Re: [Xen-devel] dom0 alignment check panic due to EFLAGS.AC been set

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sat, Jun 01, 2013 at 05:27:27PM +0800, Ma JieYue wrote:
> 
> We found some mail may be related to this problem,
> 
> http://lists.xen.org/archives/html/xen-devel/2013-01/msg02285.html
> http://old-list-archives.xen.org/archives/html/xen-devel/2011-11/msg00827.html
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=660425
> 
> but all these posts reported a domU panic (maybe PV domU) , while mine
> is related to dom0
> 
> 
> The Xen version is 4.0.1 and dom0 kernel comes from jeremy's git tree
> 

I suggest upgrading your Xen hypervisor.. 4.0.1 is very old,
and not even the latest on 4.0.x branch. 

Currently Xen 4.2.2 is the latest stable release.

> http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=commit;h=ae333e97552c81ab10395ad1ffc6d6daaadb144a
> 
> It is xen-2.6.32.36 version of jeremy's dom0 git tree, so I guess
> maybe it is too old to be related with CPU SMAP feature
> 

Jeremy's xen.git is not maintained anymore, so it doesn't have the latest 
xen related fixes and features, and also it's lacking security fixes, 
so I don't recommend using it anymore.

You should switch to mainline Linux 3.x kernel, which should be better in every 
way. 

> 
> 
> Any help is appreciated, thanks.
> 
> 
> Best regards,
> 
> jerry
> 


-- Pasi


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