From: Kevin Wolf <kwolf@redhat.com>
To: John Snow <jsnow@redhat.com>
Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org,
qemu-stable@nongnu.org, stefanha@redhat.com, pbonzini@redhat.com,
mreitz@redhat.com
Subject: Re: [Qemu-devel] [PATCH] blockdev: use drained_begin/end for qmp_block_resize
Date: Thu, 11 May 2017 11:26:26 +0200 [thread overview]
Message-ID: <20170511092626.GA4235@noname.str.redhat.com> (raw)
In-Reply-To: <20170510173945.11819-1-jsnow@redhat.com>
Am 10.05.2017 um 19:39 hat John Snow geschrieben:
> Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1447551
>
> If one tries to issue a block_resize while a guest is busy
> accessing the disk, it is possible that qemu may deadlock
> when invoking aio_poll from both the main loop and the iothread.
>
> Replace another instance of bdrv_drain_all that doesn't
> quite belong.
>
> Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: John Snow <jsnow@redhat.com>
Thanks, applied to the block branch.
Kevin
prev parent reply other threads:[~2017-05-11 9:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-10 17:39 [Qemu-devel] [PATCH] blockdev: use drained_begin/end for qmp_block_resize John Snow
2017-05-10 18:32 ` Eric Blake
2017-05-11 7:53 ` Paolo Bonzini
2017-05-11 9:26 ` Kevin Wolf [this message]
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