mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
26cfcac295
This test tries to make the filesystem go down by setting up dm-error and committing metadata updates. Since the test doesn't remount the fs after it goes down to recover the log, this can result in a dirty log being presented to the post-test filesystem check if the filesystem is xfs and quotas are enabled. Since this is a regression test for a NULL pointer dereference in the kernel after the fs goes down, simply skip the post-test fsck. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
66 lines
1.5 KiB
Bash
Executable File
66 lines
1.5 KiB
Bash
Executable File
#! /bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
# Copyright (c) 2016 Red Hat Inc., All Rights Reserved.
|
|
#
|
|
# FS QA Test 338
|
|
#
|
|
# Test I/O on dm error device.
|
|
#
|
|
# Motivated by an ext4 bug that crashes kernel on error path when trying to
|
|
# update atime.
|
|
#
|
|
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.*
|
|
_dmerror_cleanup
|
|
}
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common/rc
|
|
. ./common/filter
|
|
. ./common/dmerror
|
|
|
|
# remove previous $seqres.full before test
|
|
rm -f $seqres.full
|
|
|
|
# real QA test starts here
|
|
_supported_fs generic
|
|
_supported_os Linux
|
|
_require_scratch_nocheck # fs went down with a dirty log, don't check it
|
|
_require_dm_target error
|
|
# If SCRATCH_DEV is not a valid block device, FSTYP cannot be mkfs'ed either
|
|
_require_block_device $SCRATCH_DEV
|
|
|
|
echo "Silence is golden"
|
|
|
|
_scratch_mkfs >>$seqres.full 2>&1
|
|
_dmerror_init
|
|
|
|
# Use strictatime mount option here to force atime updates, which could help
|
|
# trigger the NULL pointer dereference on ext4 more easily
|
|
_dmerror_mount "-o strictatime"
|
|
_dmerror_load_error_table
|
|
|
|
# flush dmerror block device buffers and drop all caches, force reading from
|
|
# error device
|
|
blockdev --flushbufs $DMERROR_DEV
|
|
echo 3 > /proc/sys/vm/drop_caches
|
|
|
|
# do some test I/O
|
|
ls -l $SCRATCH_MNT >>$seqres.full 2>&1
|
|
$XFS_IO_PROG -fc "pwrite 0 1M" $SCRATCH_MNT/testfile >>$seqres.full 2>&1
|
|
|
|
# no panic no hang, success, all done
|
|
status=0
|
|
exit
|