mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
c4288aec3c
When we're using dm-error to simulate failed devices, we don't really know if the write or the fdatasync is going to receive the EIO. For tests that make a single (failed) write attempt and never retry, it's sufficient to check that the file md5 doesn't change after recovery. For tests that /do/ retry the write, we should capture the entire output and just look for the word error instead of enshrining the exact perror message (filename/function call and everything) in the golden output. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
100 lines
2.5 KiB
Bash
Executable File
100 lines
2.5 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 267
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#
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# Test CoW behavior when the write temporarily fails and we unmount.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -rf $tmp.*
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_dmerror_cleanup
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/reflink
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. ./common/dmerror
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# real QA test starts here
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_supported_os Linux
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_require_scratch_reflink
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_require_cp_reflink
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_require_dm_target error
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rm -f $seqres.full
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echo "Format and mount"
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_scratch_mkfs > $seqres.full 2>&1
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_dmerror_init
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_dmerror_mount >> $seqres.full 2>&1
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testdir=$SCRATCH_MNT/test-$seq
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mkdir $testdir
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blksz=65536
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nr=640
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bufnr=128
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filesize=$((blksz * nr))
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bufsize=$((blksz * bufnr))
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_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
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echo "Create the original files"
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$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $filesize" $testdir/file1 >> $seqres.full
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_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
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_dmerror_unmount
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_dmerror_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file2 | _filter_scratch
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echo "CoW and unmount"
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sync
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_dmerror_load_error_table
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$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 >> $seqres.full 2>&1
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_dmerror_load_working_table
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rm -rf $testdir/file2 >> $seqres.full 2>&1
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_dmerror_unmount
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_dmerror_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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echo "Check for damage"
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_dmerror_unmount
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_dmerror_cleanup
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_repair_scratch_fs >> $seqres.full
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# success, all done
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status=0
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exit
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