From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Jim Paris <jim-XrPbb/hENzg@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: soft lockup after stop/cont
Date: Wed, 10 Oct 2007 10:04:59 +0200 [thread overview]
Message-ID: <470C87AB.6050900@qumranet.com> (raw)
In-Reply-To: <20071010080152.GA27601-lSbMZ+N7itA@public.gmane.org>
Jim Paris wrote:
> If I stop KVM in the monitor with "stop", wait a minute, and do
> "cont", a Linux guest gives me a "BUG: soft lockup detected on CPU#0".
> Is that expected behavior?
No.
> What isn't virtualized that allows it to
> detect that? The host is a core 2 duo.
>
>
It may be that the timer correction code detects that zillions of timer
interrupts have not been serviced by the guest so it floods the guest
with these interrupts. Does -no-kvm-irqchip help?
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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next prev parent reply other threads:[~2007-10-10 8:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-10 8:01 soft lockup after stop/cont Jim Paris
[not found] ` <20071010080152.GA27601-lSbMZ+N7itA@public.gmane.org>
2007-10-10 8:04 ` Avi Kivity [this message]
[not found] ` <470C87AB.6050900-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-10 8:50 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A023643BD-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-10 9:09 ` Avi Kivity
[not found] ` <470C96B2.3080905-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-10 9:11 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02364404-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-10 9:18 ` Avi Kivity
[not found] ` <470C98EB.1080602-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-10 9:57 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A0236442D-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-10 10:06 ` Avi Kivity
[not found] ` <470CA429.2080607-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-11 1:17 ` Dong, Eddie
2007-10-10 18:54 ` Jim Paris
[not found] ` <20071010185443.GA14525-lSbMZ+N7itA@public.gmane.org>
2007-10-11 9:03 ` Carsten Otte
[not found] ` <470DE6F8.9090801-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-10-11 9:29 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02364AD6-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-11 10:57 ` Carsten Otte
[not found] ` <470E01A2.104-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-10-11 16:18 ` Jan Glauber1
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