diff options
| author | Kees Cook <keescook@chromium.org> | 2021-10-22 15:38:25 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-25 09:13:46 +0200 |
| commit | 149538cd55cad138b6eaa4dc4735c28f53eb5d32 (patch) | |
| tree | 1d65886682cb6dca438546bebd49385426c11c6f /tools/testing/selftests/lkdtm | |
| parent | 0e53a9e038d4ac20a3a6bab68cfc9517c316c152 (diff) | |
selftests/lkdtm: Add way to repeat a test
Some LKDTM tests need to be run more than once (usually to setup and
then later trigger). Until now, the only case was the SOFT_LOCKUP test,
which wasn't useful to run in the bulk selftests. The coming stack canary
checking needs to run twice, so support this with a new test output prefix
"repeat".
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20211022223826.330653-2-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/lkdtm')
| -rwxr-xr-x | tools/testing/selftests/lkdtm/run.sh | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/testing/selftests/lkdtm/run.sh b/tools/testing/selftests/lkdtm/run.sh index e95e79bd3126..95e904959207 100755 --- a/tools/testing/selftests/lkdtm/run.sh +++ b/tools/testing/selftests/lkdtm/run.sh @@ -56,8 +56,14 @@ if echo "$test" | grep -q '^#' ; then fi # If no expected output given, assume an Oops with back trace is success. +repeat=1 if [ -z "$expect" ]; then expect="call trace:" +else + if echo "$expect" | grep -q '^repeat:' ; then + repeat=$(echo "$expect" | cut -d' ' -f1 | cut -d: -f2) + expect=$(echo "$expect" | cut -d' ' -f2-) + fi fi # Prepare log for report checking @@ -83,7 +89,9 @@ dmesg > "$DMESG" # the signal that killed the subprocess, we must ignore the failure and # continue. However we don't silence stderr since there might be other # useful details reported there in the case of other unexpected conditions. -echo "$test" | cat >"$TRIGGER" || true +for i in $(seq 1 $repeat); do + echo "$test" | cat >"$TRIGGER" || true +done # Record and dump the results dmesg | comm --nocheck-order -13 "$DMESG" - > "$LOG" || true |