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Re: [Xen-devel] Kernel aio bug in Debian 2.6.32-5-xen kernel?

On Thu, 2012-04-26 at 14:14 +0100, George Dunlap wrote:
> On Thu, Apr 26, 2012 at 1:07 PM, Stefano Stabellini
> <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> >> However this kernel does have blktap so why is qemu based AIO being used
> >> at all?
> >
> > If blktap is present and working then libxl only uses QEMU for
> > qcow/qcow2 disk images.
> Hmm -- except that the process that's dying is clearly QEMU, and the
> disk images are definitely not qcow*, and Ian seems to think this
> kernel has blktap (how could I tell?), so something's not right.

It looks like it is a module -- lsmod should confirm, maybe it's a
simple as loading it?

(if so let me know and I'll be sure to include that when I write up
"installing a Debian Dom0")

> Is there a command-line way to disable aio?
>  -George

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