From: Zachary Amsden <zamsden@redhat.com>
To: Nikola Ciprich <extmaillist@linuxbox.cz>
Cc: Avi Kivity <avi@redhat.com>,
Nikola Ciprich <nikola.ciprich@linuxbox.cz>,
KVM list <kvm@vger.kernel.org>,
Linux kernel list <linux-kernel@vger.kernel.org>,
Glauber Costa <glommer@redhat.com>
Subject: Re: regression - 2.6.36 -> 2.6.37 - kvm - 32bit SMP guests don't boot
Date: Fri, 04 Mar 2011 10:13:51 -0500 [thread overview]
Message-ID: <4D7101AF.6060009@redhat.com> (raw)
In-Reply-To: <20110303220155.GB27691@nik-comp.lan>
On 03/03/2011 05:01 PM, Nikola Ciprich wrote:
>> That sounds like a kernel which will be vulnerable to broken KVM clock
>> on 32-bit. There's a kernel side fix that is needed, but why the server
>> side change triggers the problem needs more investigation.
>>
> OK, it's important for me that I can fix this by kernel parameter,
> but if I can help somehow with debugging, please let me know.
> thanks for Your time!
> nik
>
You don't see any messages about TSC being unstable or switching
clocksource after loading the KVM module? And you are not suspending
the host or anything?
Can you try using "processor.max_cstate=1" on the host as a kernel
parameter and see if it makes a difference?
next prev parent reply other threads:[~2011-03-04 15:13 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-23 23:42 regression - 2.6.36 -> 2.6.37 - kvm - 32bit SMP guests don't boot Nikola Ciprich
2011-02-24 10:17 ` Avi Kivity
2011-02-24 10:48 ` Nikola Ciprich
2011-02-24 10:52 ` Avi Kivity
2011-02-24 11:27 ` Nikola Ciprich
2011-02-24 12:26 ` Avi Kivity
2011-02-24 12:41 ` Nikola Ciprich
2011-02-24 12:51 ` Avi Kivity
2011-02-24 12:57 ` Nikola Ciprich
2011-02-25 10:48 ` Nikola Ciprich
2011-02-25 14:45 ` Zachary Amsden
2011-02-27 17:20 ` Nikola Ciprich
2011-02-28 13:51 ` Zachary Amsden
2011-02-28 14:32 ` Nikola Ciprich
2011-02-28 15:17 ` Zachary Amsden
2011-02-28 15:28 ` Nikola Ciprich
2011-02-28 15:56 ` Zachary Amsden
2011-02-28 17:13 ` Nikola Ciprich
2011-02-28 17:15 ` Nikola Ciprich
2011-03-03 1:56 ` Zachary Amsden
2011-03-03 7:06 ` Nikola Ciprich
2011-03-03 20:47 ` Zachary Amsden
2011-03-03 21:06 ` Nikola Ciprich
2011-03-03 21:58 ` Zachary Amsden
2011-03-03 22:01 ` Nikola Ciprich
2011-03-04 15:13 ` Zachary Amsden [this message]
2011-03-04 18:27 ` Nikola Ciprich
2011-03-04 19:09 ` Glauber Costa
2011-03-04 20:55 ` Nikola Ciprich
2011-03-04 21:41 ` Glauber Costa
2011-03-04 22:36 ` Nikola Ciprich
2011-03-04 22:59 ` Zachary Amsden
2011-03-05 1:17 ` Zachary Amsden
2011-03-05 7:21 ` Nikola Ciprich
2011-03-06 14:53 ` Zachary Amsden
2011-03-06 16:03 ` Nikola Ciprich
2011-03-04 22:57 ` Zachary Amsden
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