Dmesg log for 2.6.31-rc8 kernel been built on F12 (rawhide) vs log for same kernel been built on F11 and installed on F12

[Boris Derzhavets <bderzhavets@xxxxxxxxx>]

Previous 2.6.31-rc8 kernel was built on F11 and installed with modules on F12.
Current kernel has been built on F12 (2.6.31-0.204.rc9.fc12.x86_64) and installed
on F12 before loading under Xen 3.4.1.
Dmesg log looks similar to Michael Yuong's 'rc7.git4'  kernel for F12.

Boris.

--- On Tue, 9/8/09, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:

From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Subject: Re: [Xen-devel] Re: Xorg on JF 2.6.31-rc8 with xen 3.5 unstable, stacktrace with >4096M of dom0_mem
To: "Pasi Kärkkäinen" <pasik@xxxxxx>, "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx>
Cc: "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, fedora-xen@xxxxxxxxxx
Date: Tuesday, September 8, 2009, 3:45 PM

Dmesg log for rc8 under Xen 3.4.1 on F12 rawhide attached.

Boris.

--- On Tue, 9/8/09, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:

From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Fedora-xen] Xorg on JF 2.6.31-rc8 with xen 3.5 unstable, stacktrace with >4096M of dom0_mem
To: "Pasi Kärkkäinen" <pasik@xxxxxx>
Cc: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>, fedora-xen@xxxxxxxxxx
Date: Tuesday, September 8, 2009, 3:34 PM

On Tue, Sep 08, 2009 at 10:22:46PM +0300, Pasi Kärkkäinen wrote:
> On Tue, Sep 08, 2009 at 12:14:54PM -0700, Boris Derzhavets wrote:
> > Console drops into the same stack trace in  both cases.
> >
>
> Jeremy: Any ideas could some recent change in pv_ops dom0 kernel cause
> usb stuff to stop working with >4096M of dom0 memory?

The last set of changes in Jeremy's kernel are a set of patches I sent,
so the problem is most likely caused by my work.

A dmesg from both Xen and Linux kernel would be most helpfull. Also
a lspci -vvv would be nice.

And as Pasi suggested, booting the same kernel without Xen would
be most helpful.


>
> dom0_mem=4096M works
> dom0_mem=4097M fails with stacktrace
>
> Boris: What was the last kernel that worked without backtraces?
> Also, does that same kernel work as baremetal (without Xen) ?

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