Re: bug in tag handling in blk-mq?

From: Mike Galbraith
Date: Thu May 10 2018 - 00:38:42 EST


On Wed, 2018-05-09 at 13:50 -0600, Jens Axboe wrote:
> On 5/9/18 12:31 PM, Mike Galbraith wrote:
> > On Wed, 2018-05-09 at 11:01 -0600, Jens Axboe wrote:
> >> On 5/9/18 10:57 AM, Mike Galbraith wrote:
> >>
> >>>>> Confirmed. Impressive high speed bug stomping.
> >>>>
> >>>> Well, that's good news. Can I get you to try this patch?
> >>>
> >>> Sure thing. The original hang (minus provocation patch) being
> >>> annoyingly non-deterministic, this will (hopefully) take a while.
> >>
> >> You can verify with the provocation patch as well first, if you wish.
> >
> > Done, box still seems fine.
>
> Omar had some (valid) complaints, can you try this one as well? You
> can also find it as a series here:
>
> http://git.kernel.dk/cgit/linux-block/log/?h=bfq-cleanups
>
> I'll repost the series shortly, need to check if it actually builds and
> boots.

I applied the series (+ provocation), all is well.

-Mike