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Re: [Qemu-devel] [PATCH] aio-posix: honor is_external in AioContext poll


From: Alberto Garcia
Subject: Re: [Qemu-devel] [PATCH] aio-posix: honor is_external in AioContext polling
Date: Tue, 24 Jan 2017 15:31:38 +0100
User-agent: Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu)

On Tue 24 Jan 2017 10:53:50 AM CET, Stefan Hajnoczi wrote:
> AioHandlers marked ->is_external must be skipped when aio_node_check()
> fails.  bdrv_drained_begin() needs this to prevent dataplane from
> submitting new I/O requests while another thread accesses the device and
> relies on it being quiesced.
>
> Thanks to Fam Zheng <address@hidden> for identifying the root cause of
> this crash.
>
> Reported-by: Alberto Garcia <address@hidden>
> Signed-off-by: Stefan Hajnoczi <address@hidden>

Tested-by: Alberto Garcia <address@hidden>

Berto



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