Re: [Xen-users] Problems with tap:aio on Dell PowerEdge 1950 III

[Aleix Dorca <adorca@xxxxxx>]

Hi,

I'll answer myself... These last two days I've tried a lot of things  
and "tap:aio" on Xen 3.2.0 and on 3.2.1 did not work on my DELL machine.
Finally today I've built the unstable release 3.3.0 via the mercurial  
repository and, surprise!, all worked like a charm!
So I'll migrate my systems to Xen when this version is available this  
August.
Thanks for reading,

Aleix.

El 03/07/2008, a las 22:16, Aleix Dorca escribió:

> Hi all,
>
> this is my first post to this list. I've been trying to find  
> information related to my problem on Google, the Xen irc channel  
> and, of course, this lists.
> The thing is that I've been dealing with Xen since version 3.0.3 on  
> old machines (pentium IV without virtualization capabilities)  
> running Linux DomU's without problems. I upgraded to 3.2.0 and 3.2.1  
> also without problems.
> Lately we bought the machines that will run Xen in production. These  
> are Dell PowerEdge 1950 III.
> I have installed the same system that I had on the old machines,  
> this is:
> - Debian Etch 4.0r3
> - Xen 3.2.0
>
> I've tried with 32 and 64 bits, and also with the latest 3.2.1 xen  
> version.
> I can't get to work tap:aio. File:/ works perfectly though.
>
> I get this error message on syslog on boot of the DomU:
>
> ---
> Jul  3 13:51:52 xen64 kernel: blktap: ring-ref 8, event-channel 6,  
> protocol 1 (x86_64-abi)
> Jul  3 13:51:52 xen64 kernel: blk_tap: Corresponding UE ring does  
> not exist!"
> ---
>
> And here, the domU, enters the wait state (300s countdown) and then  
> nothing... disk is not mounted.
> It doesn't matter if disk files are local or remote (via iscsi). It  
> won't work.
> Has anyone seen or deal with this problem? Do you need any other  
> kind of information?
> Thanks a lot,
>
> Aleix Dorca.
>
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