* [tip: core/rcu] rcutorture: Make kvm-recheck-rcu.sh handle truncated lines
@ 2020-05-11 20:59 tip-bot2 for Paul E. McKenney
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From: tip-bot2 for Paul E. McKenney @ 2020-05-11 20:59 UTC (permalink / raw)
To: linux-tip-commits; +Cc: Paul E. McKenney, x86, LKML
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: b3578186b28da4ed5d0852ec69c13a7bce15b5fd
Gitweb: https://git.kernel.org/tip/b3578186b28da4ed5d0852ec69c13a7bce15b5fd
Author: Paul E. McKenney <paulmck@kernel.org>
AuthorDate: Fri, 14 Feb 2020 14:43:44 -08:00
Committer: Paul E. McKenney <paulmck@kernel.org>
CommitterDate: Mon, 27 Apr 2020 11:05:13 -07:00
rcutorture: Make kvm-recheck-rcu.sh handle truncated lines
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>
---
tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh | 16 ++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
index 9d9a416..1706cd4 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
@@ -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
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