On 5/29/20 2:03 PM, Kees Cook wrote:
Since we expect to see warnings every time for many tests, just reset the WARN_ONCE flags each time the script runs.
Signed-off-by: Kees Cook keescook@chromium.org
tools/testing/selftests/lkdtm/run.sh | 6 ++++++ 1 file changed, 6 insertions(+)
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"
Acked-by: Shuah Khan skhan@linuxfoundation.org
thanks, -- Shuah