mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Zhihao Cheng
b7cecbea22
Calling src/<file> without path '$here' may cause the problem that
the file cannot be found.
For example, Running generic/192 with overlayfs(Let ubifs as base
fs) yields the following output:
generic/192 - output mismatch
QA output created by 192
sleep for 5 seconds
test
+./common/rc: line 316: src/t_dir_type: No such file or directory
delta1 is in range
delta2 is in range
...
When the use case fails, the call stack in generic/192 is:
local unknowns=$(src/t_dir_type $dir u | wc -l) common/rc
_supports_filetype common/rc
_overlay_mount common/overlay
_overlay_test_mount common/overlay
_test_mount common/rc
_test_cycle_mount generic/192
Before _test_cycle_mount() being invoked, generic/192 executed 'cd
/' to change work dir from 'xfstests-dev' to '/', so src/t_dir_type
was not found.
[Eryu: some tests run src/<file> as regular user, don't add $here
prefix in such case, as a regular user may have no search permission
on $here]
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
106 lines
2.8 KiB
Bash
Executable File
106 lines
2.8 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2017 Red Hat, Inc. All Rights Reserved.
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#
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# FS QA Test 294
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#
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# Test readdir on fragmented multi-fsb dir blocks
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#
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# If the readahead map ends with a partial multi-fsb dir
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# block, the loop at the end of xfs_dir2_leaf_readbuf() may
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# walk off the end of the mapping array, read garbage,
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# corrupt the loop control counter, and never return.
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#
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# Failure is a hang; KASAN should also catch this.
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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 -f $tmp.*
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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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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs xfs
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_supported_os Linux
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_require_scratch
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_require_test_program "punch-alternating"
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_require_xfs_io_command "falloc"
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_require_xfs_io_command "fpunch"
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# We want to mkfs with a very specific geometry
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MKFS_OPTIONS=""
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_scratch_mkfs "-d size=512m -n size=8192 -i size=1024" >> $seqres.full 2>&1 \
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|| _fail "mkfs failed"
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_scratch_mount
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# Make a ton of mostly-empty inode clusters so we can always
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# make more inodes
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mkdir $SCRATCH_MNT/tmp
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for I in `seq 1 10000`; do touch $SCRATCH_MNT/tmp/$I; done
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# These mostly-empty clusters will live here:
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mkdir $SCRATCH_MNT/clusters
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for I in `seq 1 32 10000`; do
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mv $SCRATCH_MNT/tmp/$I $SCRATCH_MNT/clusters;
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done
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rm -rf $SCRATCH_MNT/tmp
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# Make our test dir with a couple blocks, should be contiguous
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mkdir $SCRATCH_MNT/testdir
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# roughly 20 chars per file
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for I in `seq 1 100`; do
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touch $SCRATCH_MNT/testdir/12345678901234567890$I;
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done
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# File to fragment:
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$XFS_IO_PROG -f -c "falloc 0 70m" $SCRATCH_MNT/fragfile ||
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_fail "Could not allocate space"
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# Now completely fragment freespace.
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# Consume most of it:
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space=$(stat -f -c '%f * %S * 95 / 100' $SCRATCH_MNT | $BC_PROG)
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$XFS_IO_PROG -f -c "falloc 0 $space" $SCRATCH_MNT/fillfile ||
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_fail "Could not allocate space"
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df -h $SCRATCH_MNT >> $seqres.full 2>&1
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# Fill remaining space; let this run to failure
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dd if=/dev/zero of=$SCRATCH_MNT/spacefile1 oflag=direct >> $seqres.full 2>&1
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# Fragment our all-consuming file
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$here/src/punch-alternating $SCRATCH_MNT/fragfile >> $seqres.full 2>&1
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# Punching might have freed up large-ish swaths of metadata
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# Consume hopefully any remaining contiguous freespace
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# (and then some for good measure)
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dd conv=fsync if=/dev/zero of=$SCRATCH_MNT/spacefile2 bs=1M count=64 >> $seqres.full 2>&1
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# Now populate the directory so that it must allocate these
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# fragmented blocks
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for I in `seq 1 1400`; do
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touch $SCRATCH_MNT/testdir/12345678901234567890$I;
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done
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# Now traverse that ugly thing!
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find $SCRATCH_MNT/testdir | sort | _filter_scratch | md5sum
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status=0
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exit
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