Re: [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures

Halil Pasic
2020-03-03T17:02:31Z

On Tue, 3 Mar 2020 09:49:21 -0500
"Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Tue, Mar 03, 2020 at 03:12:52PM +0100, Halil Pasic wrote:
> > On Thu, 13 Feb 2020 13:37:26 +0100
> > Halil Pasic <pasic@linux.ibm.com> wrote:
> >
> > > Two patches are handling new edge cases introduced by doing DMA mappings
> > > (which can fail) in virtio core.
> > >
> > > I stumbled upon this while stress testing I/O for Protected Virtual
> > > Machines. I deliberately chose a tiny swiotlb size and have generated
> > > load with fio. With more than one virtio-blk disk in use I experienced
> > > hangs.
> > >
> > > The goal of this series is to fix those hangs.
> > >
> > > Halil Pasic (2):
> > > virtio-blk: fix hw_queue stopped on arbitrary error
> > > virtio-blk: improve virtqueue error to BLK_STS
> > >
> > > drivers/block/virtio_blk.c | 17 ++++++++++++-----
> > > 1 file changed, 12 insertions(+), 5 deletions(-)
> > >
> > >
> > > base-commit: 39bed42de2e7d74686a2d5a45638d6a5d7e7d473
> >
> > ping
> >
> > Hi Michael, hi Jason,
> >
> > I got some favorable reviews for this, but AFAIK I got nothing form the
> > maintainers yet.
> >
> > Is some of you going to pick these?
> >
> > Regards,
> > Halil
>
> I've queued this, thanks!
>

Thank you!