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

[tj@xxxxxxxxxx]

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

Thanks.

-- 
tejun