqsave (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:111 (discriminator 4) kernel/locking/spinlock.c:162 (discriminator 4)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_xfsaild (fs/xfs/xfs_trans_ail.c:597) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task fsstress:1377894 blocked for more than 120 seconds.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:fsstress        state:D stack:0     pid:1377894 tgid:1377894 ppid:1377892 flags:0x00004002
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule_timeout (kernel/time/timer.c:2559) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? blk_finish_plug (block/blk-core.c:1218 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2544) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_iowait (fs/xfs/xfs_buf.c:1691) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __xfs_buf_submit (fs/xfs/xfs_buf.c:1770) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_read_map (fs/xfs/xfs_buf.c:870) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_btree_read_buf_block (./fs/xfs/xfs_trans.h:210 fs/xfs/libxfs/xfs_btree.c:1432) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_trans_read_buf_map (fs/xfs/xfs_trans_buf.c:289 (discriminator 1)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_btree_read_buf_block (./fs/xfs/xfs_trans.h:210 fs/xfs/libxfs/xfs_btree.c:1432) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_btree_read_buf_block (./fs/xfs/xfs_trans.h:210 fs/xfs/libxfs/xfs_btree.c:1432) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_btree_lookup_get_block (fs/xfs/libxfs/xfs_btree.c:1934) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_btree_lookup (fs/xfs/libxfs/xfs_btree.c:2045) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? kmem_cache_alloc (./include/linux/kmemleak.h:42 mm/slub.c:3802 mm/slub.c:3845 mm/slub.c:3852) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_bunmapi (fs/xfs/libxfs/xfs_bmap.c:5671) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_free_file_space (fs/xfs/xfs_bmap_util.c:786 fs/xfs/xfs_bmap_util.c:856) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_file_fallocate (fs/xfs/xfs_file.c:1004 (discriminator 1)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? vfs_fallocate (fs/open.c:330) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_bmap_del_extent_real (fs/xfs/libxfs/xfs_bmap.c:5173) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __xfs_bunmapi (fs/xfs/libxfs/xfs_bmap.c:5593) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_trans_alloc_inode (fs/xfs/xfs_trans.c:1220) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_bunmapi (fs/xfs/libxfs/xfs_bmap.c:5671) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_free_file_space (fs/xfs/xfs_bmap_util.c:786 fs/xfs/xfs_bmap_util.c:856) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_file_fallocate (fs/xfs/xfs_file.c:1004 (discriminator 1)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? apparmor_file_permission (security/apparmor/include/cred.h:24 security/apparmor/include/cred.h:49 security/apparmor/include/cred.h:76 security/apparmor/include/cred.h:109 security/apparmor/lsm.c:533 security/apparmor/lsm.c:546) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: vfs_fallocate (fs/open.c:330) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ioctl_preallocate (fs/ioctl.c:293) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __x64_sys_ioctl (fs/ioctl.c:903 fs/ioctl.c:890 fs/ioctl.c:890) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RIP: 0033:0x7f4c8f5a2c5b
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RSP: 002b:00007ffd503d7980 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RAX: ffffffffffffffda RBX: 00000000000d3809 RCX: 00007f4c8f5a2c5b
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RDX: 00007ffd503d7a00 RSI: 000000004030582b RDI: 0000000000000003
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RBP: 0000000000000003 R08: 000000000000004f R09: 00007ffd503d79ec
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000000
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: R13: 000000000026acd9 R14: 8f5c28f5c28f5c29 R15: 0000558585e10990
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task fsstress:1377895 blocked for more than 120 seconds.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: task:fsstress        state:D stack:0     pid:1377895 tgid:1377895 ppid:1377892 flags:0x00000002
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: schedule_timeout (kernel/time/timer.c:2559) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? blk_finish_plug (block/blk-core.c:1218 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2544) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_iowait (fs/xfs/xfs_buf.c:1691) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __xfs_buf_submit (fs/xfs/xfs_buf.c:1770) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_read_map (fs/xfs/xfs_buf.c:870) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_da_read_buf (fs/xfs/libxfs/xfs_da_btree.c:2676) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_trans_read_buf_map (fs/xfs/xfs_trans_buf.c:289 (discriminator 1)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_da_read_buf (fs/xfs/libxfs/xfs_da_btree.c:2676) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_da_read_buf (fs/xfs/libxfs/xfs_da_btree.c:2676) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr3_leaf_read (fs/xfs/libxfs/xfs_attr_leaf.c:458) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_attr_is_leaf (fs/xfs/libxfs/xfs_attr.c:95) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr_leaf_hasname (fs/xfs/libxfs/xfs_attr.c:1206) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr_leaf_get (fs/xfs/libxfs/xfs_attr.c:1275) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr_get (fs/xfs/libxfs/xfs_attr.c:276) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_xattr_get (fs/xfs/xfs_xattr.c:143) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __vfs_getxattr (fs/xattr.c:423) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: cap_inode_need_killpriv (security/commoncap.c:303) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: security_inode_need_killpriv (security/security.c:2504 (discriminator 13)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: file_remove_privs_flags (fs/inode.c:2016 fs/inode.c:2046) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? xfs_break_dax_layouts (fs/xfs/xfs_file.c:884) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? tomoyo_init_request_info (security/tomoyo/util.c:1026) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? tomoyo_path_number_perm (security/tomoyo/file.c:719 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? aa_file_perm (security/apparmor/file.c:591) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: file_modified (fs/inode.c:2167 fs/inode.c:2196) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_file_fallocate (fs/xfs/xfs_file.c:999 (discriminator 1)) xfs
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ? apparmor_file_permission (security/apparmor/include/cred.h:24 security/apparmor/include/cred.h:49 security/apparmor/include/cred.h:76 security/apparmor/include/cred.h:109 security/apparmor/lsm.c:533 security/apparmor/lsm.c:546) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: vfs_fallocate (fs/open.c:330) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: ioctl_preallocate (fs/ioctl.c:293) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __x64_sys_ioctl (fs/ioctl.c:903 fs/ioctl.c:890 fs/ioctl.c:890) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RIP: 0033:0x7f4c8f5a2c5b
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RSP: 002b:00007ffd503d7980 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RAX: ffffffffffffffda RBX: 00000000000d9386 RCX: 00007f4c8f5a2c5b
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RDX: 00007ffd503d7a00 RSI: 000000004030582a RDI: 0000000000000003
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: RBP: 0000000000000003 R08: 000000000000000f R09: 00007ffd503d79ec
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000000
Apr 16 23:06:11 base-xfs-nocrc-2k kernel: R13: 0000000000049b5f R14: 8f5c28f5c28f5c29 R15: 0000558585e106d0
Apr 16 23:06:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: INFO: task kcompactd0:72 blocked for more than 241 seconds.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: task:kcompactd0      state:D stack:0     pid:72    tgid:72    ppid:2      flags:0x00004000
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: migrate_pages_batch (./include/linux/pagemap.h:1048 mm/migrate.c:1486 mm/migrate.c:1700) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_free (mm/compaction.c:1907) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_alloc (mm/compaction.c:1855) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __mod_node_page_state (mm/vmstat.c:403 (discriminator 2)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: migrate_pages (mm/migrate.c:1849 mm/migrate.c:1953) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_alloc (mm/compaction.c:1855) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_compaction_free (mm/compaction.c:1907) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? folio_putback_lru (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/page_ref.h:67 ./include/linux/mm.h:1134 ./include/linux/mm.h:1140 ./include/linux/mm.h:1505 mm/vmscan.c:819) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: compact_zone (mm/compaction.c:2663) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? update_load_avg (kernel/sched/fair.c:4411 kernel/sched/fair.c:4748) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: compact_node (mm/compaction.c:2925) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: kcompactd (./include/linux/mmzone.h:1501 mm/compaction.c:2257 mm/compaction.c:3222) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kcompactd (mm/compaction.c:3168) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: INFO: task kworker/u38:8:807213 blocked for more than 241 seconds.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: task:kworker/u38:8   state:D stack:0     pid:807213 tgid:807213 ppid:2      flags:0x00004000
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: Workqueue: writeback wb_workfn (flush-btrfs-2)
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: extent_write_cache_pages (fs/btrfs/extent_io.c:2130) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) kernel/sched/core.c:5852 (discriminator 1) kernel/sched/core.c:5849 (discriminator 1) kernel/sched/core.c:5877 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? stack_depot_save_flags (lib/stackdepot.c:609) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? put_cpu_partial (./arch/x86/include/asm/irqflags.h:134 (discriminator 1) mm/slub.c:2978 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: extent_writepages (fs/btrfs/extent_io.c:131 fs/btrfs/extent_io.c:2275) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: do_writepages (mm/page-writeback.c:2612) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:9896 (discriminator 2) kernel/sched/fair.c:10577 (discriminator 2)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __writeback_single_inode (fs/fs-writeback.c:1659) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? _raw_spin_lock (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:134 (discriminator 4) kernel/locking/spinlock.c:154 (discriminator 4)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: writeback_sb_inodes (fs/fs-writeback.c:1943) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __writeback_inodes_wb (fs/fs-writeback.c:2013) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: wb_writeback (fs/fs-writeback.c:2119) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: wb_workfn (fs/fs-writeback.c:2276 (discriminator 1) fs/fs-writeback.c:2304 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: INFO: task kworker/u34:9:1268436 blocked for more than 241 seconds.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: task:kworker/u34:9   state:D stack:0     pid:1268436 tgid:1268436 ppid:2      flags:0x00004000
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: Workqueue: loop5 loop_rootcg_workfn [loop]
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: btrfs_folio_start_writer_lock (./include/linux/pagemap.h:1048 fs/btrfs/subpage.c:394) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: lock_delalloc_pages (fs/btrfs/extent_io.c:281 (discriminator 1)) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:143 (discriminator 3) kernel/locking/spinlock.c:186 (discriminator 3)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? btrfs_find_delalloc_range (fs/btrfs/extent-io-tree.c:1036) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: find_lock_delalloc_range (fs/btrfs/extent_io.c:377) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: writepage_delalloc (fs/btrfs/extent_io.c:1217 (discriminator 1)) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: extent_write_cache_pages (fs/btrfs/extent_io.c:1475 (discriminator 1) fs/btrfs/extent_io.c:2152 (discriminator 1)) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: extent_writepages (fs/btrfs/extent_io.c:131 fs/btrfs/extent_io.c:2275) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_end_bbio_data_write (fs/btrfs/extent_io.c:463) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: do_writepages (mm/page-writeback.c:2612) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pv_queued_spin_lock_slowpath (kernel/locking/qspinlock.c:565 (discriminator 38)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pv_queued_spin_lock_slowpath (kernel/locking/qspinlock.c:565 (discriminator 38)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: filemap_fdatawrite_wbc (mm/filemap.c:398 mm/filemap.c:387) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __filemap_fdatawrite_range (mm/filemap.c:431) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: start_ordered_ops.constprop.0 (fs/btrfs/file.c:3873 fs/btrfs/file.c:1743) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: btrfs_sync_file (fs/btrfs/file.c:1818) btrfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: loop_process_work (drivers/block/loop.c:329 (discriminator 1) drivers/block/loop.c:475 (discriminator 1) drivers/block/loop.c:1907 (discriminator 1) drivers/block/loop.c:1942 (discriminator 1)) loop
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? _raw_spin_lock_irqsave (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:111 (discriminator 4) kernel/locking/spinlock.c:162 (discriminator 4)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: INFO: task xfsaild/loop5:1377891 blocked for more than 241 seconds.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4 #4
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: task:xfsaild/loop5   state:D stack:0     pid:1377891 tgid:1377891 ppid:2      flags:0x00004000
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: Call Trace:
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  <TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_wbt_cleanup_cb (block/blk-wbt.c:575) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_wbt_inflight_cb (block/blk-wbt.c:569) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: rq_qos_wait (block/blk-rq-qos.c:284 (discriminator 4)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_rq_qos_wake_function (block/blk-rq-qos.c:208) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_wbt_inflight_cb (block/blk-wbt.c:569) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: wbt_wait (block/blk-wbt.c:660) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __rq_qos_throttle (block/blk-rq-qos.c:66) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: blk_mq_submit_bio (block/blk-mq.c:2880 block/blk-mq.c:2984) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: submit_bio_noacct_nocheck (./include/linux/bio.h:639 block/blk-core.c:701 block/blk-core.c:729) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? submit_bio_noacct (block/blk-core.c:758 (discriminator 1)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: _xfs_buf_ioapply (fs/xfs/xfs_buf.c:1584 fs/xfs/xfs_buf.c:1671) xfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? xfs_dir_ino_validate (fs/xfs/libxfs/xfs_dir2.c:220 (discriminator 2)) xfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: __xfs_buf_submit (./arch/x86/include/asm/atomic.h:67 ./include/linux/atomic/atomic-arch-fallback.h:2278 ./include/linux/atomic/atomic-instrumented.h:1384 fs/xfs/xfs_buf.c:1762) xfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: xfs_buf_delwri_submit_buffers (fs/xfs/xfs_buf.c:2280 (discriminator 2)) xfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: xfsaild (fs/xfs/xfs_trans_ail.c:560 (discriminator 1) fs/xfs/xfs_trans_ail.c:671 (discriminator 1)) xfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? _raw_spin_lock_irqsave (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:111 (discriminator 4) kernel/locking/spinlock.c:162 (discriminator 4)) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_xfsaild (fs/xfs/xfs_trans_ail.c:597) xfs
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 16 23:08:11 base-xfs-nocrc-2k kernel:  </TASK>
Apr 16 23:08:11 base-xfs-nocrc-2k kernel: Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings

  Luis

Christoph Hellwig April 18, 2024, 6:57 a.m. UTC | #3

On Thu, Apr 18, 2024 at 02:39:19AM +0100, Matthew Wilcox wrote:
> > Running compaction while we run fsstress can crash older kernels as per
> > korg#218227 [0], the fix for that [0] has been posted [1] but that patch
> > is not yet on v6.9-rc4 and the patch requires changes for v6.9.
> 
> It doesn't require changes, it just has prerequisites:
> 
> https://lore.kernel.org/all/ZgHhcojXc9QjynUI@casper.infradead.org/

How can we expedite getting this fix in?

Vlastimil Babka April 18, 2024, 9:19 a.m. UTC | #4

On 4/18/24 08:57, Christoph Hellwig wrote:
> On Thu, Apr 18, 2024 at 02:39:19AM +0100, Matthew Wilcox wrote:
>>> Running compaction while we run fsstress can crash older kernels as per
>>> korg#218227 [0], the fix for that [0] has been posted [1] but that patch
>>> is not yet on v6.9-rc4 and the patch requires changes for v6.9.
>>
>> It doesn't require changes, it just has prerequisites:
>>
>> https://lore.kernel.org/all/ZgHhcojXc9QjynUI@casper.infradead.org/
> 
> How can we expedite getting this fix in?

It means moving patches 2,4,5 from the above (with their fixups) from
mm-unstable to mm-hotfixes-unstable so they are on track to mainline
before 6.9.

A quick local rebase of mm-unstable with reordering said patches to the
front (v6.9-rc4) suggests this is possible without causing conflicts,
and the intermediate result compiles, at least.

Matthew Wilcox April 18, 2024, 1:30 p.m. UTC | #5

On Wed, Apr 17, 2024 at 11:42:28PM -0700, Luis Chamberlain wrote:
> > > Today I find that v6.9-rc4 is also hitting an unrecoverable hung task
> > > between compaction and fsstress while running generic/476 on the
> > > following kdevops test sections [2]:
> > > 
> > >   * xfs_nocrc
> > >   * xfs_nocrc_2k
> > >   * xfs_nocrc_4k
> > > 
> > > Analyzing the trace I see the guest uses loopback block devices for the
> > > fstests TEST_DEV, the loopback file uses sparsefiles on a btrfs
> > > partition. The contention based on traces [3] [4] seems to be that we
> > > have somehow have fsstress + compaction race on folio_wait_bit_common().
> > 
> > What do you mean by "race"?  Here's what I see:
> 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: migrate_pages_batch (./include/linux/pagemap.h:1048 mm/migrate.c:1486 mm/migrate.c:1700) 

That's folio_lock().

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task kworker/u38:8:807213 blocked for more than 120 seconds.
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: extent_write_cache_pages (fs/btrfs/extent_io.c:2130) btrfs

folio_lock().

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task kworker/u34:9:1268436 blocked for more than 120 seconds.
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: btrfs_folio_start_writer_lock (./include/linux/pagemap.h:1048 fs/btrfs/subpage.c:394) btrfs

folio_lock().

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task xfsaild/loop5:1377891 blocked for more than 120 seconds.
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: rq_qos_wait (block/blk-rq-qos.c:284 (discriminator 4)) 

I'm not familiar with this code.

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: wbt_wait (block/blk-wbt.c:660) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __rq_qos_throttle (block/blk-rq-qos.c:66) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: blk_mq_submit_bio (block/blk-mq.c:2880 block/blk-mq.c:2984) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: submit_bio_noacct_nocheck (./include/linux/bio.h:639 block/blk-core.c:701 block/blk-core.c:729) 
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: _xfs_buf_ioapply (fs/xfs/xfs_buf.c:1584 fs/xfs/xfs_buf.c:1671) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __xfs_buf_submit (./arch/x86/include/asm/atomic.h:67 ./include/linux/atomic/atomic-arch-fallback.h:2278 ./include/linux/atomic/atomic-instrumented.h:1384 fs/xfs/xfs_buf.c:1762) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_delwri_submit_buffers (fs/xfs/xfs_buf.c:2280 (discriminator 2)) xfs

... but it's submitting a write.

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfsaild (fs/xfs/xfs_trans_ail.c:560 (discriminator 1) fs/xfs/xfs_trans_ail.c:671 (discriminator 1)) xfs

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task fsstress:1377894 blocked for more than 120 seconds.
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_iowait (fs/xfs/xfs_buf.c:1691) xfs

Waiting for an I/O completion

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __xfs_buf_submit (fs/xfs/xfs_buf.c:1770) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_read_map (fs/xfs/xfs_buf.c:870) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_trans_read_buf_map (fs/xfs/xfs_trans_buf.c:289 (discriminator 1)) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_btree_read_buf_block (./fs/xfs/xfs_trans.h:210 fs/xfs/libxfs/xfs_btree.c:1432) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_btree_lookup_get_block (fs/xfs/libxfs/xfs_btree.c:1934) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_btree_lookup (fs/xfs/libxfs/xfs_btree.c:2045) xfs

but a read, not a write.

> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: INFO: task fsstress:1377895 blocked for more than 120 seconds.
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_iowait (fs/xfs/xfs_buf.c:1691) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: __xfs_buf_submit (fs/xfs/xfs_buf.c:1770) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_buf_read_map (fs/xfs/xfs_buf.c:870) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_trans_read_buf_map (fs/xfs/xfs_trans_buf.c:289 (discriminator 1)) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_da_read_buf (fs/xfs/libxfs/xfs_da_btree.c:2676) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr3_leaf_read (fs/xfs/libxfs/xfs_attr_leaf.c:458) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr_leaf_hasname (fs/xfs/libxfs/xfs_attr.c:1206) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr_leaf_get (fs/xfs/libxfs/xfs_attr.c:1275) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_attr_get (fs/xfs/libxfs/xfs_attr.c:276) xfs
> Apr 16 23:06:11 base-xfs-nocrc-2k kernel: xfs_xattr_get (fs/xfs/xfs_xattr.c:143) xfs

A different read.

I'm not seeing a _race_ here.  I'm seeing tasks _stuck_, but on what?
A missing wakeup?

Andrew Morton April 18, 2024, 6:45 p.m. UTC | #6

On Thu, 18 Apr 2024 11:19:33 +0200 Vlastimil Babka <vbabka@suse.cz> wrote:

> On 4/18/24 08:57, Christoph Hellwig wrote:
> > On Thu, Apr 18, 2024 at 02:39:19AM +0100, Matthew Wilcox wrote:
> >>> Running compaction while we run fsstress can crash older kernels as per
> >>> korg#218227 [0], the fix for that [0] has been posted [1] but that patch
> >>> is not yet on v6.9-rc4 and the patch requires changes for v6.9.
> >>
> >> It doesn't require changes, it just has prerequisites:
> >>
> >> https://lore.kernel.org/all/ZgHhcojXc9QjynUI@casper.infradead.org/
> > 
> > How can we expedite getting this fix in?
> 
> It means moving patches 2,4,5 from the above (with their fixups) from
> mm-unstable to mm-hotfixes-unstable so they are on track to mainline
> before 6.9.
> 
> A quick local rebase of mm-unstable with reordering said patches to the
> front (v6.9-rc4) suggests this is possible without causing conflicts,
> and the intermediate result compiles, at least.

Thanks for the reminder, this fell through cracks.

It indeed appears that I can move

mm-create-folio_flag_false-and-folio_type_ops-macros.patch
mm-support-page_mapcount-on-page_has_type-pages.patch
mm-turn-folio_test_hugetlb-into-a-pagetype.patch
mm-turn-folio_test_hugetlb-into-a-pagetype-fix.patch

without merge or build issues.  I added

Fixes: 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR")
Cc: <stable@vger.kernel.org>

to all patches.

But a question: 9c5ccf2db04b is from August 2023.  Why are we seeing
this issue now?

Matthew Wilcox April 18, 2024, 7:01 p.m. UTC | #7

On Thu, Apr 18, 2024 at 11:45:52AM -0700, Andrew Morton wrote:
> It indeed appears that I can move
> 
> mm-create-folio_flag_false-and-folio_type_ops-macros.patch
> mm-support-page_mapcount-on-page_has_type-pages.patch
> mm-turn-folio_test_hugetlb-into-a-pagetype.patch
> mm-turn-folio_test_hugetlb-into-a-pagetype-fix.patch
> 
> without merge or build issues.  I added
> 
> Fixes: 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR")
> Cc: <stable@vger.kernel.org>
> 
> to all patches.
> 
> But a question: 9c5ccf2db04b is from August 2023.  Why are we seeing
> this issue now?

We saw it earlier, we just didn't know how to fix it.
eg December 2023:
https://lore.kernel.org/all/ZXNhGsX32y19a2Xv@casper.infradead.org/

I think there were earlier reports, but I'm not finding them now.

Vlastimil Babka April 19, 2024, 7:51 a.m. UTC | #8

On 4/18/24 9:01 PM, Matthew Wilcox wrote:
> On Thu, Apr 18, 2024 at 11:45:52AM -0700, Andrew Morton wrote:
>> It indeed appears that I can move
>> 
>> mm-create-folio_flag_false-and-folio_type_ops-macros.patch
>> mm-support-page_mapcount-on-page_has_type-pages.patch
>> mm-turn-folio_test_hugetlb-into-a-pagetype.patch
>> mm-turn-folio_test_hugetlb-into-a-pagetype-fix.patch
>> 
>> without merge or build issues.  I added
>> 
>> Fixes: 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR")
>> Cc: <stable@vger.kernel.org>
>> 
>> to all patches.
>> 
>> But a question: 9c5ccf2db04b is from August 2023.  Why are we seeing
>> this issue now?
> 
> We saw it earlier, we just didn't know how to fix it.
> eg December 2023:
> https://lore.kernel.org/all/ZXNhGsX32y19a2Xv@casper.infradead.org/
> 
> I think there were earlier reports, but I'm not finding them now.

It's a race and needs CONFIG_DEBUG_VM to be visible, which probably makes it
rare. What seems to be new are the stress tests that have more "luck" at
hitting it? Or maybe also the changes towards more high-order folio usage
make it more likely.

Luis Chamberlain April 19, 2024, 5:25 p.m. UTC | #9

On Fri, Apr 19, 2024 at 09:51:35AM +0200, Vlastimil Babka wrote:
> On 4/18/24 9:01 PM, Matthew Wilcox wrote:
> > On Thu, Apr 18, 2024 at 11:45:52AM -0700, Andrew Morton wrote:
> >> It indeed appears that I can move
> >> 
> >> mm-create-folio_flag_false-and-folio_type_ops-macros.patch
> >> mm-support-page_mapcount-on-page_has_type-pages.patch
> >> mm-turn-folio_test_hugetlb-into-a-pagetype.patch
> >> mm-turn-folio_test_hugetlb-into-a-pagetype-fix.patch
> >> 
> >> without merge or build issues.  I added
> >> 
> >> Fixes: 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR")
> >> Cc: <stable@vger.kernel.org>
> >> 
> >> to all patches.
> >> 
> >> But a question: 9c5ccf2db04b is from August 2023.  Why are we seeing
> >> this issue now?
> > 
> > We saw it earlier, we just didn't know how to fix it.
> > eg December 2023:
> > https://lore.kernel.org/all/ZXNhGsX32y19a2Xv@casper.infradead.org/
> > 
> > I think there were earlier reports, but I'm not finding them now.
> 
> It's a race and needs CONFIG_DEBUG_VM to be visible, which probably makes it
> rare.

Sure, but what would be the impact in practice if life chugs on with
the assumtions being incorrect?

> What seems to be new are the stress tests that have more "luck" at
> hitting it?

The fsstress tests are not new, the test in this patch just adds a
background forceful compaction to try to make this easier to reproduce.
Although it is hard to reproduce at least we now have a 100% confidence
way to reproduce new issues as described below. Also I hope that the
automation with kdevops allows anyone to easily ramp up and reproduce
this rather fast too as described in the patch first email.

> Or maybe also the changes towards more high-order folio usage
> make it more likely.

I've applied these 3 patches to v6.9-rc4:

mm: Create FOLIO_FLAG_FALSE and FOLIO_TYPE_OPS macros
mm: Support page_mapcount() on page_has_type() pages
mm: Turn folio_test_hugetlb into a PageType

The test in this patch still manages to trigger an unrecoverable
situation, and the trace is below. Note I'm using a SOAK_DURATION=9900
so about 2.75 hours on this test, the timestamps on the first task
blocking shows it took about 1 hour 11 minutes for this to trigger.

write_cache_pages() seems to linger with compaction.

  Luis

Apr 18 16:37:28 base-xfs-nocrc-2k unknown: run fstests generic/744 at 2024-04-18 16:37:28
Apr 18 16:37:29 base-xfs-nocrc-2k kernel: XFS (loop5): Mounting V4 Filesystem 2c71ddbc-bc0d-47d2-ad67-8089bc7434cf
Apr 18 16:37:29 base-xfs-nocrc-2k kernel: XFS (loop5): Ending clean mount
Apr 18 16:37:29 base-xfs-nocrc-2k kernel: xfs filesystem being mounted at /media/scratch supports timestamps until 2038-01-19 (0x7fffffff)
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task kworker/u37:7:44996 blocked for more than 120 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:kworker/u37:7   state:D stack:0     pid:44996 tgid:44996 ppid:2      flags:0x00004000
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Workqueue: writeback wb_workfn (flush-7:5)
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule_timeout (kernel/time/timer.c:2559) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? check_preempt_wakeup_fair (kernel/sched/fair.c:8349 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2544) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __flush_workqueue (kernel/workqueue.c:4002 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xlog_cil_push_now.isra.0 (fs/xfs/xfs_log_cil.c:1477 (discriminator 29)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xlog_cil_force_seq (./include/linux/spinlock.h:351 fs/xfs/xfs_log_cil.c:1687) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __xfs_btree_check_block (fs/xfs/libxfs/xfs_btree.c:244 fs/xfs/libxfs/xfs_btree.c:272) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_log_force (./include/linux/spinlock.h:351 fs/xfs/xfs_log.c:3194) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_extent_busy_flush (fs/xfs/xfs_extent_busy.c:615) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_alloc_ag_vextent_size (fs/xfs/libxfs/xfs_alloc.c:1879) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_alloc_vextent_iterate_ags.constprop.0 (fs/xfs/libxfs/xfs_alloc.c:3700) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_alloc_vextent_start_ag (fs/xfs/libxfs/xfs_alloc.c:3768) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_bmap_btalloc (fs/xfs/libxfs/xfs_bmap.c:3767 fs/xfs/libxfs/xfs_bmap.c:3808) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_bmapi_allocate (fs/xfs/libxfs/xfs_bmap.c:4184 fs/xfs/libxfs/xfs_bmap.c:4227) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_bmapi_convert_delalloc (fs/xfs/libxfs/xfs_bmap.c:4692) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_map_blocks (fs/xfs/xfs_aops.c:268 fs/xfs/xfs_aops.c:390) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: iomap_do_writepage (fs/iomap/buffered-io.c:1777 fs/iomap/buffered-io.c:1925 fs/iomap/buffered-io.c:1964) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_iomap_do_writepage (fs/iomap/buffered-io.c:1963) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: write_cache_pages (mm/page-writeback.c:2569) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: iomap_writepages (fs/iomap/buffered-io.c:1984) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_vm_writepages (fs/xfs/xfs_aops.c:508) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_writepages (mm/page-writeback.c:2612) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? wakeup_preempt (kernel/sched/core.c:2240) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? ttwu_do_activate (kernel/sched/core.c:3768 (discriminator 2) kernel/sched/core.c:3796 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? try_to_wake_up (./include/linux/preempt.h:480 (discriminator 3) ./include/linux/preempt.h:480 (discriminator 3) kernel/sched/core.c:4233 (discriminator 3)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __writeback_single_inode (fs/fs-writeback.c:1659) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_lock (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:134 (discriminator 4) kernel/locking/spinlock.c:154 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: writeback_sb_inodes (fs/fs-writeback.c:1943) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: wb_writeback (fs/fs-writeback.c:2117) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: wb_workfn (fs/fs-writeback.c:2265 fs/fs-writeback.c:2304) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __schedule (kernel/sched/core.c:6752) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task xfsaild/loop5:46115 blocked for more than 120 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:xfsaild/loop5   state:D stack:0     pid:46115 tgid:46115 ppid:2      flags:0x00004000
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wbt_cleanup_cb (block/blk-wbt.c:575) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wbt_inflight_cb (block/blk-wbt.c:569) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: rq_qos_wait (block/blk-rq-qos.c:284 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_rq_qos_wake_function (block/blk-rq-qos.c:208) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wbt_inflight_cb (block/blk-wbt.c:569) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: wbt_wait (block/blk-wbt.c:660) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __rq_qos_throttle (block/blk-rq-qos.c:66) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: blk_mq_submit_bio (block/blk-mq.c:2880 block/blk-mq.c:2984) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: submit_bio_noacct_nocheck (./include/linux/bio.h:639 block/blk-core.c:701 block/blk-core.c:729) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? submit_bio_noacct (block/blk-core.c:758 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: _xfs_buf_ioapply (fs/xfs/xfs_buf.c:1584 fs/xfs/xfs_buf.c:1671) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __xfs_buf_submit (./arch/x86/include/asm/atomic.h:67 ./include/linux/atomic/atomic-arch-fallback.h:2278 ./include/linux/atomic/atomic-instrumented.h:1384 fs/xfs/xfs_buf.c:1762) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_buf_delwri_submit_buffers (fs/xfs/xfs_buf.c:2280 (discriminator 2)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfsaild (fs/xfs/xfs_trans_ail.c:560 (discriminator 1) fs/xfs/xfs_trans_ail.c:671 (discriminator 1)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_lock_irqsave (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:111 (discriminator 4) kernel/locking/spinlock.c:162 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_xfsaild (fs/xfs/xfs_trans_ail.c:597) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task 744:46117 blocked for more than 120 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:744             state:D stack:0     pid:46117 tgid:46117 ppid:45928  flags:0x00004002
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: migrate_pages_batch (./include/linux/pagemap.h:1048 mm/migrate.c:1486 mm/migrate.c:1700) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_compaction_free (mm/compaction.c:1907) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_compaction_alloc (mm/compaction.c:1855) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __mod_node_page_state (mm/vmstat.c:403 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: migrate_pages (mm/migrate.c:1849 mm/migrate.c:1953) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_compaction_alloc (mm/compaction.c:1855) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_compaction_free (mm/compaction.c:1907) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __mod_node_page_state (mm/vmstat.c:403 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? folio_putback_lru (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/page_ref.h:67 ./include/linux/mm.h:1134 ./include/linux/mm.h:1140 ./include/linux/mm.h:1507 mm/vmscan.c:819) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: compact_zone (mm/compaction.c:2663) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: compact_node (mm/compaction.c:2925) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: sysctl_compaction_handler (mm/compaction.c:2946 mm/compaction.c:2996 mm/compaction.c:2983) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: proc_sys_call_handler (fs/proc/proc_sysctl.c:595) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: vfs_write (./include/linux/fs.h:2110 fs/read_write.c:497 fs/read_write.c:590) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ksys_write (fs/read_write.c:643) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RIP: 0033:0x7fd5b7abe240
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RSP: 002b:00007fff12f5c1d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd5b7abe240
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RDX: 0000000000000002 RSI: 0000556d0aacf160 RDI: 0000000000000001
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RBP: 0000556d0aacf160 R08: 0000000000000007 R09: 0000000000000073
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R13: 00007fd5b7b99760 R14: 0000000000000002 R15: 00007fd5b7b949e0
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task fsstress:46119 blocked for more than 120 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:fsstress        state:D stack:0     pid:46119 tgid:46119 ppid:46118  flags:0x00000002
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? path_openat (fs/namei.c:3497 fs/namei.c:3566 fs/namei.c:3796) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule_timeout (kernel/time/timer.c:2559) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_free_object_rcu (mm/kmemleak.c:508) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:505 ./include/linux/cpumask.h:1120 kernel/rcu/tree.c:2628 kernel/rcu/tree.c:2755) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2544) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __flush_work.isra.0 (kernel/workqueue.c:4211) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wq_barrier_func (kernel/workqueue.c:3742) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_flush_inodes (fs/xfs/xfs_super.c:635 (discriminator 1)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_create (fs/xfs/xfs_inode.c:1067) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __wake_up (kernel/sched/wait.c:110 kernel/sched/wait.c:127) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? get_cached_acl (fs/posix_acl.c:62) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_generic_create (fs/xfs/xfs_iops.c:199 (discriminator 1)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: path_openat (fs/namei.c:3497 fs/namei.c:3566 fs/namei.c:3796) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_filp_open (fs/namei.c:3826) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __check_object_size (mm/usercopy.c:196 mm/usercopy.c:251 mm/usercopy.c:213) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_sys_openat2 (fs/open.c:1406) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __x64_sys_creat (fs/open.c:1491) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RIP: 0033:0x7fba99e17a60
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RSP: 002b:00007ffff8aaf2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000055
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RAX: ffffffffffffffda RBX: 00000000000b0041 RCX: 00007fba99e17a60
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RDX: 0000000000000000 RSI: 00000000000001b6 RDI: 000055602f262c70
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RBP: 00007ffff8aaf460 R08: 00007fba99ef1c60 R09: 0000000000000078
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R10: 00007ffff8aaef74 R11: 0000000000000202 R12: 00000000000001b6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R13: 0000000000000000 R14: 00007ffff8aaf460 R15: 0000000000000001
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task fsstress:46120 blocked for more than 121 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:fsstress        state:D stack:0     pid:46120 tgid:46120 ppid:46118  flags:0x00000002
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule_timeout (kernel/time/timer.c:2559) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? wakeup_preempt (kernel/sched/core.c:2240) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2544) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __flush_work.isra.0 (kernel/workqueue.c:4211) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wq_barrier_func (kernel/workqueue.c:3742) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_create (fs/xfs/xfs_inode.c:1067) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __get_acl.part.0 (fs/posix_acl.c:159) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_generic_create (fs/xfs/xfs_iops.c:199 (discriminator 1)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: path_openat (fs/namei.c:3497 fs/namei.c:3566 fs/namei.c:3796) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_filp_open (fs/namei.c:3826) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __check_object_size (mm/usercopy.c:196 mm/usercopy.c:251 mm/usercopy.c:213) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_sys_openat2 (fs/open.c:1406) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __x64_sys_creat (fs/open.c:1491) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RIP: 0033:0x7fba99e17a60
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RSP: 002b:00007ffff8aaf2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000055
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RAX: ffffffffffffffda RBX: 00000000000aff0e RCX: 00007fba99e17a60
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RDX: 0000000000000000 RSI: 00000000000001b6 RDI: 000055602f2872a0
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RBP: 00007ffff8aaf460 R08: 00007fba99ef1c60 R09: 000055602f287550
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R10: 5a4c7c6f94523808 R11: 0000000000000202 R12: 00000000000001b6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R13: 0000000000000000 R14: 00007ffff8aaf460 R15: 0000000000000001
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task fsstress:46121 blocked for more than 121 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:fsstress        state:D stack:0     pid:46121 tgid:46121 ppid:46118  flags:0x00000002
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? path_openat (fs/namei.c:3497 fs/namei.c:3566 fs/namei.c:3796) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule_timeout (kernel/time/timer.c:2559) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_free_object_rcu (mm/kmemleak.c:508) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:505 ./include/linux/cpumask.h:1120 kernel/rcu/tree.c:2628 kernel/rcu/tree.c:2755) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2544) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __flush_work.isra.0 (kernel/workqueue.c:4211) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wq_barrier_func (kernel/workqueue.c:3742) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_flush_inodes (fs/xfs/xfs_super.c:635 (discriminator 1)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_create (fs/xfs/xfs_inode.c:1067) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __wake_up (kernel/sched/wait.c:110 kernel/sched/wait.c:127) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? get_cached_acl (fs/posix_acl.c:62) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_generic_create (fs/xfs/xfs_iops.c:199 (discriminator 1)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: path_openat (fs/namei.c:3497 fs/namei.c:3566 fs/namei.c:3796) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_filp_open (fs/namei.c:3826) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __check_object_size (mm/usercopy.c:196 mm/usercopy.c:251 mm/usercopy.c:213) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_sys_openat2 (fs/open.c:1406) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __x64_sys_creat (fs/open.c:1491) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RIP: 0033:0x7fba99e17a60
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RSP: 002b:00007ffff8aaf2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000055
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RAX: ffffffffffffffda RBX: 00000000000b698d RCX: 00007fba99e17a60
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RDX: 0000000000000000 RSI: 00000000000001b6 RDI: 000055602f304f60
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RBP: 00007ffff8aaf460 R08: 00007fba99ef1c60 R09: 0000000000000078
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R10: 00007ffff8aaef73 R11: 0000000000000202 R12: 00000000000001b6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R13: 0000000000000000 R14: 00007ffff8aaf460 R15: 0000000000000001
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task fsstress:46122 blocked for more than 121 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:fsstress        state:D stack:0     pid:46122 tgid:46122 ppid:46118  flags:0x00004002
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule_timeout (kernel/time/timer.c:2559) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? try_to_wake_up (./include/linux/preempt.h:480 (discriminator 3) ./include/linux/preempt.h:480 (discriminator 3) kernel/sched/core.c:4233 (discriminator 3)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2544) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __flush_workqueue (kernel/workqueue.c:4002 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xlog_cil_push_now.isra.0 (fs/xfs/xfs_log_cil.c:1477 (discriminator 29)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xlog_cil_force_seq (./include/linux/spinlock.h:351 fs/xfs/xfs_log_cil.c:1687) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:974 (discriminator 1) kernel/sched/core.c:5852 (discriminator 1) kernel/sched/core.c:5849 (discriminator 1) kernel/sched/core.c:5877 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_log_force (./include/linux/spinlock.h:351 fs/xfs/xfs_log.c:3194) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_fs_sync_fs (fs/xfs/xfs_super.c:782) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_sync_fs_one_sb (fs/sync.c:81) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: iterate_supers (fs/super.c:922) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ksys_sync (fs/sync.c:105) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __do_sys_sync (fs/sync.c:115) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RIP: 0033:0x7fba99e1db97
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RSP: 002b:00007ffff8aaf498 EFLAGS: 00000202 ORIG_RAX: 00000000000000a2
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RAX: ffffffffffffffda RBX: 00000000000b1de4 RCX: 00007fba99e1db97
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RDX: 000000005764828b RSI: 000000005764828b RDI: 00000000000b1de4
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: RBP: 000000000000c350 R08: 0000000000000073 R09: 0000000000000000
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R10: 00007ffff8aaf4e0 R11: 0000000000000202 R12: 0000555ff6a925a0
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: R13: 028f5c28f5c28f5c R14: 8f5c28f5c28f5c29 R15: 0000555ff6a7f540
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task kworker/u38:1:46372 blocked for more than 121 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:kworker/u38:1   state:D stack:0     pid:46372 tgid:46372 ppid:2      flags:0x00004000
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Workqueue: xfs-cil/loop5 xlog_cil_push_work [xfs]
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xlog_wait_on_iclog (fs/xfs/xfs_log_priv.h:623 fs/xfs/xfs_log.c:892) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_default_wake_function (kernel/sched/core.c:7078) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xlog_cil_push_work (./include/linux/spinlock.h:351 fs/xfs/xfs_log_cil.c:1312) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task kworker/u37:5:47276 blocked for more than 121 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:kworker/u37:5   state:D stack:0     pid:47276 tgid:47276 ppid:2      flags:0x00004000
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Workqueue: loop5 loop_rootcg_workfn [loop]
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: io_schedule (kernel/sched/core.c:9019 (discriminator 1) kernel/sched/core.c:9045 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: folio_wait_bit_common (mm/filemap.c:1275 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_wake_page_function (mm/filemap.c:1091) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: extent_write_cache_pages (fs/btrfs/extent_io.c:2130) btrfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: extent_writepages (fs/btrfs/extent_io.c:131 fs/btrfs/extent_io.c:2275) btrfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_end_bbio_data_write (fs/btrfs/extent_io.c:463) btrfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: do_writepages (mm/page-writeback.c:2612) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? process_one_work (kernel/workqueue.c:3254) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? kthread (kernel/kthread.c:388) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? preempt_count_add (./include/linux/ftrace.h:977 kernel/sched/core.c:5852 kernel/sched/core.c:5849 kernel/sched/core.c:5877) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __link_object (./include/linux/rculist.h:79 (discriminator 1) ./include/linux/rculist.h:128 (discriminator 1) mm/kmemleak.c:733 (discriminator 1)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: filemap_fdatawrite_wbc (mm/filemap.c:398 mm/filemap.c:387) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __filemap_fdatawrite_range (mm/filemap.c:431) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: start_ordered_ops.constprop.0 (fs/btrfs/file.c:3873 fs/btrfs/file.c:1743) btrfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: btrfs_sync_file (fs/btrfs/file.c:1818) btrfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: loop_process_work (drivers/block/loop.c:329 (discriminator 1) drivers/block/loop.c:475 (discriminator 1) drivers/block/loop.c:1907 (discriminator 1) drivers/block/loop.c:1942 (discriminator 1)) loop
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_lock_irqsave (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:111 (discriminator 4) kernel/locking/spinlock.c:162 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: INFO: task kworker/6:2:48556 blocked for more than 121 seconds.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:       Not tainted 6.9.0-rc4+ #6
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: task:kworker/6:2     state:D stack:0     pid:48556 tgid:48556 ppid:2      flags:0x00004000
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Workqueue: xfs-conv/loop5 xfs_end_io [xfs]
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Call Trace:
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  <TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: __schedule (kernel/sched/core.c:5409 kernel/sched/core.c:6746) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule (kernel/sched/core.c:6824 kernel/sched/core.c:6838) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: schedule_preempt_disabled (kernel/sched/core.c:6896) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: rwsem_down_write_slowpath (kernel/locking/rwsem.c:1180 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? xfs_trans_alloc (fs/xfs/xfs_trans.c:271 (discriminator 1)) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: down_write (kernel/locking/rwsem.c:1306 kernel/locking/rwsem.c:1315 kernel/locking/rwsem.c:1580) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_trans_alloc_inode (fs/xfs/xfs_trans.c:1210) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_iomap_write_unwritten (fs/xfs/xfs_iomap.c:606) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? iomap_finish_ioends (fs/iomap/buffered-io.c:1558) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_end_ioend (fs/xfs/xfs_aops.c:131) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: xfs_end_io (./include/linux/sched.h:1988 fs/xfs/xfs_aops.c:174) xfs
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: process_one_work (kernel/workqueue.c:3254) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? _raw_spin_lock_irqsave (./arch/x86/include/asm/atomic.h:115 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:111 (discriminator 4) kernel/locking/spinlock.c:162 (discriminator 4)) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_worker_thread (kernel/workqueue.c:3362) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: kthread (kernel/kthread.c:388) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ? __pfx_kthread (kernel/kthread.c:341) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
Apr 18 17:48:27 base-xfs-nocrc-2k kernel:  </TASK>
Apr 18 17:48:27 base-xfs-nocrc-2k kernel: Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings

Zorro Lang April 20, 2024, 2:02 p.m. UTC | #10

On Wed, Apr 17, 2024 at 05:13:56PM -0700, Luis Chamberlain wrote:
> Running compaction while we run fsstress can crash older kernels as per
> korg#218227 [0], the fix for that [0] has been posted [1] but that patch
> is not yet on v6.9-rc4 and the patch requires changes for v6.9.
> 
> Today I find that v6.9-rc4 is also hitting an unrecoverable hung task
> between compaction and fsstress while running generic/476 on the
> following kdevops test sections [2]:
> 
>   * xfs_nocrc
>   * xfs_nocrc_2k
>   * xfs_nocrc_4k
> 
> Analyzing the trace I see the guest uses loopback block devices for the
> fstests TEST_DEV, the loopback file uses sparsefiles on a btrfs
> partition. The contention based on traces [3] [4] seems to be that we
> have somehow have fsstress + compaction race on folio_wait_bit_common().
> 
> We have this happening:
> 
>   a) kthread compaction --> migrate_pages_batch()
>                 --> folio_wait_bit_common()
>   b) workqueue on btrfs writeback wb_workfn  --> extent_write_cache_pages()
>                 --> folio_wait_bit_common()
>   c) workqueue on loopback loop_rootcg_workfn() --> filemap_fdatawrite_wbc()
>                 --> folio_wait_bit_common()
>   d) kthread xfsaild --> blk_mq_submit_bio() --> wbt_wait()
> 
> I tried to reproduce but couldn't easily do so, so I wrote this test
> to help, and with this I have 100% failure rate so far out of 2 runs.
> 
> Given we also have korg#218227 and that patch likely needing
> backporting, folks will want a reproducer for this issue. This should
> hopefully help with that case and this new separate issue.
> 
> To reproduce with kdevops just:
> 
> make defconfig-xfs_nocrc_2k  -j $(nproc)
> make -j $(nproc)
> make fstests
> make linux
> make fstests-baseline TESTS=generic/733
> tail -f guestfs/*-xfs-nocrc-2k/console.log
> 
> [0] https://bugzilla.kernel.org/show_bug.cgi?id=218227
> [1] https://lore.kernel.org/all/7ee2bb8c-441a-418b-ba3a-d305f69d31c8@suse.cz/T/#u
> [2] https://github.com/linux-kdevops/kdevops/blob/main/playbooks/roles/fstests/templates/xfs/xfs.config
> [3] https://gist.github.com/mcgrof/4dfa3264f513ce6ca398414326cfab84
> [4] https://gist.github.com/mcgrof/f40a9f31a43793dac928ce287cfacfeb
> 
> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
> ---
> 
> Note: kdevops uses its own fork of fstests which has this merged
> already, so the above should just work. If it's your first time using
> kdevops be sure to just read the README for the first time users:
> 
> https://github.com/linux-kdevops/kdevops/blob/main/docs/kdevops-first-run.md
> 
>  common/rc             |  7 ++++++
>  tests/generic/744     | 56 +++++++++++++++++++++++++++++++++++++++++++
>  tests/generic/744.out |  2 ++
>  3 files changed, 65 insertions(+)
>  create mode 100755 tests/generic/744
>  create mode 100644 tests/generic/744.out
> 
> diff --git a/common/rc b/common/rc
> index b7b77ac1b46d..d4432f5ce259 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -120,6 +120,13 @@ _require_hugepages()
>  		_notrun "Kernel does not report huge page size"
>  }
>  
> +# Requires CONFIG_COMPACTION
> +_require_compaction()

I'm not sure if we should name it as "_require_vm_compaction", does linux
have other "compaction" or only memory compaction?

> +{
> +	if [ ! -f /proc/sys/vm/compact_memory ]; then
> +	    _notrun "Need compaction enabled CONFIG_COMPACTION=y"
> +	fi
> +}
>  # Get hugepagesize in bytes
>  _get_hugepagesize()
>  {
> diff --git a/tests/generic/744 b/tests/generic/744
> new file mode 100755
> index 000000000000..2b3c0c7e92fb
> --- /dev/null
> +++ b/tests/generic/744
> @@ -0,0 +1,56 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2024 Luis Chamberlain.  All Rights Reserved.
> +#
> +# FS QA Test 744
> +#
> +# fsstress + compaction test

fsstress + memory compaction ?

Looks like this case is copied from g/476, just add memory_compaction
test. That makes sense to me from the test side.

I'm a bit confused on your discussion about an old bug and a new bug(?)
you just found. Looks like you're reporting a bug, and provide a test
case to fstests@ by the way. Anyway, I think there's not objection on
this test itself, right? And is this test for someone known bug or not?

> +#
> +. ./common/preamble
> +_begin_fstest auto rw long_rw stress soak smoketest
> +
> +_cleanup()
> +{
> +	cd /
> +	rm -f $tmp.*
> +	$KILLALL_PROG -9 fsstress > /dev/null 2>&1
> +}
> +
> +# Import common functions.
> +
> +# real QA test starts here
> +
> +# Modify as appropriate.

Useless comment~

> +_supported_fs generic
> +
> +_require_scratch
> +_require_compaction
> +_require_command "$KILLALL_PROG" "killall"
> +
> +echo "Silence is golden."
> +
> +_scratch_mkfs > $seqres.full 2>&1
> +_scratch_mount >> $seqres.full 2>&1
> +
> +nr_cpus=$((LOAD_FACTOR * 4))
> +nr_ops=$((25000 * nr_cpus * TIME_FACTOR))
> +fsstress_args=(-w -d $SCRATCH_MNT -n $nr_ops -p $nr_cpus)
> +
> +# start a background getxattr loop for the existing xattr
> +runfile="$tmp.getfattr"
> +touch $runfile
> +while [ -e $runfile ]; do
> +	echo 1 > /proc/sys/vm/compact_memory
> +	sleep 15
> +done &
> +getfattr_pid=$!

I didn't see any other place use this "getfattr_pid". Better to deal with
it in _cleanup().

> +
> +test -n "$SOAK_DURATION" && fsstress_args+=(--duration="$SOAK_DURATION")
> +
> +$FSSTRESS_PROG $FSSTRESS_AVOID "${fsstress_args[@]}" >> $seqres.full
> +
> +rm -f $runfile
> +wait > /dev/null 2>&1

Better to do these things in _cleanup() function, make sure all background
processes can be done in _cleanup.

> +
> +status=0
> +exit
> diff --git a/tests/generic/744.out b/tests/generic/744.out
> new file mode 100644
> index 000000000000..205c684fa995
> --- /dev/null
> +++ b/tests/generic/744.out
> @@ -0,0 +1,2 @@
> +QA output created by 744
> +Silence is golden
> -- 
> 2.43.0
> 
>

fstests: add fsstress + compaction test

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