Re: NetBSD 5.1.2 under Xen 4 HVM

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Mar 09, 2012 at 07:55:23PM +1100, Malcolm Herbert wrote:
> I have a VPS provider that I've just built a NetBSD VM with that is
> apparently running as a Xen 4 domU in an HVM configuration however I'm
> seeing a large number of
> 
>   re0: watchdog timeout
> 
> messages at regular intervals (seems to be every 8sec or so) from the
> kernel (along with associated network hiccup of around 1-2sec) ...
> 
> What is causing these, and how can I fix the problem? I don't know the
> exact version of Xen but can find out if that's necessary.

The re emulation in qemu (at last the version of qemu used by Xen) is
buggy. You can workaround it by using the rtk driver instead:
either use 'boot -c' and then:
disable re
quit
or rebuild a kernel without the re driver (the kernel will use
rtk instead)

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--