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torture: Make kvm-test-1-run-qemu.sh check for reboot loops

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It turns out that certain types of early boot bugs can result in reboot
loops, even within a guest OS running under qemu/KVM.  This commit
therefore upgrades the kvm-test-1-run-qemu.sh script's hang-detection
heuristics to detect such situations and to terminate the run when
they occur.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2021-07-09 17:13:34 -07:00
parent 5f33809ec2
commit 06ca91448f
1 changed files with 5 additions and 1 deletions
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6
tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh
View file

@ -159,9 +159,13 @@ then
then
last_ts=0
fi
if test "$newline" != "$oldline" && test "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE))
if test "$newline" != "$oldline" && test "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE)) && test "$last_ts" -gt "$TORTURE_SHUTDOWN_GRACE"
then
must_continue=yes
if test $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
then
echo Continuing at console.log time $last_ts \"`tail -n 1 $resdir/console.log`\" `date`
fi
fi
if test $must_continue = no && test $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
then