On Apr 20, 2023 / 13:59, John Garry wrote: [...] > Do you know why you specifically were seeing this issue for v6.3-rc7? Is it > just timing related? I seem to remember you mentioning debug configs > earlier. The test case failure was observed with v6.2 also. I did not try older kernels, but I guess the issue has been existing for long time. The failure is observed by chance, and the failure ratio increases when I enable kernel debug options. I think the issue has been hidden, and unveiled with slow kernel and slow system. Also I think the issue is timing related based on my observations. > > It would be nice to see this issue fixed for 6.3 and earlier, but, > considering the circumstances, it doesn't look straightforward. Agreed. The fix patch can not be applied to kernel v6.3 or older version. This is scsi_debug issue, and I'm not sure if it's worth back-porting effort to stable kernels.