Tap:aio not working in current unstable?

Tap:aio not working in current unstable?

[Petersson, Mats]

Maybe it's something I'm doing wrong, but I have a 15gb image that I use
with disk = [ "tap:aio:/root/images/vista32.img,hda,w" ]

It was working fine on Friday, but today it failed to boot with an error
message. 

The same works fine when I replace "tap:aio:" with "file:". It seems
like qemu-dm tries to open the file with the "aio:" still attached -
judging by the message in qemu-dm.<pid>.log. 

I can't see any recent changes that is supposed to change this - did I
miss something, or is it just gone broken?

--
Mats

Re: Tap:aio not working in current unstable?

[Mark McLoughlin]

Hi,

On Mon, 2007-03-12 at 17:11 +0100, Petersson, Mats wrote:
> Maybe it's something I'm doing wrong, but I have a 15gb image that I use
> with disk = [ "tap:aio:/root/images/vista32.img,hda,w" ]
> 
> It was working fine on Friday, but today it failed to boot with an error
> message. 
> 
> The same works fine when I replace "tap:aio:" with "file:". It seems
> like qemu-dm tries to open the file with the "aio:" still attached -
> judging by the message in qemu-dm.<pid>.log. 
> 
> I can't see any recent changes that is supposed to change this - did I
> miss something, or is it just gone broken?

	Are you using pygrub? Currently booting from tap:aio fails with pygrub.
See patch at:

  http://lists.xensource.com/archives/html/xen-devel/2007-03/msg00156.html

Cheers,
Mark.

RE: Tap:aio not working in current unstable?

[Petersson, Mats]

 

> -----Original Message-----
> From: Mark McLoughlin [mailto:markmc@redhat.com] 
> Sent: 20 March 2007 10:50
> To: Petersson, Mats
> Cc: xen-devel@lists.xensource.com
> Subject: Re: [Xen-devel] Tap:aio not working in current unstable?
> 
> Hi,
> 
> On Mon, 2007-03-12 at 17:11 +0100, Petersson, Mats wrote:
> > Maybe it's something I'm doing wrong, but I have a 15gb 
> image that I use
> > with disk = [ "tap:aio:/root/images/vista32.img,hda,w" ]
> > 
> > It was working fine on Friday, but today it failed to boot 
> with an error
> > message. 
> > 
> > The same works fine when I replace "tap:aio:" with "file:". It seems
> > like qemu-dm tries to open the file with the "aio:" still attached -
> > judging by the message in qemu-dm.<pid>.log. 
> > 
> > I can't see any recent changes that is supposed to change 
> this - did I
> > miss something, or is it just gone broken?
> 
> 	Are you using pygrub? Currently booting from tap:aio 
> fails with pygrub.

Nope, not using pygrub, and I just tested it with my current setup
(Change-set 14401 + 1 patch from Tim Deegan (fix for SMP HVM
save/restore)). 

--
Mats
> See patch at:
> 
>   
> http://lists.xensource.com/archives/html/xen-devel/2007-03/msg
> 00156.html
> 
> Cheers,
> Mark.
> 
> 
> 
>