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tests: kill debugfs on interrupted MMP test

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If the f_mmp test is interrupted during its test run, then it can
leave debugfs busy-looping in the background.  Since f_mmp is a
relatively long-running test, and is likely to be running during
a parallel test run, this can happen fairly often.

Set a signal trap for the f_mmp test script being killed, so that
the background debugfs command will always be killed by the test.

Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Andreas Dilger 2012-09-10 09:04:47 +00:00 committed by Theodore Ts'o
parent a3e87bcc32
commit 12f48b0caa
1 changed files with 9 additions and 1 deletions
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10
tests/f_mmp/script
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@ -19,10 +19,18 @@ if [ "$status" != 0 ] ; then
return $status
fi
kill_debugfs() {
trap 0
PID=$(ps -o pid,command | grep -v awk |
awk "/debugfs -w $TMPFILE/ { print \$1 }")
[ "x$PID" != "x" ] && kill -9 $PID
}
# this will cause debugfs to create the $test_name.mark file once it has
# passed the MMP startup, then continue reading input until it is killed
MARKFILE=$test_name.new
rm -f $MARKFILE
trap kill_debugfs EXIT
echo "set mmp sequence to EXT2_MMP_SEQ_FSCK..." >> $test_name.log
( { echo dump_mmp; echo "dump_inode <2> $MARKFILE"; cat /dev/zero; } |
$DEBUGFS -w $TMPFILE >> $test_name.log 2>&1 & ) > /dev/null 2>&1 &
@ -32,7 +40,7 @@ while [ ! -e $MARKFILE ]; do
done
rm -f $MARKFILE
echo "kill debugfs abruptly (simulates e2fsck failure) ..." >> $test_name.log
killall -9 debugfs >> $test_name.log
kill_debugfs
echo "e2fsck (should fail mmp_seq = EXT2_MMP_SEQ_FSCK) ..." >> $test_name.log