From mboxrd@z Thu Jan  1 00:00:00 1970
From: Amit Shah <amit.shah@redhat.com>
Subject: Re: qemu-kvm process is running at 100% CPU, but no response from
	guest
Date: Wed, 15 Jul 2009 12:51:33 +0530
Message-ID: <20090715072133.GD2844@amit-x200.redhat.com>
References: <20090709051854.GP15329@salstar.sk>
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: QUOTED-PRINTABLE
Cc: kvm@vger.kernel.org
To: =?iso-8859-1?Q?J=E1n_ONDREJ_=28SAL=29?= <ondrejj@salstar.sk>
Return-path: <kvm-owner@vger.kernel.org>
Received: from mx2.redhat.com ([66.187.237.31]:33498 "EHLO mx2.redhat.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1752674AbZGOHVr (ORCPT <rfc822;kvm@vger.kernel.org>);
	Wed, 15 Jul 2009 03:21:47 -0400
Content-Disposition: inline
In-Reply-To: <20090709051854.GP15329@salstar.sk>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

On (Thu) Jul 09 2009 [07:18:54], J=E1n ONDREJ (SAL) wrote:
> Hello,
>=20
>   today I have second incident, that my qemu-kvm process is running a=
t 100%
> or 200% CPU (watched using top program), but there is no response fro=
m guest
> long time (some hours). First time lots of these messages appeared in=
 dmesg:
>=20
> vcpu not ready for apic_round_robin
> vcpu not ready for apic_round_robin
> vcpu not ready for apic_round_robin
>=20
> Second time nothing, only process was run at 200% CPU:
>=20
> top - 06:23:14 up 4 days, 11:06,  1 user,  load average: 2.26, 2.15, =
2.18
> Tasks: 126 total,   1 running, 125 sleeping,   0 stopped,   0 zombie
> Cpu(s): 50.2%us,  0.4%sy,  0.0%ni, 49.1%id,  0.2%wa,  0.0%hi,  0.1%si=
,
> 0.0%st
> Mem:   8047368k total,  8004516k used,    42852k free,  1507160k buff=
ers
> Swap:  8388600k total,    57284k used,  8331316k free,    79700k cach=
ed
>=20
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND =
         =20
> 17110 root      20   0 4417m 3.9g 1464 S 201.3 50.9   1326:34 qemu-kv=
m
>  9886 root      20   0 2519m 1.9g 1376 S  1.7 25.1  72:40.73 qemu-kvm

What's the command line you used to start the guests?

> Serial console without response too in boch cases, no ping to guest.
>=20
> My current configuration is an fully updated Fedora 11 host and updat=
ed
> Fedora 10 guest. KVM is from package qemu-kvm-0.10.5-3.fc11.x86_64.
>=20
		Amit