[Xen-devel] Re: [bisected] 2.6.31 regression: fails to boot as xen guest

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 08/25/09 11:25, Ingo Molnar wrote:
> * Arnd Hannemann <hannemann@xxxxxxxxxxxxxxxxxxx> wrote:
>
>   
>> Pekka Enberg wrote:
>>     
>>> On Tue, 2009-08-25 at 19:49 +0200, Arnd Hannemann wrote:
>>>       
>>>> Hi Pekka,
>>>>
>>>> Pekka Enberg wrote:
>>>>         
>>>>> On Tue, 2009-08-25 at 18:49 +0200, Arnd Hannemann wrote:
>>>>>           
>>>>>>> Thanks for doing the bisect! Can we also see your .config
>>>>>>> also?
>>>>>>>               
>>>>>> Config for -rc7 is attached. My bisect configs were based on
>>>>>> that
>>>>>>             
>>>>> Thanks! While we wait for the Xen people, you can try the
>>>>> following patch to see if we can narrow the bug down to
>>>>> trap_init().
>>>>>           
>>>> Yes seems to be trap_init(). -rc7 with this patch applied boots up
>>>> to the prompt.
>>>>         
>>> Thanks for testing! Ingo, what do you think of the following patch?
>>> AFAICT, x86-32 is the only architecture playing with traps in
>>> mem_init() so this should be the safest fix for 2.6.31.
>>>       
>> Hmm, -rc7 + this fix does not work for me :-/
>> Still hangs before any output...
>>     
> does earlyprintk=vga tell you anything about precisely where it 
> hangs?
>   

It's a Xen domain, so it should be earlyprintk=xen

    J

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