On Wed, 26 Oct 2022 13:19:57 +0800, Ming Lei wrote:
> From: David Jeffery <djeffery@xxxxxxxxxx>
>
> David Jeffery found one double ->queue_rq() issue, so far it can
> be triggered in VM use case because of long vmexit latency or preempt
> latency of vCPU pthread or long page fault in vCPU pthread, then block
> IO req could be timed out before queuing the request to hardware but after
> calling blk_mq_start_request() during ->queue_rq(), then timeout handler
> may handle it by requeue, then double ->queue_rq() is caused, and kernel
> panic.
>
> [...]
Applied, thanks!
[1/1] blk-mq: avoid double ->queue_rq() because of early timeout
commit: 82c229476b8f6afd7e09bc4dc77d89dc19ff7688
Best regards,
--
Jens Axboe
