From 6387ecbc94bf5ac07239104b84d2304da6e79b51 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Tue, 9 Jun 2020 17:58:30 -0700 Subject: torture: Add a stop-run capability When bisecting RCU issues, it is often the case that the first error in an unsuccessful run will happen quickly, but that a successful run must go on for some time in order to obtain a sufficiently low false-negative error rate. In many cases, a bisection requires multiple concurrent runs, in which case the first failure in any run indicates failure, pure and simple. In such cases, it would speed things up greatly if the first failure terminated all runs. This commit therefore adds scripting that checks for a file named "STOP" in the top-level results directory, terminating the run when it appears. Note that in-progress builds will continue until completion, but future builds and all runs will be cut short. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/bin/jitter.sh | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'tools/testing/selftests/rcutorture/bin/jitter.sh') diff --git a/tools/testing/selftests/rcutorture/bin/jitter.sh b/tools/testing/selftests/rcutorture/bin/jitter.sh index 30cb5b27d32e..188b864bc4bf 100755 --- a/tools/testing/selftests/rcutorture/bin/jitter.sh +++ b/tools/testing/selftests/rcutorture/bin/jitter.sh @@ -46,6 +46,12 @@ do exit 0; fi + # Check for stop request. + if test -f "$TORTURE_STOPFILE" + then + exit 1; + fi + # Set affinity to randomly selected online CPU if cpus=`grep 1 /sys/devices/system/cpu/*/online 2>&1 | sed -e 's,/[^/]*$,,' -e 's/^[^0-9]*//'` -- cgit v1.2.3-59-g8ed1b