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Re: [Qemu-block] [Qemu-devel] [PATCH v2 0/6] Acquire the AioContext duri

From: Stefan Hajnoczi
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH v2 0/6] Acquire the AioContext during _realize()
Date: Fri, 18 Jan 2019 09:56:52 +0000
User-agent: Mutt/1.10.1 (2018-07-13)

On Thu, Jan 17, 2019 at 02:24:10PM +0100, Alberto Garcia wrote:
> On Wed 16 Jan 2019 02:54:44 PM CET, Stefan Hajnoczi wrote:
> > This patch series makes virtio-blk and virtio-scsi more robust,
> > although I haven't checked what happens if the drive is attached to a
> > different IOThread than the device - will the switchover work?
> You mean if you use x-blockdev-set-iothread with a drive and then attach
> it to a device using a different thread? That seems to work (with my
> patch).

Does it work with a running VM that will do I/O?  If yes, then that's
great and we should merge the virtio-blk/scsi patches to make them
robust for this case.  I'm a little surprised it works though :-)
because the code wasn't designed or tested for this.


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