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torture: Forgive lengthy trace dumps and preemption

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This commit avoids killing qemu if a trace dump is making progress
or if console log output is continuing and the console log timestamp
does not exceed the total plus grace period.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2016-04-19 16:50:44 -07:00
parent 4e9a073f60
commit 6e8c66c867
1 changed files with 19 additions and 2 deletions
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21
tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
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@ -229,6 +229,7 @@ fi
if test $commandcompleted -eq 0 -a -n "$qemu_pid"
then
echo Grace period for qemu job at pid $qemu_pid
oldline="`tail $resdir/console.log`"
while :
do
kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
@ -238,13 +239,29 @@ then
else
break
fi
if test $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
must_continue=no
newline="`tail $resdir/console.log`"
if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : '
then
must_continue=yes
fi
last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`"
if test -z "last_ts"
then
last_ts=0
fi
if test "$newline" != "$oldline" -a "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE))
then
must_continue=yes
fi
if test $must_continue = no -a $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
then
echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
kill -KILL $qemu_pid
break
fi
sleep 1
oldline=$newline
sleep 10
done
elif test -z "$qemu_pid"
then