linux-kernel - Re: [kvm-devel] [BUG] Oops with KVM-27

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Message-ID: <20070604212207.GA22365@dreamland.darkstar.lan>
Date:	Mon, 4 Jun 2007 23:22:07 +0200
From:	Luca Tettamanti <kronos.it@...il.com>
To:	Avi Kivity <avi@...ranet.com>
Cc:	kvm-devel@...ts.sf.net, linux-kernel@...r.kernel.org
Subject: Re: [kvm-devel] [BUG] Oops with KVM-27

Il Mon, Jun 04, 2007 at 11:51:10PM +0300, Avi Kivity ha scritto: 
> > While doing repeated tests with the installer I ran into another
> > (unrelated) problem. Sometimes the guest kernel hangs at boot at:
> >
> > NET: Registered protocol family 2
> >
> > with any kind of networking options (except for -net none, which works).
> > With -no-kvm it boots with any networking option.
> >
> >   
> 
> Can you try to pin the guest on a single core with taskset:
> 
>    taskset 1 qemu ...

Doesn't help. What works is 'nolapic', i.e. disabling the local APIC on
the guest kernel.
I've also tried disabling TSC (notsc) and forcing PIT as the clocksource
(clocksouce=pit clock=pit); neither of them helped.

Luca
-- 
Il dottore mi ha detto di smettere di fare cene intime per quattro.
A meno che non ci siamo altre tre persone.
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