| Message ID | 1553759339-2206-1-git-send-email-xuyang2018.jy@cn.fujitsu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | common/populate: decrease the step of rm file | expand |
On Thu, Mar 28, 2019 at 03:48:59PM +0800, Yang Xu wrote: > Now that we have allocated 2*4096*64/16(32768) inodes after "Inode btree", > but the step of rm file is too large to create enough free inodes in agi. > So the freecount is not enough large to make free_level gt 1 and call > _scratch__populate on xfs will report the following failure(such as xfs/083): > > Failed to create fino of sufficient height! > > By decreasing the step of rm file, xfs/083 will pass. > > Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com> I may need some help from Darrick (cc'ed) on this one :) Thanks, Eryu > --- > common/populate | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/common/populate b/common/populate > index 4fa118f0..7403dec3 100644 > --- a/common/populate > +++ b/common/populate > @@ -271,7 +271,7 @@ _scratch_xfs_populate() { > touch "${dir}/${f}" > done > > - seq 0 "$((ino_per_rec + 1))" "${nr}" | while read f; do > + seq 0 2 "${nr}" | while read f; do > rm -f "${dir}/${f}" > done > > -- > 2.18.1 > > >
On Mon, Apr 01, 2019 at 07:14:21PM +0800, Eryu Guan wrote: > On Thu, Mar 28, 2019 at 03:48:59PM +0800, Yang Xu wrote: > > Now that we have allocated 2*4096*64/16(32768) inodes after "Inode btree", > > but the step of rm file is too large to create enough free inodes in agi. > > So the freecount is not enough large to make free_level gt 1 and call > > _scratch__populate on xfs will report the following failure(such as xfs/083): > > > > Failed to create fino of sufficient height! > > > > By decreasing the step of rm file, xfs/083 will pass. > > > > Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com> > > I may need some help from Darrick (cc'ed) on this one :) I'll have a look tomorrow. --D > Thanks, > Eryu > > > --- > > common/populate | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/common/populate b/common/populate > > index 4fa118f0..7403dec3 100644 > > --- a/common/populate > > +++ b/common/populate > > @@ -271,7 +271,7 @@ _scratch_xfs_populate() { > > touch "${dir}/${f}" > > done > > > > - seq 0 "$((ino_per_rec + 1))" "${nr}" | while read f; do > > + seq 0 2 "${nr}" | while read f; do > > rm -f "${dir}/${f}" > > done > > > > -- > > 2.18.1 > > > > > >
On Thu, Mar 28, 2019 at 03:48:59PM +0800, Yang Xu wrote: > Now that we have allocated 2*4096*64/16(32768) inodes after "Inode btree", > but the step of rm file is too large to create enough free inodes in agi. > So the freecount is not enough large to make free_level gt 1 and call > _scratch__populate on xfs will report the following failure(such as xfs/083): > > Failed to create fino of sufficient height! > > By decreasing the step of rm file, xfs/083 will pass. Hmm, what are MOUNT_OPTS and MKFS_OPTIONS when this happens? Are you running on top of some kind of RAID or 4k sector disk or something? I think this patch looks ok but I'm puzzled for why a step of $(ino_per_rec + 1) isn't enough. --D > Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com> > --- > common/populate | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/common/populate b/common/populate > index 4fa118f0..7403dec3 100644 > --- a/common/populate > +++ b/common/populate > @@ -271,7 +271,7 @@ _scratch_xfs_populate() { > touch "${dir}/${f}" > done > > - seq 0 "$((ino_per_rec + 1))" "${nr}" | while read f; do > + seq 0 2 "${nr}" | while read f; do > rm -f "${dir}/${f}" > done > > -- > 2.18.1 > > >
On 2019/4/4 6:43, Darrick J. Wong wrote: > On Thu, Mar 28, 2019 at 03:48:59PM +0800, Yang Xu wrote: >> Now that we have allocated 2*4096*64/16(32768) inodes after "Inode btree", >> but the step of rm file is too large to create enough free inodes in agi. >> So the freecount is not enough large to make free_level gt 1 and call >> _scratch__populate on xfs will report the following failure(such as xfs/083): >> >> Failed to create fino of sufficient height! >> >> By decreasing the step of rm file, xfs/083 will pass. > Hmm, what are MOUNT_OPTS and MKFS_OPTIONS when this happens? Are you > running on top of some kind of RAID or 4k sector disk or something? The mkfs and mount option as below: MKFS_OPTIONS -- -f -bsize=4096 /dev/sda11 MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /dev/sda11 /mnt/xfstests/scratch I run this case on anordinary disk, in xfs/083.full, the disk information as below: meta-data=/dev/sda11 isize=512 agcount=4, agsize=1310720 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=1, sparse=1, rmapbt=0 = reflink=1 data = bsize=4096 blocks=5242880, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0, ftype=1 log =internal log bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 + populate fs image MOUNT_OPTIONS = -o usrquota,grpquota,prjquota fdisk -l /dev/sda Disk /dev/sda: 298.1 GiB, 320072933376 bytes, 625142448 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x00039ec7 /dev/sda11 553664512 595607551 41943040 20G 83 Linux > I think this patch looks ok but I'm puzzled for why a step of > $(ino_per_rec + 1) isn't enough. > > --D Hi Darrick Sorry, I am not aware that the count mechanism of agi_free_level. IMO, agi_free_count achives a threshold that current free inode btree level can notstore free inode information(I want to search the threshold in kernel,but fail). Then, free_level will add. on my machine, I decrease the step. When the value of step is 2,4,8,16, the free count becomes larger and the free_level turns into 2. a step of $(ino_per_rec + 1) isn't enough. It maynot fill up current agi_free_level because it doesn't create enough free inodes (allocat,free,not unused inodes). Thanks, Yang Xu >> Signed-off-by: Yang Xu<xuyang2018.jy@cn.fujitsu.com> >> --- >> common/populate | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/common/populate b/common/populate >> index 4fa118f0..7403dec3 100644 >> --- a/common/populate >> +++ b/common/populate >> @@ -271,7 +271,7 @@ _scratch_xfs_populate() { >> touch "${dir}/${f}" >> done >> >> - seq 0 "$((ino_per_rec + 1))" "${nr}" | while read f; do >> + seq 0 2 "${nr}" | while read f; do >> rm -f "${dir}/${f}" >> done >> >> -- >> 2.18.1 >> >> >> > >
On Thu, Apr 04, 2019 at 02:30:09PM +0800, xuyang wrote: > On 2019/4/4 6:43, Darrick J. Wong wrote: > > On Thu, Mar 28, 2019 at 03:48:59PM +0800, Yang Xu wrote: > > > Now that we have allocated 2*4096*64/16(32768) inodes after "Inode btree", > > > but the step of rm file is too large to create enough free inodes in agi. > > > So the freecount is not enough large to make free_level gt 1 and call > > > _scratch__populate on xfs will report the following failure(such as xfs/083): > > > > > > Failed to create fino of sufficient height! > > > > > > By decreasing the step of rm file, xfs/083 will pass. > > Hmm, what are MOUNT_OPTS and MKFS_OPTIONS when this happens? Are you > > running on top of some kind of RAID or 4k sector disk or something? > The mkfs and mount option as below: > MKFS_OPTIONS -- -f -bsize=4096 /dev/sda11 > MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /dev/sda11 /mnt/xfstests/scratch > > I run this case on anordinary disk, in xfs/083.full, the disk information as below: > meta-data=/dev/sda11 isize=512 agcount=4, agsize=1310720 blks > = sectsz=512 attr=2, projid32bit=1 > = crc=1 finobt=1, sparse=1, rmapbt=0 > = reflink=1 > data = bsize=4096 blocks=5242880, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0, ftype=1 > log =internal log bsize=4096 blocks=2560, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > + populate fs image > MOUNT_OPTIONS = -o usrquota,grpquota,prjquota > > fdisk -l /dev/sda > Disk /dev/sda: 298.1 GiB, 320072933376 bytes, 625142448 sectors > Units: sectors of 1 * 512 = 512 bytes > Sector size (logical/physical): 512 bytes / 512 bytes > I/O size (minimum/optimal): 512 bytes / 512 bytes > Disklabel type: dos > Disk identifier: 0x00039ec7 > > /dev/sda11 553664512 595607551 41943040 20G 83 Linux > > > > I think this patch looks ok but I'm puzzled for why a step of > > $(ino_per_rec + 1) isn't enough. > > > > --D > > Hi Darrick > > Sorry, I am not aware that the count mechanism of agi_free_level. IMO, agi_free_count achives a > threshold that current free inode btree level can notstore free inode information(I want to search the threshold in kernel,but fail). > Then, free_level will add. > > on my machine, I decrease the step. When the value of step is 2,4,8,16, the free count becomes larger > and the free_level turns into 2. > > a step of $(ino_per_rec + 1) isn't enough. It maynot fill up current agi_free_level because it doesn't create enough free inodes > (allocat,free,not unused inodes). Ok, seems fine to me after a few days of playing around with it... Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> --D > > Thanks, > Yang Xu > > > > Signed-off-by: Yang Xu<xuyang2018.jy@cn.fujitsu.com> > > > --- > > > common/populate | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/common/populate b/common/populate > > > index 4fa118f0..7403dec3 100644 > > > --- a/common/populate > > > +++ b/common/populate > > > @@ -271,7 +271,7 @@ _scratch_xfs_populate() { > > > touch "${dir}/${f}" > > > done > > > > > > - seq 0 "$((ino_per_rec + 1))" "${nr}" | while read f; do > > > + seq 0 2 "${nr}" | while read f; do > > > rm -f "${dir}/${f}" > > > done > > > > > > -- > > > 2.18.1 > > > > > > > > > > > > > > > >
diff --git a/common/populate b/common/populate index 4fa118f0..7403dec3 100644 --- a/common/populate +++ b/common/populate @@ -271,7 +271,7 @@ _scratch_xfs_populate() { touch "${dir}/${f}" done - seq 0 "$((ino_per_rec + 1))" "${nr}" | while read f; do + seq 0 2 "${nr}" | while read f; do rm -f "${dir}/${f}" done
Now that we have allocated 2*4096*64/16(32768) inodes after "Inode btree", but the step of rm file is too large to create enough free inodes in agi. So the freecount is not enough large to make free_level gt 1 and call _scratch__populate on xfs will report the following failure(such as xfs/083): Failed to create fino of sufficient height! By decreasing the step of rm file, xfs/083 will pass. Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com> --- common/populate | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)