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Re: [Qemu-block] [PATCH] block/nvme: call blk_drain in NVMe reset code t
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-block] [PATCH] block/nvme: call blk_drain in NVMe reset code to avoid lockups |
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Date: |
Thu, 22 Nov 2018 15:32:43 +0100 |
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User-agent: |
Mutt/1.10.1 (2018-07-13) |
Am 06.11.2018 um 13:16 hat Igor Druzhinin geschrieben:
> When blk_flush called in NVMe reset path S/C queues are already freed
> which means that re-entering AIO handling loop having some IO requests
> unfinished will lockup or crash as their SG structures being potentially
> reused. Call blk_drain before freeing the queues to avoid this nasty
> scenario.
>
> Signed-off-by: Igor Druzhinin <address@hidden>
Thanks, applied to the block branch.
Kevin