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

["Guido Hecken" <guido.hecken@xxxxxxxxxxxxx>]

Konrad,

thanks for the fast response and your hint.
I suppose, I 'll have to recompile the debian standard kernel to integrate 
these patches or did I miss something?
If so, this drives me back to a non-standard system which I can't update by 
normal system-tools without taking special care.
Is there any other way to integrate these patches?

regards,
Guido

-----Ursprüngliche Nachricht-----
Von: Konrad Rzeszutek Wilk [mailto:konrad.wilk@xxxxxxxxxx] 
Gesendet: Montag, 21. Februar 2011 17:16
An: Guido Hecken
Cc: Pasi Kärkkäinen; xen-devel@xxxxxxxxxxxxxxxxxxx
Betreff: Re: [Xen-devel] [Xen-dev] kernel BUG at arch/x86/xen/mmu.c:1860!

On Mon, Feb 21, 2011 at 02:58:53PM +0100, Guido Hecken wrote:
> Pasi,
> thanks for the quick response.
> 
> As mentioned in previous posts, creating and afterwards deleting snapshots 
> crashes the system.
> I can do the following commands only twice, max. three times, before the 
> server crashes.

You need these two patches:

b2464c422fb44275deeb5770b668351860f68e0e
"x86: hold mm->page_table_lock while doing vmalloc_sync"
a8bf92faf72dba6e0dd2130256cb81c3e68f672b
"vmalloc: eagerly clear ptes on vunmap".


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