This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-users] /dev/xen/blktap0 already exists

Mark Williamson wrote:
>> I'm getting this message every time I start xend. If I go to /dev/xen,
>> there it is blktap0, but if I use tap:aio: option to load domU file, at
>> boot process I get a lot of errors, like "fd not found, patch aio_poll
>> not
>> implemented" or something like this.
> Blocktap relies on a Linux kernel patch implementing some AIO
> functionality 
> which is shipped with the xen-unstable distribution.  It sounds like
> you're 
> somehow missing that patch, but I'm not clear how that could have
> happened.
> Where did your Xen install come from?  Compiled yourself, distro kernel, 
> or ... ?  Have you made any tweaks to the setup that might be relevant?
> Cheers,
> Mark
>> Where can I search info about that? I found little info in google...
>> Kind regards,
>> Ignacio.
> -- 
> Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
> Mark: To answer a question with a question: What use is a skateboard?
> Dave: Skateboards have wheels.
> Mark: My wheel has a wheel!
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users


I installed Gentoo 2007.0 from fresh, and then use #emerge xen to get
2.6.20-xen-r6 kernel, which I'm using. I tried with and without mactel
patches (I'm using Core 2 Duo Macbook), I made no other change to kernel
sources downloaded from gentoo ebuild. Xen is 3.1.2 version.

I can get it working with [phy:...] and [file:...], but no luck with


View this message in context: 
Sent from the Xen - User mailing list archive at Nabble.com.

Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>