> On Jul 12, 2024, at 11:08 AM, Puranjay Mohan <puranjay12@xxxxxxxxx> wrote: > > Thanks for testing the fix. > > This bug has been resolved now but the test still hangs sometimes. > Unfortunately, I am not able to reproduce this hang > using vmtest. I have not able to reproduce the original error either. I will try to reproduce on the actual CI host next week (which are native arm64 host compared to my local setup which uses full emulation). > Can you extract some logs from the CI somehow?? If it is > hanging in the kernel there should be some > soft lockup or RCU lockup related messages. I think once we execute the test, vmtest does not track the console logs anymore, so we won’t see those. That should be fixable, but for now, I won’t be able to get more logs than you get from the UI currently. > > I was talking about this with Kumar and we think that this test is > hanging in the userspace in the following loop: > > while (READ_ONCE(fexit_skel->bss->fentry_cnt) != 2); > > Could it be that fentry_cnt is > 2 somehow before we reach this?? This > is only a random guess though. > Manu
