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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eryu Guan
6c5493bd58
ext4/305 sleeps 3 minutes and does mount/umount loop in background, which produces lots of logs in dmesg and 3 minutes is not necessary. Ted pointed out that 30 mount/umount cycles is enough to crash a buggy kernel, so just limit the mount/umount loop to reduce the runtime. And now the runtime is about 2s. Reported-by: Theodore Ts'o <tytso@mit.edu> Suggested-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
74 lines
1.8 KiB
Bash
Executable File
74 lines
1.8 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 305
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#
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# Regression test for commit:
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# 9559996 ext4: remove mb_groups before tearing down the buddy_cache
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2013 Red Hat, Inc. 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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#
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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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PIDS=""
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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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kill $PIDS >/dev/null 2>&1
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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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# real QA test starts here
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_supported_fs ext4
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_supported_os Linux
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_require_scratch
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rm -f $seqres.full
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echo "Silence is golden"
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DEV_BASENAME=$(_short_dev $SCRATCH_DEV)
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echo "Start test on device $SCRATCH_DEV, basename $DEV_BASENAME" >$seqres.full
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_scratch_mkfs >>$seqres.full 2>&1
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while true; do
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cat /proc/fs/ext4/$DEV_BASENAME/mb_groups > /dev/null 2>&1
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done &
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PIDS=$!
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# 30 loops is enough to crash a buggy kernel
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i=0
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while [ $i -lt 30 ]; do
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mount $SCRATCH_DEV $SCRATCH_MNT
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umount $SCRATCH_DEV
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let i=i+1
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done
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# no BUG_ON, all done
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kill $PIDS >/dev/null 2>&1
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wait
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status=0
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exit
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