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Subject[tip: core/rcu] rcutorture: Handle non-statistic bang-string error messages
The following commit has been merged into the core/rcu branch of tip:

Commit-ID: 59359e4f2a0906920389ec1e33296ac9a19178ba
Gitweb: https://git.kernel.org/tip/59359e4f2a0906920389ec1e33296ac9a19178ba
Author: Paul E. McKenney <paulmck@kernel.org>
AuthorDate: Sun, 26 Apr 2020 16:51:56 -07:00
Committer: Paul E. McKenney <paulmck@kernel.org>
CommitterDate: Mon, 29 Jun 2020 12:01:44 -07:00

rcutorture: Handle non-statistic bang-string error messages

The current console parsing assumes that console lines containing "!!!"
are statistics lines from which it can parse the number of rcutorture
too-short grace-period failures. This prints confusing output for
other problems, including memory exhaustion. This commit therefore
differentiates between these cases and prints an appropriate error string.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
tools/testing/selftests/rcutorture/bin/parse-console.sh | 18 ++++++--
1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/rcutorture/bin/parse-console.sh b/tools/testing/selftests/rcutorture/bin/parse-console.sh
index 4bf62d7..1c64ca8 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-console.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-console.sh
@@ -44,11 +44,23 @@ then
tail -1 |
awk '
{
- for (i=NF-8;i<=NF;i++)
+ normalexit = 1;
+ for (i=NF-8;i<=NF;i++) {
+ if (i <= 0 || i !~ /^[0-9]*$/) {
+ bangstring = $0;
+ gsub(/^\[[^]]*] /, "", bangstring);
+ print bangstring;
+ normalexit = 0;
+ exit 0;
+ }
sum+=$i;
+ }
}
- END { print sum }'`
- print_bug $title FAILURE, $nerrs instances
+ END {
+ if (normalexit)
+ print sum " instances"
+ }'`
+ print_bug $title FAILURE, $nerrs
exit
fi

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