Re: [PATCHSET v2] blk-mq: reimplement timeout handling

[Bart Van Assche]

On Wed, 2017-12-20 at 16:08 -0800, tj@xxxxxxxxxx wrote:
> On Wed, Dec 20, 2017 at 11:41:02PM +0000, Bart Van Assche wrote:
> > On Tue, 2017-12-12 at 11:01 -0800, Tejun Heo wrote:
> > > Currently, blk-mq timeout path synchronizes against the usual
> > > issue/completion path using a complex scheme involving atomic
> > > bitflags, REQ_ATOM_*, memory barriers and subtle memory coherence
> > > rules.  Unfortunatley, it contains quite a few holes.
> > 
> > Hello Tejun,
> > 
> > An attempt to run SCSI I/O with this patch series applied resulted in
> > the following:
> 
> Can you please try the v3?  There were a couple bugs that I missed
> while testing earlier versions.
> 
>  http://lkml.kernel.org/r/20171216120726.517153-1-tj@xxxxxxxxxx

Will do. But please Cc: linux-block in case you would post a v4 of this patch
series. I searched the linux-block folder of my mailbox for the latest version
of this patch series and that is how I ended up testing v2 instead of v3 ...

Bart.