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rcutorture: Make kvm-recheck-rcu.sh handle truncated lines

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System hangs or killed rcutorture guest OSes can result in truncated
"Reader Pipe:" lines, which can in turn result in false-positive
reader-batch near-miss warnings.  This commit therefore adjusts the
reader-batch checks to account for possible line truncation.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2020-02-14 14:43:44 -08:00
parent 3b2a473985
commit b3578186b2
1 changed files with 15 additions and 1 deletions
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16
tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
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@ -41,7 +41,21 @@ else
title="$title ($ngpsps/s)"
fi
echo $title $stopstate $fwdprog
nclosecalls=`grep --binary-files=text 'torture: Reader Batch' $i/console.log | tail -1 | awk '{for (i=NF-8;i<=NF;i++) sum+=$i; } END {print sum}'`
nclosecalls=`grep --binary-files=text 'torture: Reader Batch' $i/console.log | tail -1 | \
awk -v sum=0 '
{
for (i = 0; i <= NF; i++) {
sum += $i;
if ($i ~ /Batch:/) {
sum = 0;
i = i + 2;
}
}
}
END {
print sum
}'`
if test -z "$nclosecalls"
then
exit 0