lkml.org 
[lkml]   [2020]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH tip/core/rcu 02/18] rcutorture: Make kvm-recheck-rcu.sh handle truncated lines
Date
From: "Paul E. McKenney" <paulmck@kernel.org>

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>
---
.../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
--
2.9.5
\
 
 \ /
  Last update: 2020-04-15 19:35    [W:1.046 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site