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authorPaul E. McKenney <paulmck@kernel.org>2020-02-14 14:43:44 -0800
committerPaul E. McKenney <paulmck@kernel.org>2020-04-27 11:05:13 -0700
commitb3578186b28da4ed5d0852ec69c13a7bce15b5fd (patch)
tree89e9c7b0a086f2cd4103f8042fee375d072e04f1 /tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
parentrcutorture: Add KCSAN stubs (diff)
downloadlinux-dev-b3578186b28da4ed5d0852ec69c13a7bce15b5fd.tar.xz
linux-dev-b3578186b28da4ed5d0852ec69c13a7bce15b5fd.zip
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>
Diffstat (limited to 'tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh')
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh16
1 files changed, 15 insertions, 1 deletions
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
index 9d9a41625dd9..1706cd4466b4 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