How to repair "btrfs_chunk_readonly: BUG_ON `!ce` triggered, value 1"?
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Message ID 20190115.204707.136083983019108814.hhiraki@nig.ac.jp
State New
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  • How to repair "btrfs_chunk_readonly: BUG_ON `!ce` triggered, value 1"?
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Commit Message

HIRAKI Hideaki Jan. 15, 2019, 11:47 a.m. UTC
Hello,

I have two questions and a bug report.

Once upon a time I converted an ext3 partition to BTRFS to mount on
/var/lib/docker and was happy with it. Recently an error occured:

 kernel: BTRFS info (device sdc1): leaf 2013170442240 total ptrs 171 free space 6365
 kernel: BTRFS error (device sdc1): eb 2013170442240 invalid extent inline ref type 182
 kernel: BTRFS: Transaction aborted (error -22)
 kernel: BTRFS: error (device sdc1) in btrfs_run_delayed_refs:3089: errno=-22 unknown
 kernel: BTRFS info (device sdc1): forced readonly
 kernel: BTRFS error (device sdc1): pending csums is 77824

Now I know this was caused by the kernel upgrade from 4.12.5 to 4.14.83 which
introduced an additional check of alignments rather than by a recent trivial
file system corruption. But I was hasty and commited such follies as hard
resets on busy kernel, btrfs rescue chunk-recover -y, btrfs check --repair,
etc. As you may expect, the partition is not mountable any more:

# mount -o compress=lzo,noatime /dev/sdc1 /mnt/temp
mount: /mnt/temp: wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or helper program, or other error.

 kernel: BTRFS info (device sdc1): use lzo compression
 kernel: BTRFS info (device sdc1): disk space caching is enabled
 kernel: BTRFS info (device sdc1): has skinny extents
 kernel: BTRFS info (device sdc1): bdev /dev/sdc1 errs: wr 1396, rd 0, flush 0, corrupt 0, gen 0
 kernel: BTRFS error (device sdc1): logical 3955568533504 len 1073741824 found bg but no related chunk
 kernel: BTRFS error (device sdc1): failed to read block groups: -2
 kernel: BTRFS error (device sdc1): open_ctree failed

Even btrfs check aborts:

# btrfs check --repair /dev/sdc1
enabling repair mode
Opening filesystem to check...
volumes.c:1729: btrfs_chunk_readonly: BUG_ON `!ce` triggered, value 1
btrfs(+0x2e246)[0x562a5547c246]
btrfs(+0x30cac)[0x562a5547ecac]
btrfs(btrfs_read_block_groups+0x27d)[0x562a55471f8d]
btrfs(btrfs_setup_all_roots+0x35f)[0x562a5546bc9f]
btrfs(+0x1e0cb)[0x562a5546c0cb]
btrfs(open_ctree_fs_info+0x8c)[0x562a5546c2cc]
btrfs(cmd_check+0x4db)[0x562a554b670b]
btrfs(main+0x7a)[0x562a55461e2a]
/lib64/libc.so.6(__libc_start_main+0xee)[0x7f83e3598bde]
btrfs(_start+0x2a)[0x562a55461f3a]
Aborted

How to repair this file system?


The second question is about btrfs-restore. It doesn't restore subvolumes
even when the destination path is in a BTRFS file system. "btrfs restore -l"
is to list subvolumes but the output lacks the path (relative to the top
level subvolume) information. With the information, the destination of
btrfs-restore with the subvolumes could be prepared and hopefully
"dockerd" would work properly with the restored file tree, though the files
would be duplicated significantly.

How can the subvolumes' paths be obtained from an unmountable file system?


By the way, some constants in the source code had to be increased to run
btrfs-restore for me.


The first one is to avoid the abortion with "*** stack smashing detected ***".
So, not only the increase but also a size checking code (at least) is
necessary to fix this bug. I hope the other two constants (if necessary) will
be tunable from the command line option.


For your information:

# uname -a
Linux plcd1 4.14.83-gentoo #1 SMP Wed Dec 19 00:20:46 JST 2018 x86_64 Intel(R) Core(TM) i7-3970X CPU @ 3.50GHz GenuineIntel GNU/Linux

# btrfs --version
btrfs-progs v4.19 

# btrfs fi show
Label: none  uuid: 5e3d788d-5b81-4e3e-8776-5a131d008cbc
        Total devices 1 FS bytes used 1.41TiB
        devid    1 size 1.82TiB used 1.43TiB path /dev/sdc1


Regards,

Hideaki

Comments

Qu Wenruo Jan. 15, 2019, 12:55 p.m. UTC | #1
On 2019/1/15 下午7:47, HIRAKI Hideaki wrote:
> Hello,
> 
> I have two questions and a bug report.
> 
> Once upon a time I converted an ext3 partition to BTRFS to mount on
> /var/lib/docker and was happy with it. Recently an error occured:
> 
>  kernel: BTRFS info (device sdc1): leaf 2013170442240 total ptrs 171 free space 6365
>  kernel: BTRFS error (device sdc1): eb 2013170442240 invalid extent inline ref type 182
>  kernel: BTRFS: Transaction aborted (error -22)
>  kernel: BTRFS: error (device sdc1) in btrfs_run_delayed_refs:3089: errno=-22 unknown
>  kernel: BTRFS info (device sdc1): forced readonly
>  kernel: BTRFS error (device sdc1): pending csums is 77824
> 
> Now I know this was caused by the kernel upgrade from 4.12.5 to 4.14.83 which
> introduced an additional check of alignments rather than by a recent trivial
> file system corruption.

Nope, the alignment check is mostly done by tree-checker, but it's not
the case.

It's a really valid extent type checker, introduced by commit
167ce953ca55 ("Btrfs: add a helper to retrive extent inline ref type"),
which get merged into v4.14.

I'm not pretty sure why but this looks like either some corruption in
extent tree code, or just too old btrfs-convert.

> But I was hasty and commited such follies as hard
> resets on busy kernel, btrfs rescue chunk-recover -y,

Chunk-recovery is normally useless.

> btrfs check --repair,

And this could cause more problem unless you're really knowing the
problem can be fixed or your data isn't that important.

> etc. As you may expect, the partition is not mountable any more:
> 
> # mount -o compress=lzo,noatime /dev/sdc1 /mnt/temp
> mount: /mnt/temp: wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or helper program, or other error.
> 
>  kernel: BTRFS info (device sdc1): use lzo compression
>  kernel: BTRFS info (device sdc1): disk space caching is enabled
>  kernel: BTRFS info (device sdc1): has skinny extents
>  kernel: BTRFS info (device sdc1): bdev /dev/sdc1 errs: wr 1396, rd 0, flush 0, corrupt 0, gen 0
>  kernel: BTRFS error (device sdc1): logical 3955568533504 len 1073741824 found bg but no related chunk

Some bad recovery move caused more problem, one block group doesn't has
corresponding chunk.
I don't know exactly what the cause is.

>  kernel: BTRFS error (device sdc1): failed to read block groups: -2
>  kernel: BTRFS error (device sdc1): open_ctree failed
> 
> Even btrfs check aborts:
> 
> # btrfs check --repair /dev/sdc1> enabling repair mode
> Opening filesystem to check...
> volumes.c:1729: btrfs_chunk_readonly: BUG_ON `!ce` triggered, value 1
> btrfs(+0x2e246)[0x562a5547c246]
> btrfs(+0x30cac)[0x562a5547ecac]

This could be worked around.

diff --git a/volumes.c b/volumes.c
index 30090ce5f8e8..05deeed710fb 100644
--- a/volumes.c
+++ b/volumes.c
@@ -1725,9 +1725,7 @@ int btrfs_chunk_readonly(struct btrfs_fs_info
*fs_info, u64 chunk_offset)
         * corresponding chunk, we will rebuild it later
         */
        ce = search_cache_extent(&map_tree->cache_tree, chunk_offset);
-       if (!fs_info->is_chunk_recover)
-               BUG_ON(!ce);
-       else
+       if (!ce)
                return 0;

        map = container_of(ce, struct map_lookup, ce);



> btrfs(btrfs_read_block_groups+0x27d)[0x562a55471f8d]
> btrfs(btrfs_setup_all_roots+0x35f)[0x562a5546bc9f]
> btrfs(+0x1e0cb)[0x562a5546c0cb]
> btrfs(open_ctree_fs_info+0x8c)[0x562a5546c2cc]
> btrfs(cmd_check+0x4db)[0x562a554b670b]
> btrfs(main+0x7a)[0x562a55461e2a]
> /lib64/libc.so.6(__libc_start_main+0xee)[0x7f83e3598bde]
> btrfs(_start+0x2a)[0x562a55461f3a]
> Aborted
> 
> How to repair this file system?

Use above diff to allow btrfs check to continue.
But no --repair, and paste the output.

Unfortunately, I don't believe the chance of a proper recovery is high.

> 
> 
> The second question is about btrfs-restore. It doesn't restore subvolumes
> even when the destination path is in a BTRFS file system.

I had a plan to support snapshot/subvolume creation for btrfs-restore if
destination is btrfs, or supports reflink.

But that feature will be too late for your use case anyway.

> "btrfs restore -l"
> is to list subvolumes but the output lacks the path (relative to the top
> level subvolume) information.

You could try my experimental patch:
https://patchwork.kernel.org/patch/10738583/

It provides kernel equivalent of btrfs-restore, using 'ro,skip_bg' mount
option.

If everything goes OK, then you should be able to get 'btrfs subv list'
working.

Thanks,
Qu

> With the information, the destination of
> btrfs-restore with the subvolumes could be prepared and hopefully
> "dockerd" would work properly with the restored file tree, though the files
> would be duplicated significantly.


> 
> How can the subvolumes' paths be obtained from an unmountable file system?
> 
> 
> By the way, some constants in the source code had to be increased to run
> btrfs-restore for me.
> 
> --- cmds-restore.c~   2018-11-03 19:06:34.000000000 +0900
> +++ cmds-restore.c    2019-01-09 00:34:17.000000000 +0900
> @@ -289,7 +289,7 @@ static int copy_one_inline(struct btrfs_
>  {
>         struct extent_buffer *leaf = path->nodes[0];
>         struct btrfs_file_extent_item *fi;
> -       char buf[4096];
> +       char buf[65536];
>         char *outbuf;
>         u64 ram_size;
>         ssize_t done;
> @@ -729,7 +729,7 @@ static int copy_file(struct btrfs_root *
>         }
>  
>         while (1) {
> -               if (loops >= 0 && loops++ >= 1024) {
> +               if (loops >= 0 && loops++ >= 102400) {
>                         enum loop_response resp;
>  
>                         resp = ask_to_continue(file);
> @@ -1007,7 +1007,7 @@ static int search_dir(struct btrfs_root
>         }
>  
>         while (leaf) {
> -               if (loops++ >= 1024) {
> +               if (loops++ >= 102400) {
>                         printf("We have looped trying to restore files in %s "
>                                "too many times to be making progress, "
>                                "stopping\n", in_dir);
> 
> The first one is to avoid the abortion with "*** stack smashing detected ***".
> So, not only the increase but also a size checking code (at least) is
> necessary to fix this bug. I hope the other two constants (if necessary) will
> be tunable from the command line option.
> 
> 
> For your information:
> 
> # uname -a
> Linux plcd1 4.14.83-gentoo #1 SMP Wed Dec 19 00:20:46 JST 2018 x86_64 Intel(R) Core(TM) i7-3970X CPU @ 3.50GHz GenuineIntel GNU/Linux
> 
> # btrfs --version
> btrfs-progs v4.19 
> 
> # btrfs fi show
> Label: none  uuid: 5e3d788d-5b81-4e3e-8776-5a131d008cbc
>         Total devices 1 FS bytes used 1.41TiB
>         devid    1 size 1.82TiB used 1.43TiB path /dev/sdc1
> 
> 
> Regards,
> 
> Hideaki
>
HIRAKI Hideaki Jan. 15, 2019, 1:53 p.m. UTC | #2
Dear Qu,

At Tue, 15 Jan 2019 20:55:38 +0800, Qu Wenruo wrote:
> On 2019/1/15 下午7:47, HIRAKI Hideaki wrote:
>> Hello,
>> 
>> I have two questions and a bug report.
>> 
>> Once upon a time I converted an ext3 partition to BTRFS to mount on
>> /var/lib/docker and was happy with it. Recently an error occured:
>> 
>>  kernel: BTRFS info (device sdc1): leaf 2013170442240 total ptrs 171 free space 6365
>>  kernel: BTRFS error (device sdc1): eb 2013170442240 invalid extent inline ref type 182
>>  kernel: BTRFS: Transaction aborted (error -22)
>>  kernel: BTRFS: error (device sdc1) in btrfs_run_delayed_refs:3089: errno=-22 unknown
>>  kernel: BTRFS info (device sdc1): forced readonly
>>  kernel: BTRFS error (device sdc1): pending csums is 77824
>> 
>> Now I know this was caused by the kernel upgrade from 4.12.5 to 4.14.83 which
>> introduced an additional check of alignments rather than by a recent trivial
>> file system corruption.
> 
> Nope, the alignment check is mostly done by tree-checker, but it's not
> the case.
> 
> It's a really valid extent type checker, introduced by commit
> 167ce953ca55 ("Btrfs: add a helper to retrive extent inline ref type"),
> which get merged into v4.14.
> 
> I'm not pretty sure why but this looks like either some corruption in
> extent tree code, or just too old btrfs-convert.
>

I'm sorry too much was ommitted in the message. Grepping "kernel: BTRFS" was
not enough. Full log is attached.

>> But I was hasty and commited such follies as hard
>> resets on busy kernel, btrfs rescue chunk-recover -y,
> 
> Chunk-recovery is normally useless.
> 
>> btrfs check --repair,
> 
> And this could cause more problem unless you're really knowing the
> problem can be fixed or your data isn't that important.
> 
>> etc. As you may expect, the partition is not mountable any more:
>> 
>> # mount -o compress=lzo,noatime /dev/sdc1 /mnt/temp
>> mount: /mnt/temp: wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or helper program, or other error.
>> 
>>  kernel: BTRFS info (device sdc1): use lzo compression
>>  kernel: BTRFS info (device sdc1): disk space caching is enabled
>>  kernel: BTRFS info (device sdc1): has skinny extents
>>  kernel: BTRFS info (device sdc1): bdev /dev/sdc1 errs: wr 1396, rd 0, flush 0, corrupt 0, gen 0
>>  kernel: BTRFS error (device sdc1): logical 3955568533504 len 1073741824 found bg but no related chunk
> 
> Some bad recovery move caused more problem, one block group doesn't has
> corresponding chunk.
> I don't know exactly what the cause is.
> 
>>  kernel: BTRFS error (device sdc1): failed to read block groups: -2
>>  kernel: BTRFS error (device sdc1): open_ctree failed
>> 
>> Even btrfs check aborts:
>> 
>> # btrfs check --repair /dev/sdc1
>> enabling repair mode
>> Opening filesystem to check...
>> volumes.c:1729: btrfs_chunk_readonly: BUG_ON `!ce` triggered, value 1
>> btrfs(+0x2e246)[0x562a5547c246]
>> btrfs(+0x30cac)[0x562a5547ecac]
> 
> This could be worked around.
> 
> diff --git a/volumes.c b/volumes.c
> index 30090ce5f8e8..05deeed710fb 100644
> --- a/volumes.c
> +++ b/volumes.c
> @@ -1725,9 +1725,7 @@ int btrfs_chunk_readonly(struct btrfs_fs_info
> *fs_info, u64 chunk_offset)
>          * corresponding chunk, we will rebuild it later
>          */
>         ce = search_cache_extent(&map_tree->cache_tree, chunk_offset);
> -       if (!fs_info->is_chunk_recover)
> -               BUG_ON(!ce);
> -       else
> +       if (!ce)
>                 return 0;
> 
>         map = container_of(ce, struct map_lookup, ce);
> 
> 
> 
>> btrfs(btrfs_read_block_groups+0x27d)[0x562a55471f8d]
>> btrfs(btrfs_setup_all_roots+0x35f)[0x562a5546bc9f]
>> btrfs(+0x1e0cb)[0x562a5546c0cb]
>> btrfs(open_ctree_fs_info+0x8c)[0x562a5546c2cc]
>> btrfs(cmd_check+0x4db)[0x562a554b670b]
>> btrfs(main+0x7a)[0x562a55461e2a]
>> /lib64/libc.so.6(__libc_start_main+0xee)[0x7f83e3598bde]
>> btrfs(_start+0x2a)[0x562a55461f3a]
>> Aborted
>> 
>> How to repair this file system?
> 
> Use above diff to allow btrfs check to continue.
> But no --repair, and paste the output.
>

Thank you for the suggestion. That hit another BUG_ON.

# ./btrfs check /dev/sdc1
Opening filesystem to check...
volumes.c:1382: btrfs_rmap_block: BUG_ON `!ce` triggered, value 1
./btrfs(+0x3d001)[0x55c9b23ea001]
./btrfs(+0x3d09f)[0x55c9b23ea09f]
./btrfs(btrfs_rmap_block+0x89)[0x55c9b23ee13d]
./btrfs(exclude_super_stripes+0xd4)[0x55c9b23d9ec3]
./btrfs(btrfs_read_block_groups+0x2b3)[0x55c9b23d7bf0]
./btrfs(btrfs_setup_all_roots+0x402)[0x55c9b23cc49d]
./btrfs(+0x1fe6f)[0x55c9b23cce6f]
./btrfs(open_ctree_fs_info+0x177)[0x55c9b23cd06b]
./btrfs(cmd_check+0x725)[0x55c9b2447784]
./btrfs(main+0x127)[0x55c9b23c08e9]
/lib64/libc.so.6(__libc_start_main+0xee)[0x7f0552d46bde]
./btrfs(_start+0x2a)[0x55c9b23c016a]
Aborted


> Unfortunately, I don't believe the chance of a proper recovery is high.
> 
>> 
>> 
>> The second question is about btrfs-restore. It doesn't restore subvolumes
>> even when the destination path is in a BTRFS file system.
> 
> I had a plan to support snapshot/subvolume creation for btrfs-restore if
> destination is btrfs, or supports reflink.
> 
> But that feature will be too late for your use case anyway.
> 
>> "btrfs restore -l"
>> is to list subvolumes but the output lacks the path (relative to the top
>> level subvolume) information.
> 
> You could try my experimental patch:
> https://patchwork.kernel.org/patch/10738583/
> 
> It provides kernel equivalent of btrfs-restore, using 'ro,skip_bg' mount
> option.
> 
> If everything goes OK, then you should be able to get 'btrfs subv list'
> working.
>

I'll try this later.

Thanks again,

Hideaki


> Thanks,
> Qu
> 
>> With the information, the destination of
>> btrfs-restore with the subvolumes could be prepared and hopefully
>> "dockerd" would work properly with the restored file tree, though the files
>> would be duplicated significantly.
> 
> 
>> 
>> How can the subvolumes' paths be obtained from an unmountable file system?
>> 
>> 
>> By the way, some constants in the source code had to be increased to run
>> btrfs-restore for me.
>> 
>> --- cmds-restore.c~   2018-11-03 19:06:34.000000000 +0900
>> +++ cmds-restore.c    2019-01-09 00:34:17.000000000 +0900
>> @@ -289,7 +289,7 @@ static int copy_one_inline(struct btrfs_
>>  {
>>         struct extent_buffer *leaf = path->nodes[0];
>>         struct btrfs_file_extent_item *fi;
>> -       char buf[4096];
>> +       char buf[65536];
>>         char *outbuf;
>>         u64 ram_size;
>>         ssize_t done;
>> @@ -729,7 +729,7 @@ static int copy_file(struct btrfs_root *
>>         }
>>  
>>         while (1) {
>> -               if (loops >= 0 && loops++ >= 1024) {
>> +               if (loops >= 0 && loops++ >= 102400) {
>>                         enum loop_response resp;
>>  
>>                         resp = ask_to_continue(file);
>> @@ -1007,7 +1007,7 @@ static int search_dir(struct btrfs_root
>>         }
>>  
>>         while (leaf) {
>> -               if (loops++ >= 1024) {
>> +               if (loops++ >= 102400) {
>>                         printf("We have looped trying to restore files in %s "
>>                                "too many times to be making progress, "
>>                                "stopping\n", in_dir);
>> 
>> The first one is to avoid the abortion with "*** stack smashing detected ***".
>> So, not only the increase but also a size checking code (at least) is
>> necessary to fix this bug. I hope the other two constants (if necessary) will
>> be tunable from the command line option.
>> 
>> 
>> For your information:
>> 
>> # uname -a
>> Linux plcd1 4.14.83-gentoo #1 SMP Wed Dec 19 00:20:46 JST 2018 x86_64 Intel(R) Core(TM) i7-3970X CPU @ 3.50GHz GenuineIntel GNU/Linux
>> 
>> # btrfs --version
>> btrfs-progs v4.19 
>> 
>> # btrfs fi show
>> Label: none  uuid: 5e3d788d-5b81-4e3e-8776-5a131d008cbc
>>         Total devices 1 FS bytes used 1.41TiB
>>         devid    1 size 1.82TiB used 1.43TiB path /dev/sdc1
>> 
>> 
>> Regards,
>> 
>> Hideaki
>>
kernel: BTRFS info (device sdc1): leaf 2013170442240 total ptrs 171 free space 6365
kernel: \x09item 0 key (2013167067136 169 0) itemoff 16250 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2020178714624
kernel: \x09\x09\x09(parent 2020178714624 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 1 key (2013167083520 169 0) itemoff 16217 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015173484544
kernel: \x09\x09\x09(parent 2015173484544 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 2 key (2013167099904 169 0) itemoff 16184 itemsize 33
kernel: \x09\x09extent refs 1 gen 64548 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 3 key (2013167116288 169 0) itemoff 16151 itemsize 33
kernel: \x09\x09extent refs 1 gen 64548 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 4 key (2013167149056 169 0) itemoff 16118 itemsize 33
kernel: \x09\x09extent refs 1 gen 64548 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 5 key (2013167181824 169 0) itemoff 16085 itemsize 33
kernel: \x09\x09extent refs 1 gen 64548 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 6 key (2013167198208 169 0) itemoff 16052 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2023501193216
kernel: \x09\x09\x09(parent 2023501193216 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 7 key (2013167214592 169 0) itemoff 16019 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015231467520
kernel: \x09\x09\x09(parent 2015231467520 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 8 key (2013167230976 169 0) itemoff 15986 itemsize 33
kernel: \x09\x09extent refs 1 gen 64548 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 9 key (2013167247360 169 0) itemoff 15953 itemsize 33
kernel: \x09\x09extent refs 1 gen 64548 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 10 key (2013167263744 169 0) itemoff 15920 itemsize 33
kernel: \x09\x09extent refs 1 gen 59623 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 11 key (2013167280128 169 1) itemoff 15887 itemsize 33
kernel: \x09\x09extent refs 1 gen 65563 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 12 key (2013167296512 169 0) itemoff 15854 itemsize 33
kernel: \x09\x09extent refs 1 gen 65563 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 13 key (2013167312896 169 0) itemoff 15821 itemsize 33
kernel: \x09\x09extent refs 1 gen 65563 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 14 key (2013167329280 169 0) itemoff 15788 itemsize 33
kernel: \x09\x09extent refs 1 gen 65563 flags 2
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kernel: \x09\x09\x09(parent 2015231664128 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 111 key (2013169278976 169 0) itemoff 12587 itemsize 33
kernel: \x09\x09extent refs 1 gen 64888 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 112 key (2013169295360 169 0) itemoff 12554 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2023700455424
kernel: \x09\x09\x09(parent 2023700455424 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 113 key (2013169311744 169 0) itemoff 12521 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2017372217344
kernel: \x09\x09\x09(parent 2017372217344 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 114 key (2013169328128 169 0) itemoff 12488 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2023501193216
kernel: \x09\x09\x09(parent 2023501193216 is NOT ALIGNED to nodesize 16384)
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kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015231467520
kernel: \x09\x09\x09(parent 2015231467520 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 116 key (2013169360896 169 0) itemoff 12422 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2013483720704
kernel: \x09\x09\x09(parent 2013483720704 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 117 key (2013169377280 169 0) itemoff 12389 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 118 key (2013169393664 169 0) itemoff 12356 itemsize 33
kernel: \x09\x09extent refs 1 gen 64888 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 119 key (2013169410048 169 0) itemoff 12323 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 120 key (2013169426432 169 0) itemoff 12290 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 121 key (2013169442816 169 0) itemoff 12257 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2017581981696
kernel: \x09\x09\x09(parent 2017581981696 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 122 key (2013169459200 169 0) itemoff 12224 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2020335722496
kernel: \x09\x09\x09(parent 2020335722496 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 123 key (2013169475584 169 0) itemoff 12191 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 124 key (2013169491968 169 0) itemoff 12158 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015173484544
kernel: \x09\x09\x09(parent 2015173484544 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 125 key (2013169508352 169 0) itemoff 12125 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2021633548288
kernel: \x09\x09\x09(parent 2021633548288 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 126 key (2013169524736 169 0) itemoff 12092 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 127 key (2013169541120 169 0) itemoff 12059 itemsize 33
kernel: \x09\x09extent refs 1 gen 64888 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 128 key (2013169557504 169 0) itemoff 12026 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2013511163904
kernel: \x09\x09\x09(parent 2013511163904 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 129 key (2013169573888 169 0) itemoff 11993 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 130 key (2013169606656 169 0) itemoff 11960 itemsize 33
kernel: \x09\x09extent refs 1 gen 64888 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 131 key (2013169623040 169 0) itemoff 11927 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 132 key (2013169639424 169 0) itemoff 11894 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 133 key (2013169672192 169 0) itemoff 11861 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2021633679360
kernel: \x09\x09\x09(parent 2021633679360 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 134 key (2013169688576 169 0) itemoff 11828 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2021835939840
kernel: \x09\x09\x09(parent 2021835939840 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 135 key (2013169704960 169 0) itemoff 11795 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2018379210752
kernel: \x09\x09\x09(parent 2018379210752 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 136 key (2013169737728 169 0) itemoff 11762 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2021835939840
kernel: \x09\x09\x09(parent 2021835939840 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 137 key (2013169754112 169 0) itemoff 11729 itemsize 33
kernel: \x09\x09extent refs 1 gen 455389 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 138 key (2013169770496 169 0) itemoff 11696 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022490284032
kernel: \x09\x09\x09(parent 2022490284032 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 139 key (2013169786880 169 0) itemoff 11663 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2020335722496
kernel: \x09\x09\x09(parent 2020335722496 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 140 key (2013169803264 169 0) itemoff 11630 itemsize 33
kernel: \x09\x09extent refs 1 gen 455389 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 141 key (2013169819648 169 0) itemoff 11597 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2020335722496
kernel: \x09\x09\x09(parent 2020335722496 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 142 key (2013169852416 169 0) itemoff 11564 itemsize 33
kernel: \x09\x09extent refs 1 gen 455403 flags 2
kernel: \x09\x09ref#0: tree block backref root 257
kernel: \x09item 143 key (2013169868800 169 0) itemoff 11531 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2021835939840
kernel: \x09\x09\x09(parent 2021835939840 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 144 key (2013169885184 169 0) itemoff 11498 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2018379210752
kernel: \x09\x09\x09(parent 2018379210752 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 145 key (2013169934336 169 0) itemoff 11465 itemsize 33
kernel: \x09\x09extent refs 1 gen 64889 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2014895153152
kernel: \x09\x09\x09(parent 2014895153152 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 146 key (2013169950720 169 0) itemoff 11432 itemsize 33
kernel: \x09\x09extent refs 1 gen 54095 flags 2
kernel: \x09\x09ref#0: tree block backref root 7
kernel: \x09item 147 key (2013169967104 169 0) itemoff 11399 itemsize 33
kernel: \x09\x09extent refs 1 gen 64885 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 148 key (2013169983488 169 0) itemoff 11366 itemsize 33
kernel: \x09\x09extent refs 1 gen 64885 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 149 key (2013169999872 169 0) itemoff 11333 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2021835939840
kernel: \x09\x09\x09(parent 2021835939840 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 150 key (2013170016256 169 0) itemoff 11300 itemsize 33
kernel: \x09\x09extent refs 1 gen 64885 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 151 key (2013170032640 169 0) itemoff 11267 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2021835939840
kernel: \x09\x09\x09(parent 2021835939840 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 152 key (2013170049024 169 0) itemoff 11234 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 153 key (2013170081792 169 0) itemoff 11201 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 154 key (2013170098176 169 0) itemoff 11168 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 155 key (2013170114560 169 0) itemoff 11135 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 156 key (2013170130944 169 0) itemoff 11102 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 157 key (2013170147328 169 0) itemoff 11069 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015221325824
kernel: \x09\x09\x09(parent 2015221325824 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 158 key (2013170163712 169 0) itemoff 11036 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2018191876096
kernel: \x09\x09\x09(parent 2018191876096 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 159 key (2013170180096 169 0) itemoff 11003 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015159410688
kernel: \x09\x09\x09(parent 2015159410688 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 160 key (2013170196480 169 0) itemoff 10970 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 161 key (2013170212864 169 0) itemoff 10937 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015173484544
kernel: \x09\x09\x09(parent 2015173484544 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 162 key (2013170229248 169 0) itemoff 10904 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2015212544000
kernel: \x09\x09\x09(parent 2015212544000 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 163 key (2013170245632 169 0) itemoff 10871 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 164 key (2013170262016 169 0) itemoff 10838 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 165 key (2013170278400 169 0) itemoff 10805 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 166 key (2013170294784 169 0) itemoff 10772 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 167 key (2013170311168 169 0) itemoff 10739 itemsize 33
kernel: \x09\x09extent refs 1 gen 58021 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022502195200
kernel: \x09\x09\x09(parent 2022502195200 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 168 key (2013170327552 169 0) itemoff 10706 itemsize 33
kernel: \x09\x09extent refs 1 gen 65015 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2018379210752
kernel: \x09\x09\x09(parent 2018379210752 is NOT ALIGNED to nodesize 16384)
kernel: \x09item 169 key (2013170343936 169 0) itemoff 10673 itemsize 33
kernel: \x09\x09extent refs 1 gen 65164 flags 2
kernel: \x09\x09ref#0: tree block backref root 2
kernel: \x09item 170 key (2013170360320 169 0) itemoff 10640 itemsize 33
kernel: \x09\x09extent refs 1 gen 43688 flags 258
kernel: \x09\x09ref#0: shared block backref parent 2022671196160
kernel: \x09\x09\x09(parent 2022671196160 is NOT ALIGNED to nodesize 16384)
kernel: BTRFS error (device sdc1): eb 2013170442240 invalid extent inline ref type 182
kernel: ------------[ cut here ]------------
kernel: WARNING: CPU: 0 PID: 1444 at fs/btrfs/extent-tree.c:1204 btrfs_get_extent_inline_ref_type+0x76/0xf0 [btrfs]
kernel: Modules linked in: xt_nat veth uinput nfsv3 rpcsec_gss_krb5 nfsv4 ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc ipt_REJECT nf_reject_ipv4 xt_multiport iptable_filter ip_tables rfcomm bnep autofs4 nfsd auth_rpcgss nfs_acl ipv6 crc_ccitt nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) x86_pkg_temp_thermal coretemp kvm_intel kvm drm_kms_helper btusb snd_hda_codec_hdmi drm syscopyarea sysfillrect btrtl btbcm btintel bluetooth sysimgblt fb_sys_fops ecdh_generic rfkill snd_hda_codec_realtek snd_hda_codec_generic e1000e irqbypass snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep iTCO_wdt snd_pcm snd_timer snd soundcore iTCO_vendor_support crc32c_intel
kernel:  wmi_bmof ghash_clmulni_intel mxm_wmi wmi cryptd pcspkr lpc_ich mfd_core ata_generic pata_acpi pcc_cpufreq xts cbc sha256_generic ixgb ixgbe tulip cxgb3 cxgb mdio cxgb4 vxge bonding vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 tg3 sky2 r8169 pcnet32 mii igb ptp pps_core dca i2c_algo_bit i2c_core e1000 bnx2 atl1c msdos fat configfs cramfs squashfs fuse xfs nfs lockd grace sunrpc fscache jfs reiserfs btrfs zstd_decompress zstd_compress xxhash ext4 jbd2 ext2 mbcache linear raid10 raid1 raid0 dm_zero dm_verity reed_solomon dm_thin_pool dm_switch dm_snapshot dm_raid raid456 async_raid6_recov async_memcpy async_pq raid6_pq dm_mirror dm_region_hash dm_log_writes dm_log_userspace dm_log dm_integrity async_xor async_tx xor dm_flakey dm_era dm_delay dm_crypt dm_cache_smq dm_cache dm_persistent_data
kernel:  libcrc32c dm_bufio dm_bio_prison dm_mod dax firewire_core crc_itu_t sl811_hcd xhci_pci xhci_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm aacraid sx8 hpsa 3w_9xxx 3w_xxxx 3w_sas mptsas scsi_transport_sas mptfc scsi_transport_fc mptspi mptscsih mptbase imm parport sym53c8xx initio arcmsr aic7xxx aic79xx scsi_transport_spi sr_mod cdrom sg sd_mod pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pata_serverworks pata_oldpiix pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x
kernel:  pata_sil680 pata_pdc2027x nvme nvme_core virtio_net virtio_crypto crypto_engine virtio_mmio virtio_pci virtio_balloon virtio_rng virtio_console virtio_blk virtio_scsi virtio_ring virtio
kernel: CPU: 0 PID: 1444 Comm: kworker/u24:3 Tainted: P           OE   4.14.83-gentoo #1
kernel: Hardware name: System manufacturer System Product Name/P9X79 PRO, BIOS 3305 12/25/2012
kernel: Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs]
kernel: task: ffff97cd612ccbc0 task.stack: ffffa2d5c2908000
kernel: RIP: 0010:btrfs_get_extent_inline_ref_type+0x76/0xf0 [btrfs]
kernel: RSP: 0018:ffffa2d5c290baf8 EFLAGS: 00010282
kernel: RAX: 000000000000004e RBX: 00000000000000b6 RCX: 0000000000000006
kernel: RDX: 0000000000000007 RSI: 0000000000000046 RDI: ffff97cdaf215550
kernel: RBP: ffff97cda2c6fc08 R08: 0000000000000001 R09: 0000000000000669
kernel: R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000001
kernel: R13: 0000000000003d84 R14: 0000000000003d84 R15: 0000000000003d8d
kernel: FS:  0000000000000000(0000) GS:ffff97cdaf200000(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 000000c42072a000 CR3: 00000001b020a002 CR4: 00000000000606f0
kernel: Call Trace:
kernel:  lookup_inline_extent_backref+0x31a/0x5e0 [btrfs]
kernel:  ? set_extent_bit+0x19/0x20 [btrfs]
kernel:  insert_inline_extent_backref+0x44/0xc0 [btrfs]
kernel:  __btrfs_inc_extent_ref.isra.22+0x6b/0x230 [btrfs]
kernel:  __btrfs_run_delayed_refs+0x6dd/0x1230 [btrfs]
kernel:  ? __switch_to_asm+0x40/0x70
kernel:  btrfs_run_delayed_refs+0x7e/0x260 [btrfs]
kernel:  delayed_ref_async_start+0x8d/0xa0 [btrfs]
kernel:  btrfs_scrubparity_helper+0x72/0x2d0 [btrfs]
kernel:  process_one_work+0x1ca/0x3c0
kernel:  worker_thread+0x47/0x3f0
kernel:  kthread+0xfc/0x130
kernel:  ? process_one_work+0x3c0/0x3c0
kernel:  ? kthread_create_on_node+0x40/0x40
kernel:  ret_from_fork+0x3a/0x50
kernel: Code: 00 00 00 74 33 81 fb b2 00 00 00 74 2b 48 89 ef e8 d0 e1 00 00 48 8b 7d 18 48 8b 55 00 89 d9 48 c7 c6 a8 27 d2 c0 e8 ca de fe ff <0f> 0b 31 db 89 d8 5b 5d 41 5c 41 5d c3 41 83 fc 01 74 35 41 83 
kernel: ---[ end trace fc99e0a359d12e2e ]---
kernel: BTRFS: Transaction aborted (error -22)
kernel: ------------[ cut here ]------------
kernel: WARNING: CPU: 0 PID: 1444 at fs/btrfs/extent-tree.c:3089 btrfs_run_delayed_refs+0x24c/0x260 [btrfs]
kernel: Modules linked in: xt_nat veth uinput nfsv3 rpcsec_gss_krb5 nfsv4 ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc ipt_REJECT nf_reject_ipv4 xt_multiport iptable_filter ip_tables rfcomm bnep autofs4 nfsd auth_rpcgss nfs_acl ipv6 crc_ccitt nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) x86_pkg_temp_thermal coretemp kvm_intel kvm drm_kms_helper btusb snd_hda_codec_hdmi drm syscopyarea sysfillrect btrtl btbcm btintel bluetooth sysimgblt fb_sys_fops ecdh_generic rfkill snd_hda_codec_realtek snd_hda_codec_generic e1000e irqbypass snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep iTCO_wdt snd_pcm snd_timer snd soundcore iTCO_vendor_support crc32c_intel
kernel:  wmi_bmof ghash_clmulni_intel mxm_wmi wmi cryptd pcspkr lpc_ich mfd_core ata_generic pata_acpi pcc_cpufreq xts cbc sha256_generic ixgb ixgbe tulip cxgb3 cxgb mdio cxgb4 vxge bonding vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 tg3 sky2 r8169 pcnet32 mii igb ptp pps_core dca i2c_algo_bit i2c_core e1000 bnx2 atl1c msdos fat configfs cramfs squashfs fuse xfs nfs lockd grace sunrpc fscache jfs reiserfs btrfs zstd_decompress zstd_compress xxhash ext4 jbd2 ext2 mbcache linear raid10 raid1 raid0 dm_zero dm_verity reed_solomon dm_thin_pool dm_switch dm_snapshot dm_raid raid456 async_raid6_recov async_memcpy async_pq raid6_pq dm_mirror dm_region_hash dm_log_writes dm_log_userspace dm_log dm_integrity async_xor async_tx xor dm_flakey dm_era dm_delay dm_crypt dm_cache_smq dm_cache dm_persistent_data
kernel:  libcrc32c dm_bufio dm_bio_prison dm_mod dax firewire_core crc_itu_t sl811_hcd xhci_pci xhci_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm aacraid sx8 hpsa 3w_9xxx 3w_xxxx 3w_sas mptsas scsi_transport_sas mptfc scsi_transport_fc mptspi mptscsih mptbase imm parport sym53c8xx initio arcmsr aic7xxx aic79xx scsi_transport_spi sr_mod cdrom sg sd_mod pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pata_serverworks pata_oldpiix pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x
kernel:  pata_sil680 pata_pdc2027x nvme nvme_core virtio_net virtio_crypto crypto_engine virtio_mmio virtio_pci virtio_balloon virtio_rng virtio_console virtio_blk virtio_scsi virtio_ring virtio
kernel: CPU: 0 PID: 1444 Comm: kworker/u24:3 Tainted: P        W  OE   4.14.83-gentoo #1
kernel: Hardware name: System manufacturer System Product Name/P9X79 PRO, BIOS 3305 12/25/2012
kernel: Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs]
kernel: task: ffff97cd612ccbc0 task.stack: ffffa2d5c2908000
kernel: RIP: 0010:btrfs_run_delayed_refs+0x24c/0x260 [btrfs]
kernel: RSP: 0018:ffffa2d5c290bdb8 EFLAGS: 00010296
kernel: RAX: 0000000000000026 RBX: ffff97cbf45b0e88 RCX: ffffffffac24dca8
kernel: RDX: 0000000000000001 RSI: 0000000000000046 RDI: ffffffffac8243ac
kernel: RBP: ffff97cda07b0000 R08: 0000000000000001 R09: 0000000000000690
kernel: R10: 0000000000000002 R11: 0000000000000000 R12: 00000000000003fe
kernel: R13: ffff97cd76dea800 R14: 00000000000003fe R15: ffff97ccf9fc33c0
kernel: FS:  0000000000000000(0000) GS:ffff97cdaf200000(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 000000c42072a000 CR3: 00000001b020a002 CR4: 00000000000606f0
kernel: Call Trace:
kernel:  delayed_ref_async_start+0x8d/0xa0 [btrfs]
kernel:  btrfs_scrubparity_helper+0x72/0x2d0 [btrfs]
kernel:  process_one_work+0x1ca/0x3c0
kernel:  worker_thread+0x47/0x3f0
kernel:  kthread+0xfc/0x130
kernel:  ? process_one_work+0x3c0/0x3c0
kernel:  ? kthread_create_on_node+0x40/0x40
kernel:  ret_from_fork+0x3a/0x50
kernel: Code: c7 c6 40 b8 d1 c0 48 89 df 44 89 04 24 e8 d9 36 09 00 44 8b 04 24 eb 8d 44 89 c6 48 c7 c7 d8 27 d2 c0 44 89 04 24 e8 3f ce 62 ea <0f> 0b 44 8b 04 24 eb c4 66 90 66 2e 0f 1f 84 00 00 00 00 00 e8 
kernel: ---[ end trace fc99e0a359d12e2f ]---
kernel: BTRFS: error (device sdc1) in btrfs_run_delayed_refs:3089: errno=-22 unknown
kernel: BTRFS info (device sdc1): forced readonly
kernel: BTRFS error (device sdc1): pending csums is 77824
HIRAKI Hideaki Jan. 17, 2019, 8:35 a.m. UTC | #3
At Tue, 15 Jan 2019 22:53:17 +0900 (JST), HIRAKI Hideaki wrote:
> Dear Qu,
> 
> At Tue, 15 Jan 2019 20:55:38 +0800, Qu Wenruo wrote:
>> On 2019/1/15 7:47, HIRAKI Hideaki wrote:
<snip>
>>> The second question is about btrfs-restore. It doesn't restore subvolumes
>>> even when the destination path is in a BTRFS file system.
>> 
>> I had a plan to support snapshot/subvolume creation for btrfs-restore if
>> destination is btrfs, or supports reflink.
>> 
>> But that feature will be too late for your use case anyway.
>> 
>>> "btrfs restore -l"
>>> is to list subvolumes but the output lacks the path (relative to the top
>>> level subvolume) information.
>> 
>> You could try my experimental patch:
>> https://patchwork.kernel.org/patch/10738583/
>> 
>> It provides kernel equivalent of btrfs-restore, using 'ro,skip_bg' mount
>> option.
>> 
>> If everything goes OK, then you should be able to get 'btrfs subv list'
>> working.
>>
> 
> I'll try this later.

With the patch, 'btrfs subv list' worked! Thank you very much.

As the read-only mount was succeeded, I thought btrfs-send/receive might
be useful, but it didn't work because the subvolume was NOT read-only.
Your plan to improve btrfs-restore is just awesome.

Apparently 7 files (ERROR: cannot map block logical ...) and 88 directories
(Reached the end of the tree searching the directory) couldn't be restored.
I'll move to docker's side to see what were lost.

Regards,

Hideaki

Patch
diff mbox series

--- cmds-restore.c~   2018-11-03 19:06:34.000000000 +0900
+++ cmds-restore.c    2019-01-09 00:34:17.000000000 +0900
@@ -289,7 +289,7 @@  static int copy_one_inline(struct btrfs_
 {
        struct extent_buffer *leaf = path->nodes[0];
        struct btrfs_file_extent_item *fi;
-       char buf[4096];
+       char buf[65536];
        char *outbuf;
        u64 ram_size;
        ssize_t done;
@@ -729,7 +729,7 @@  static int copy_file(struct btrfs_root *
        }
 
        while (1) {
-               if (loops >= 0 && loops++ >= 1024) {
+               if (loops >= 0 && loops++ >= 102400) {
                        enum loop_response resp;
 
                        resp = ask_to_continue(file);
@@ -1007,7 +1007,7 @@  static int search_dir(struct btrfs_root
        }
 
        while (leaf) {
-               if (loops++ >= 1024) {
+               if (loops++ >= 102400) {
                        printf("We have looped trying to restore files in %s "
                               "too many times to be making progress, "
                               "stopping\n", in_dir);