diff options
| author | Kees Cook <keescook@chromium.org> | 2020-06-25 13:37:03 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-19 08:23:49 +0200 |
| commit | ccc2f5bfeefe862a731dd6956bfef9b3aebca5bb (patch) | |
| tree | 91fab8834a28156a8d03d6f3daa944b3e589c132 | |
| parent | 1e84529a93020c8b5cf431af3a5e427a3216f7ec (diff) | |
selftests/lkdtm: Reset WARN_ONCE to avoid false negatives
[ Upstream commit 4fccc8c0ff740e62343b6de38426a48b345b95f4 ]
Since we expect to see warnings every time for many tests, just reset
the WARN_ONCE flags each time the script runs.
Fixes: 46d1a0f03d66 ("selftests/lkdtm: Add tests for LKDTM targets")
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20200625203704.317097-4-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rwxr-xr-x | tools/testing/selftests/lkdtm/run.sh | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/testing/selftests/lkdtm/run.sh b/tools/testing/selftests/lkdtm/run.sh index ee64ff8df8f4..8383eb89d88a 100755 --- a/tools/testing/selftests/lkdtm/run.sh +++ b/tools/testing/selftests/lkdtm/run.sh @@ -8,6 +8,7 @@ # set -e TRIGGER=/sys/kernel/debug/provoke-crash/DIRECT +CLEAR_ONCE=/sys/kernel/debug/clear_warn_once KSELFTEST_SKIP_TEST=4 # Verify we have LKDTM available in the kernel. @@ -67,6 +68,11 @@ cleanup() { } trap cleanup EXIT +# Reset WARN_ONCE counters so we trip it each time this runs. +if [ -w $CLEAR_ONCE ] ; then + echo 1 > $CLEAR_ONCE +fi + # Save existing dmesg so we can detect new content below dmesg > "$DMESG" |