On Mon, Mar 11, 2019 at 10:42:48PM -0700, Darrick J. Wong wrote: > On Tue, Mar 12, 2019 at 01:42:34PM +0800, Zorro Lang wrote: > > On Sun, Dec 23, 2018 at 10:17:21PM +0800, Zorro Lang wrote: > > > If an inode had been in btree format and had a data fork owner change > > > logged (XFS_ILOG_DOWNER), after changing the format to non-btree, will > > > hit an ASSERT in xfs_recover_inode_owner_change() which enforces that > > > if XFS_ILOG_[AD]OWNER is set. > > > > > > Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx> > > > --- > > > > > > This case is written for Eric's patchset: > > > [PATCH 0/2] xfs: swapext replay fixes > > > > > > Thanks for the reproducer which is provided by Eric. I've tested on latest > > > xfs-linux for-next branch with the 2 patches of Eric: > > > # git log --oneline > > > 39a9114528e4 (HEAD -> for-next) xfs: clear XFS_ILOG_[AD]OWNER for non-btree formats > > > 46fe0206d242 xfs: handle bad flags in xfs_recover_inode_owner_change > > > 86d163dbfe2a (tag: xfs-4.21-merge-1, origin/xfs-4.21-merge, origin/for-next) xfs: stringify scrub types in ftrace output > > > ... > > > ... > > > > > > But I still can hit a fs corruption which can't be log replayed[1]. Only > > > "xfs_repair -L" can help to fix that. > > > > Ping .... > > > > Long time passed, but this failure still can be reproduced on latest upstream > > linux kernel(v5.0). > > > > A weird thing is: > > MKFS_OPTIONS="reflink=1,rmapbt=0,finobt=1,crc=1 -i sparse=1" > > MKFS_OPTIONS="reflink=0,rmapbt=0,finobt=1,crc=1 -i sparse=1" > > can reproduce this issue. But > > MKFS_OPTIONS="reflink=1,rmapbt=1,finobt=1,crc=1 -i sparse=1" > > can't. > > > > Can anyone help to take a look at it? > > rmapbt=1 uses a totally different code path in the kernel, which is why > this test doesn't fail in that situation. Hi Darrick, Thanks for your reply, may I ask if there's something wrong on the test case, or it's a real bug? BTW, xfs-linux hasn't merged https://www.spinics.net/lists/linux-xfs/msg24462.html, right? Thanks, Zorro > > --D > > > Thanks, > > Zorro > > > > > > > > Thanks, > > > Zorro > > > > > > [1] > > > # ./check xfs/999 > > > FSTYP -- xfs (non-debug) > > > PLATFORM -- Linux/x86_64 xxx-xxxx-xx 4.20.0-rc6+ > > > MKFS_OPTIONS -- -f -m reflink=1,rmapbt=0,finobt=1,crc=1 -i sparse=1 /dev/mapper/rhel_xxx-xxxx-xx-xfscratch > > > MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /dev/mapper/rhel_xxx-xxxx-xx-xfscratch /mnt/scratch > > > > > > xfs/999 82s ... [failed, exit status 1]- output mismatch (see /root/git/xfstests-zlang/results//xfs/999.out.bad) > > > --- tests/xfs/999.out 2018-12-23 08:27:02.524495164 -0500 > > > +++ /root/git/xfstests-zlang/results//xfs/999.out.bad 2018-12-23 08:58:01.826244128 -0500 > > > @@ -1,2 +1,4 @@ > > > QA output created by 999 > > > -Silence is golden > > > +mount: /mnt/scratch: mount(2) system call failed: Structure needs cleaning. > > > +cycle mount failed > > > +(see /root/git/xfstests-zlang/results//xfs/999.full for details) > > > ... > > > (Run 'diff -u /root/git/xfstests-zlang/tests/xfs/999.out /root/git/xfstests-zlang/results//xfs/999.out.bad' to see the entire diff) > > > Ran: xfs/999 > > > Failures: xfs/999 > > > Failed 1 of 1 tests > > > > > > # dmesg > > > [ 1961.335700] run fstests xfs/999 at 2018-12-23 08:56:53 > > > [ 1962.270422] XFS (dm-5): Unmounting Filesystem > > > [ 1964.097509] XFS (dm-5): Mounting V5 Filesystem > > > [ 1964.217909] XFS (dm-5): Ending clean mount > > > [ 2026.309500] XFS (dm-5): User initiated shutdown received. Shutting down filesystem > > > [ 2026.343161] XFS (dm-5): Unmounting Filesystem > > > [ 2026.420747] XFS (dm-5): Mounting V5 Filesystem > > > [ 2028.557423] XFS (dm-5): Starting recovery (logdev: internal) > > > [ 2029.162746] XFS (dm-5): Corruption warning: Metadata has LSN (-842150451:-842150451) ahead of current LSN (1:785). Please unmount and run xfs_repair (>= v4.3) to resolve. > > > [ 2029.179889] XFS (dm-5): Metadata CRC error detected at xfs_bmbt_read_verify+0x1b/0x2d0 [xfs], xfs_bmbt block 0x5830 > > > [ 2029.191678] XFS (dm-5): Unmount and run xfs_repair > > > [ 2029.197051] XFS (dm-5): First 128 bytes of corrupted metadata buffer: > > > [ 2029.204262] 00000000: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.213220] 00000010: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.222178] 00000020: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.231151] 00000030: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.240107] 00000040: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.249171] 00000050: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.258134] 00000060: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.267083] 00000070: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.282435] XFS (dm-5): Corruption warning: Metadata has LSN (-842150451:-842150451) ahead of current LSN (1:785). Please unmount and run xfs_repair (>= v4.3) to resolve. > > > [ 2029.299516] XFS (dm-5): Metadata CRC error detected at xfs_bmbt_read_verify+0x1b/0x2d0 [xfs], xfs_bmbt block 0x5830 > > > [ 2029.311295] XFS (dm-5): Unmount and run xfs_repair > > > [ 2029.316666] XFS (dm-5): First 128 bytes of corrupted metadata buffer: > > > [ 2029.323887] 00000000: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.332844] 00000010: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.341817] 00000020: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.350776] 00000030: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.359731] 00000040: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.368690] 00000050: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.377648] 00000060: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.386607] 00000070: cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd ................ > > > [ 2029.395599] XFS (dm-5): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x5830 len 8 error 74 > > > [ 2029.499375] XFS (dm-5): log mount/recovery failed: error -117 > > > [ 2029.506425] XFS (dm-5): log mount failed > > > [ 2029.552080] XFS (dm-2): Unmounting Filesystem > > > > > > # xfs_repair /dev/mapper/rhel_xxx-xxxx-xx-xfscratch > > > Phase 1 - find and verify superblock... > > > Phase 2 - using internal log > > > - zero log... > > > ERROR: The filesystem has valuable metadata changes in a log which needs to > > > be replayed. Mount the filesystem to replay the log, and unmount it before > > > re-running xfs_repair. If you are unable to mount the filesystem, then use > > > the -L option to destroy the log and attempt a repair. > > > Note that destroying the log may cause corruption -- please attempt a mount > > > of the filesystem before doing this > > > > > > # mount /dev/mapper/rhel_xxx-xxxx-xx-xfscratch /mnt/scratch > > > mount: /mnt/scratch: mount(2) system call failed: Structure needs cleaning. > > > > > > # xfs_repair -L /dev/mapper/rhel_xxx-xxxx-xx-xfscratch > > > Phase 1 - find and verify superblock... > > > Phase 2 - using internal log > > > - zero log... > > > ALERT: The filesystem has valuable metadata changes in a log which is being > > > destroyed because the -L option was used. > > > - scan filesystem freespace and inode maps... > > > sb_ifree 61, counted 60 > > > sb_fdblocks 22271328, counted 22270327 > > > - found root inode chunk > > > Phase 3 - for each AG... > > > - scan and clear agi unlinked lists... > > > - process known inodes and perform inode discovery... > > > - agno = 0 > > > Metadata CRC error detected at 0x449c9d, xfs_bmbt block 0x5830/0x1000 > > > btree block 0/2822 is suspect, error -74 > > > bad magic # 0xcdcdcdcd in inode 131 (data fork) bmbt block 2822 > > > bad data fork in inode 131 > > > cleared inode 131 > > > - agno = 1 > > > - agno = 2 > > > - agno = 3 > > > - process newly discovered inodes... > > > Phase 4 - check for duplicate blocks... > > > - setting up duplicate extent list... > > > - check for inodes claiming duplicate blocks... > > > - agno = 0 > > > entry "fragfile" in shortform directory 128 references free inode 131 > > > junking entry "fragfile" in directory inode 128 > > > - agno = 1 > > > - agno = 3 > > > - agno = 2 > > > Phase 5 - rebuild AG headers and trees... > > > - reset superblock... > > > Phase 6 - check inode connectivity... > > > - resetting contents of realtime bitmap and summary inodes > > > - traversing filesystem ... > > > - traversal finished ... > > > - moving disconnected inodes to lost+found ... > > > Phase 7 - verify and correct link counts... > > > Metadata corruption detected at 0x449b47, xfs_bmbt block 0x5830/0x1000 > > > libxfs_writebufr: write verifer failed on xfs_bmbt bno 0x5830/0x1000 > > > Maximum metadata LSN (1:237) is ahead of log (1:2). > > > Format log to cycle 4. > > > releasing dirty buffer (bulk) to free list!done > > > > > > > > > > > > tests/xfs/999 | 76 +++++++++++++++++++++++++++++++++++++++++++++++ > > > tests/xfs/999.out | 2 ++ > > > tests/xfs/group | 1 + > > > 3 files changed, 79 insertions(+) > > > create mode 100755 tests/xfs/999 > > > create mode 100644 tests/xfs/999.out > > > > > > diff --git a/tests/xfs/999 b/tests/xfs/999 > > > new file mode 100755 > > > index 00000000..cfe5c4d4 > > > --- /dev/null > > > +++ b/tests/xfs/999 > > > @@ -0,0 +1,76 @@ > > > +#! /bin/bash > > > +# SPDX-License-Identifier: GPL-2.0 > > > +# Copyright (c) 2018 Red Hat Inc. All Rights Reserved. > > > +# > > > +# FS QA Test No. 999 > > > +# > > > +# If an inode had been in btree format and had a data fork owner change > > > +# logged, after changing the format to non-btree, will hit an ASSERT or > > > +# fs corruption. > > > +# > > > +seq=`basename $0` > > > +seqres=$RESULT_DIR/$seq > > > +echo "QA output created by $seq" > > > + > > > +here=`pwd` > > > +tmp=/tmp/$$ > > > +status=1 # failure is the default! > > > +trap "_cleanup; exit \$status" 0 1 2 3 15 > > > + > > > +_cleanup() > > > +{ > > > + cd / > > > + rm -f $tmp.* > > > +} > > > + > > > +# get standard environment, filters and checks > > > +. ./common/rc > > > +. ./common/filter > > > + > > > +# remove previous $seqres.full before test > > > +rm -f $seqres.full > > > + > > > +# real QA test starts here > > > + > > > +# Modify as appropriate. > > > +_supported_fs generic > > > +_supported_os Linux > > > +_require_scratch > > > + > > > +_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs >/dev/null > > > +. $tmp.mkfs > > > + > > > +_scratch_mount > > > +localfile=$SCRATCH_MNT/fragfile > > > + > > > +# Try to create a file with 1024 * (3 blocks + 1 hole): > > > +# +----------+--------+-------+----------+--------+ > > > +# | 3 blocks | 1 hole | ... | 3 blocks | 1 hole | > > > +# +----------+--------+-------+----------+--------+ > > > +# > > > +# The number of extents we can get maybe more or less than 1024, this method > > > +# just to get a btree inode format. > > > +filesize=$((dbsize * 1024 * 4)) > > > +for i in `seq $filesize -$dbsize 0`; do > > > + if [ $((i % (3 * dbsize))) -eq 0 ]; then > > > + continue > > > + fi > > > + $XFS_IO_PROG -f -d -c "pwrite $i $dbsize" $localfile >> $seqres.full > > > +done > > > + > > > +# Make a data fork owner change log > > > +$XFS_FSR_PROG -v -d $localfile >> $seqres.full 2>&1 > > > + > > > +# Truncate the file to 0, and change the inode format to extent, then shutdown > > > +# the fs to keep the XFS_ILOG_DOWNER flag > > > +$XFS_IO_PROG -t -x -c "pwrite 0 $dbsize" \ > > > + -c "fsync" \ > > > + -c "shutdown" $localfile >> $seqres.full > > > + > > > +# Cycle mount, to replay the log > > > +_scratch_cycle_mount > > > + > > > +echo "Silence is golden" > > > +# success, all done > > > +status=0 > > > +exit > > > diff --git a/tests/xfs/999.out b/tests/xfs/999.out > > > new file mode 100644 > > > index 00000000..3b276ca8 > > > --- /dev/null > > > +++ b/tests/xfs/999.out > > > @@ -0,0 +1,2 @@ > > > +QA output created by 999 > > > +Silence is golden > > > diff --git a/tests/xfs/group b/tests/xfs/group > > > index dfaae2bc..9171144e 100644 > > > --- a/tests/xfs/group > > > +++ b/tests/xfs/group > > > @@ -496,3 +496,4 @@ > > > 496 dangerous_fuzzers dangerous_scrub dangerous_repair > > > 497 dangerous_fuzzers dangerous_scrub dangerous_online_repair > > > 498 dangerous_fuzzers dangerous_norepair > > > +999 auto quick > > > -- > > > 2.17.2 > > >
