Re: [PATCH v7 9/9] block, scsi: Make SCSI quiesce and resume work reliably

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Bart Van Assche - 10.10.17, 15:27:
> On Tue, 2017-10-10 at 09:57 +0200, Martin Steigerwald wrote:
> 
> > Bart Van Assche - 09.10.17, 16:14:
> > 
> > > The contexts from which a SCSI device can be quiesced or resumed are:
> > > [ ... ]
> > 
> > 
> > Does this as reliably fix the issue as the patches from Ming? I mean in
> > *real world* scenarios? Or is it just about the same approach as Ming
> > has taken. 
> > I ask cause I don´t see any Tested-By:´s here? I know I tested Ming´s
> > patch series and I know it fixes the hang after resume from suspend
> > with blk-mq + BFQ issue for me. I have an uptime of 7 days and I didn´t
> > see any uptime even remotely like that in a long time (before that issue
> > Intel gfx drivers caused hangs, but thankfully that seems fixed
> > meanwhile).
> > 
> > I´d be willing to test. Do you have a 4.14.x tree available with these
> > patches applied I can just add as a remote and fetch from?

> A previous version of this patch series passed Oleksandr's tests. This
> series is close to that previous version so I think it is safe to assume
> that this version will also pass Oleksandr's tests. Anyway, more testing is
> definitely welcome so if you want to verify this series please start from
> the following tree (Jens' for-next branch + this series):
> https://github.com/bvanassche/linux/tree/blk-mq-pm-v7 

Several suspend to ram and resume, and suspend to disk and resume cycles 
without issues. So I think this is good.

Tested-By: Martin Steigerwald <martin@xxxxxxxxxxxx>

Thanks,
-- 
Martin



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