Re: Apparent regression in blktests since 5.18-rc1+

[Bart Van Assche <bvanassche@acm.org>]

On 5/17/22 17:21, Bob Pearson wrote:
> Thanks Bart. I was able to follow your steps above. But unfortunately not much has changed.
> I still see hangs in siw (with no code changes by me) and also in rxe (but here I have
> fixed some lockdep warnings so it will run in a debug kernel.) There are two test cases that
> cause the most problems. srp/002 and srp/011. 011 always fails solidly. 002 sometimes hangs and
> sometimes completes but with failed status. The rest of the tests all pass.
> 
> Both tests hang at a line that looks like
> 	scsi host6: ib_srp: Already connected to target port with id_ext=...
> 
> When 002 completes but fails there are 14 second gaps at some of the same lines in the trace.
> This has the feel of the earlier problem with the 3 minute timeout that was fixed by the
> patch (revert ... scsi_debug.c) that you sent and is applied here.
> 
> I really don't know how to make progress here. If anyone knows what is happening at the
> already connected lines let me know. They seem normal except for the long gaps and hangs
> when they occur.

How about sharing the kernel config file that you are using in your 
tests such that I can try to reproduce the behavior that you are observing?

Thanks,

Bart.