From: Stefan Hajnoczi <stefanha@redhat.com>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>, Jens Axboe <axboe@kernel.dk>,
virtualization@lists.linux-foundation.org,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-s390@vger.kernel.org,
Christian Borntraeger <borntraeger@de.ibm.com>,
Viktor Mihajlovski <mihajlov@linux.ibm.com>,
Cornelia Huck <cohuck@redhat.com>, Ram Pai <linuxram@us.ibm.com>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
"Lendacky, Thomas" <Thomas.Lendacky@amd.com>
Subject: Re: [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures
Date: Wed, 19 Feb 2020 15:11:34 +0000 [thread overview]
Message-ID: <20200219151134.GI1078625@stefanha-x1.localdomain> (raw)
In-Reply-To: <20200213123728.61216-1-pasic@linux.ibm.com>
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On Thu, Feb 13, 2020 at 01:37:26PM +0100, Halil Pasic 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
> --
> 2.17.1
>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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next prev parent reply other threads:[~2020-02-19 17:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-13 12:37 [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures Halil Pasic
2020-02-13 12:37 ` [PATCH 1/2] virtio-blk: fix hw_queue stopped on arbitrary error Halil Pasic
2020-02-14 18:20 ` dongli.zhang
2020-02-17 13:08 ` Halil Pasic
2020-02-18 2:21 ` Ming Lei
2020-02-18 12:35 ` Halil Pasic
2020-02-19 1:46 ` Ming Lei
2020-02-19 15:42 ` Halil Pasic
2020-02-13 12:37 ` [PATCH 2/2] virtio-blk: improve virtqueue error to BLK_STS Halil Pasic
2020-02-19 15:11 ` Stefan Hajnoczi [this message]
2020-03-03 14:12 ` [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures Halil Pasic
2020-03-03 14:49 ` Michael S. Tsirkin
2020-03-03 17:02 ` Halil Pasic
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