[Fedora-xen] 2.6.31-1.2.65.xendom0.fc12.x86_64 crash on boot

[Charles Gruener]

Well, for some reason, the BIOS had NX disabled by default.  After  
enabling, I can now get further.  I've attached the output I'm now  
seeing.  Could this now be related to the myoung kernel?

Many thanks.

Charles

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On Sep 15, 2009, at 3:58 PM, Jeremy Fitzhardinge wrote:

> On 09/15/09 04:39, Pasi K?rkk?inen wrote:
>>> (XEN) mm.c:1697:d0 Bad L1 flags 800000
>>>
>
> This looks like something trying to set the NX bit in a mapping, which
> should be fine on this processor.  Could it be disabled in BIOS or
> something?
>
>> Jeremy: More info about the dom0 kernel crash here..
>>
>> -- Pasi
>>
>> On Tue, Sep 15, 2009 at 01:25:35PM +0100, M A Young wrote:
>>
>>>>
>>>
>>>>>>
>>>>>> gdb vmlinux
>>>>>> x/i ffffffff81a017f1
>>>>
>>>>
>>>> That should of course have been
>>>> (gdb) x/i 0xffffffff81a017f1
>>>> 0xffffffff81a017f1 <xen_load_gdt_boot+171>:	ud2a
>>>
>
> Hm, OK.  Maybe the problem is that we haven't enabled NX in EFER at  
> that
> early point.   I'll cook something up.
>
>    J