On Mon, Mar 05, 2007 at 01:14:05PM +0200, Anzi wrote:
> >Mar  4 00:41:53 xenbsd /netbsd: xennetback_ifstart: no mcl_pages
> >Mar  4 00:41:53 xenbsd /netbsd: nnetback_ifstart: no mcl_pages
> Again rest of the message (?):
> 
> Kernel is not default, I have compiled it myself, but I think there are 
> no exotic things:
> NetBSD xenbsd.domain.com 4.0_BETA2 NetBSD 4.0_BETA2 (XEN3_DOM0) #0: Fri 
> Jan 19 14:46:24 EET 2007  
> @xenbsd.domain.com:/home/--/current/src/sys/arch/i386/compile/obj/XEN3_DOM0_ 
> i386
> 
> I also tried Kernel debugger (CTRL+ALT+ESC), but I'm really not sure 
> what to do there. tried next/continue and this is what I got:
> Just before kernel prints xennetback_ifstart: no mcl_pages
> this is executed:
> Xennetback ifsoftstart+0x76b:ret
> 
> 
> This was on a production machine so I couldn't debug more (I rebooted). 
> Does anybody have Ideas what seems to be wrong?

How much free ram do you have ? xm info should tell you.
It's possible that There are too much ram allocated to domUs, would cause
problem when dom0 needs some pages to perform I/O with the domUs.

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
     NetBSD: 26 ans d'experience feront toujours la difference
--