On Thu, Jun 6, 2024 at 9:54 AM Ryan Sullivan rysulliv@redhat.com wrote:
Define a maximum allowable number of pids that can be livepatched in test-syscall.sh as with extremely large machines the output from a large number of processes overflows the dev/kmsg "expect" buffer in the "check_result" function and causes a false error.
Reported-by: CKI Project cki-project@redhat.com Signed-off-by: Ryan Sullivan rysulliv@redhat.com
tools/testing/selftests/livepatch/test-syscall.sh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/livepatch/test-syscall.sh b/tools/testing/selftests/livepatch/test-syscall.sh index b76a881d4013..289eb7d4c4b3 100755 --- a/tools/testing/selftests/livepatch/test-syscall.sh +++ b/tools/testing/selftests/livepatch/test-syscall.sh @@ -15,7 +15,10 @@ setup_config
start_test "patch getpid syscall while being heavily hammered"
-for i in $(seq 1 $(getconf _NPROCESSORS_ONLN)); do +NPROC=$(getconf _NPROCESSORS_ONLN) +MAXPROC=128
+for i in $(seq 1 $(($NPROC < $MAXPROC ? $NPROC : $MAXPROC))); do ./test_klp-call_getpid & pids[$i]="$!" done -- 2.44.0
Acked-by: Joel Savitz jsavitz@redhat.com