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Re: [Xen-devel] Re: [Xen-users] Xen-4 PVUSB kernel bug / Xenlinux 2.6.32

On Wednesday 19 May 2010, Jan Beulich wrote:
> On Fri, May 14, 2010 at 09:10:57PM +0200, Peter Klar wrote:
> > As the bug seems to be related to the SLAB allocator, the dump says
> > 'kernel BUG at mm/slub.c:2969!', I also recompiled the kernel using
> > the SLAB instead of SLUB allocator, but this does not make any
> > difference, the behaviour is the same (beside the dump then reports a
> > bug within slab.c instead of slub.c).
> The corresponding register/stack dump from the SLAB case would
> certainly be interesting.
How do I get the dump?

> Also, since your kernel may be arbitrarily patched from the original
> 2.6.32, it would be helpful if you could confirm that the line you get
> reported is in fact referring to
>         BUG_ON(!PageCompound(page));
> in slub.c's kfree().
Again, how can I confirm this?

> Is your Dom0 kernel a pv-ops one (not sure if pv USB even exists
> there) or a forward port?
Afaik the gentoo xen kernel sources are based on the opensuse patches.


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