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Re: [Xen-devel] kernel BUG at arch/x86/xen/mmu.c:1860!

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] kernel BUG at arch/x86/xen/mmu.c:1860!
From: "Fajar A. Nugraha" <list@xxxxxxxxx>
Date: Fri, 4 Mar 2011 13:15:14 +0700
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Teck Choon Giam <giamteckchoon@xxxxxxxxx>
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On Fri, Mar 4, 2011 at 12:30 PM, Teck Choon Giam <giamteckchoon@xxxxxxxxx> wrote:

On Fri, Mar 4, 2011 at 6:16 AM, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
On Tue, Mar 01, 2011 at 05:59:54PM +0800, Teck Choon Giam wrote:
> On Tue, Mar 1, 2011 at 12:20 AM, Konrad Rzeszutek Wilk <
> konrad.wilk@xxxxxxxxxx> wrote:
> > > This is just an update from my testing.
> > >
> > > I tried with latest xen/next-2.6.32.x and same bug still there:
> >
> > Grrrrrrrr..
> >
> > Let me setup a machine to reproduce this. Is the distro you are using
> > still CentOS 5?
> >
> Yes.

OK, I got a machine with CentOS 5.5 installed. Had some trouble getting
the kernel to boot - a different issue that the one you are seeing however.

What arguments are you using for your dom0 and Xen hypervisor?

Example in one of my test server:

title CentOS (
    root (hd0,0)
    kernel /xen.gz dom0_mem=1024M loglvl=all guest_loglvl=all cpuidle=0 cpufreq=none
    module /vmlinuz- ro root=/dev/md1 panic=5 panic_timeout=5
    module /initrd-

RHEL/Centos5 also needs CONFIG_SYSFS_DEPRECATED=y, CONFIG_SYSFS_DEPRECATED_V2=y for 2.6.32 kernel to work correctly with userland tools.

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