[Bug 215880] Resume process hangs for 5-6 seconds starting sometime in 5.16

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=215880

--- Comment #36 from jason600 (jason600.groome@gmail.com) ---
(In reply to Bart Van Assche from comment #27)
> Thanks for testing! The patches from the sd-resume branch have been posted
> on the linux-scsi mailing list. See also
> https://lore.kernel.org/linux-scsi/20220628222131.14780-1-bvanassche@acm.org/
> T/#t

Hi Bart, just an update for you. I noticed this had been removed from the
6.0-rc1 for freezing after suspend.

I've been compiling my kernel with this fix on various 5.18 kernels (with
opensuse tumbleweed), it has worked fine, no freezing on resume as others have
mentioned.

Yesterday, I updated to 5.19.2 kernel, applied the fix, recompiled, and it
froze after the first suspend. Rebooted and the same thing happened again. I
recompiled the kernel with the fix, just to make sure i didn't mess it up, and
the same happened again.

When you originally did this fix, you based it on 5.18, and indeed, it works
fine on 5.18 for me. There were a lot of changes to the drivers/scsi/sd.c file
for 5.19, presumably it was those changes that made this fix start freezing
after suspend.

Perhaps you could check if the other people that experienced freezing were
using either 5.19 or 6.0-rc1.

Hopefully, this information might help in finding the cause and re-fixing this
issue.

Thanks for all you help

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