Re: [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures
From: Halil Pasic <pasic@linux.ibm.com>
Date: 2020-03-03 17:02:31
Also in:
linux-s390, lkml, virtualization
On Tue, 3 Mar 2020 09:49:21 -0500 "Michael S. Tsirkin" [off-list ref] wrote:
On Tue, Mar 03, 2020 at 03:12:52PM +0100, Halil Pasic wrote:quoted
On Thu, 13 Feb 2020 13:37:26 +0100 Halil Pasic [off-list ref] wrote:quoted
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: 39bed42de2e7d74686a2d5a45638d6a5d7e7d473ping 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, HalilI've queued this, thanks!
Thank you!