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Re: [Xen-users] Soft Lock on cpu problem Still???

To: xen-users <Xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Soft Lock on cpu problem Still???
From: Xin Chen <xcheney@xxxxxxxxxxxxxx>
Date: Wed, 09 May 2007 09:38:10 +1000
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Thanks Pasi,

I downloaded 2.6.18 rpm (because I can't find 12.6.19 one for downloading) kernel-xen and install it then reboot system with this kernel version. It seems work now! The system is running for one day without crushing. Cheers!

I think I wouldn't install the xensource kernel, it may bring me more troubles. For now I just use 2.6.18, until they fix the bugs.

Thanks a lot!!

x


kernel-xen in Fedora is part of the distribution, it's maintained by Fedora
(Redhat) developers.

Fedora currently ships kernel-xen-2.6.20, which is a lot newer than the one
xensource is shipping (2.6.18). That means fedora developers have ported the
xen stuff for the newer kernel.. and there seems to be some bugs in it.

And yes, you should be able to use the xensource kernels with the fedora xen
hypervisor.. just pick up the PAE kernels, as fedora hypervisor is PAE.
-- Pasi

cheers,
x

Pasi Kärkkäinen wrote:

On Mon, May 07, 2007 at 04:08:43PM +1000, Xin Chen wrote:


Hi All,

I have a 'Soft lock on cpu problem'. The system crushed. First, it become slow... and then not responding then need to press reset.....

I have searched it from google and it seems a bug which has alreay been fixed . However, I use yum update kernel-xen xen, and got the latest one. It still got the problem.

My system is Fedora 6. Tha latest kernel is 2.6.20-1.2948.*fc6xen. *
My Machine is:

Quad-core CPU 1.6
Radeon Video Card
4G Memory

The system is running fine when started without xen.

I suspect that maybe the latest kernel didn't come with the bug patch?? Do I need to apply the patch myself? Is it hard to do that ??

By the way, for my guest config file, I use vcpu=1, I don't know if I changed to 4 will help or not?

Thanks for your help! I really need help. Please.


Fedora is shipping known-to-be-broken kernel-xen packages.. I don't why, but
they seem to unwilling to fix them. Same bug in fc6/fc6/fc7.

kernel-xen.2.6.19 works ok.. downgrade to it and it should be fine.

bug report: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=234008
-- Pasi




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