On Fri, Mar 18, 2022 at 04:49:45PM +0900, Byungchul Park wrote:
I guess it was becasue of the commit b1fca27d384e8("kernel debug: support resetting WARN*_ONCE"). Your script seems to reset WARN*_ONCE repeatedly.
I wasn't aware this was being done, but your guess was correct. The WARN_ONCE state is getting cleared between each test in xfstests, with the rationale (which IMO is quite reasonable) why this done in the xfstests commit descrition:
commit c67ea2347454aebbe8eb6e825e9314d099b683da Author: Lukas Czerner lczerner@redhat.com Date: Wed Jul 15 13:42:19 2020 +0200
check: clear WARN_ONCE state before each test
clear WARN_ONCE state before each test to allow a potential problem to be reported for each test
[Eryu: replace "/sys/kernel/debug" with $DEBUGFS_MNT ]
Signed-off-by: Lukas Czerner lczerner@redhat.com Reviewed-by: Zorro Lang zlang@redhat.com Signed-off-by: Eryu Guan guaneryu@gmail.com
Cheers,
- Ted