From: Halil Pasic <pasic@linux.ibm.com>
To: "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>
Cc: Halil Pasic <pasic@linux.ibm.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Stefan Hajnoczi <stefanha@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: [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures
Date: Thu, 13 Feb 2020 13:37:26 +0100 [thread overview]
Message-ID: <20200213123728.61216-1-pasic@linux.ibm.com> (raw)
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
next reply other threads:[~2020-02-13 12:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-13 12:37 Halil Pasic [this message]
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 ` [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures Stefan Hajnoczi
2020-03-03 14:12 ` Halil Pasic
2020-03-03 14:49 ` Michael S. Tsirkin
2020-03-03 17:02 ` Halil Pasic
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