Re: [Xen-devel] Re: 2.6.37-rc1 mainline domU - BUG: unable to handle kernel paging request

[Boris Derzhavets <bderzhavets@xxxxxxxxx>]

I've tested F14 DomU (kernel vmlinuz-2.6.37-0.1.rc1.git8.xendom0.fc14.x86_64) as NFS client and Xen 4.0.1 F14 Dom0 (kernel vmlinuz-2.6.32.25-172.xendom0.fc14.x86_64) as NFS server . Copied 700 MB ISO images from NFS folder at Dom0 to DomU and scp'ed them back to Dom0. During about 30 - 40 min DomU ran pretty stable , regardless kernel crash as "unable to handle page request" was reported once by F14 DomU, but it didn't actually crash DomU. Same excersises with replacement F14 by Ubuntu 10.04 Server results DomU crash in about several minutes. Dom0's instances dual boot on same development box ( Q9500,ASUS P5Q3,8GB)

Boris.

--- On Fri, 11/12/10, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:

From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: 2.6.37-rc1 mainline domU - BUG: unable to handle kernel paging request
To: "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx>
Cc: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Bruce Edge" <bruce.edge@xxxxxxxxx>, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>
Date: Friday, November 12, 2010, 12:01 PM

On Fri, Nov 12, 2010 at 05:27:43PM +0100, Sander Eikelenboom wrote:
> Hi Bruce,
>
> Perhaps handpick some kernels before and after the pulls of the xen patches (pv-on-hvm etc) to begin with ?
> When you let git choose, especially with rc-1 kernels, you will end up with kernels in between patch series, resulting in panics.

Well, just the bare-bone boot of PV guests with nothing fancy ought to work.

But that is the theory and ..
> > The git bisecting is slow going. I've never tried that before and I'm a git
> > rookie.
> > I picked 2.6.36 - 2.6.37-rc1 as the bisect range and my first 2 bisects all
> > panic at boot so I'm obviously doing something wrong.
> > I'll RTFM a bit more and keep at it.

.. as Bruce experiences this is not the case. Hmm..

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