RE: [PATCH] block-mq: set both block queue and hardware queue restart bit for restart

KY Srinivasan
2017-04-06T04:21:14Z

> From: Bart Van Assche [mailto:Bart.VanAssche@sandisk.com]
> Sent: Wednesday, April 5, 2017 8:46 PM
> To: linux-kernel@vger.kernel.org; linux-block@vger.kernel.org; Long Li
> <longli@microsoft.com>; axboe@kernel.dk
> Cc: Stephen Hemminger <sthemmin@microsoft.com>; KY Srinivasan
> <kys@microsoft.com>
> Subject: Re: [PATCH] block-mq: set both block queue and hardware queue
> restart bit for restart
>
> On Thu, 2017-04-06 at 03:38 +0000, Long Li wrote:
> > > -----Original Message-----
> > > From: Bart Van Assche [mailto:Bart.VanAssche@sandisk.com]
> > >
> > > Please drop this patch. I'm working on a better solution.
> >
> > Thank you. Looking forward to your patch.
>
> Hello Long,
>
> It would help if you could share the name of the block or SCSI driver with
> which you ran into that lockup and also if you could share the name of the
> I/O scheduler used in your test.

The tests that indicated the issue were run Hyper-V. The driver is storvsc_drv.c
The I/O scheduler was I think noop.

K. Y
>
> Thanks,
>
> Bart.