RE: [Xen-devel] [PATCH] small adjustment to asm constraints for c/s19400

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

>>> "Lu, Guanqun" <guanqun.lu@xxxxxxxxx> 30.03.09 10:56 >>>
>On Monday, March 30, 2009 4:45 PM Keir Fraser wrote:
>
>> On 30/03/2009 05:45, "Lu, Guanqun" <guanqun.lu@xxxxxxxxx> wrote:
>> 
>>> With this adjustment or previous patch 19400, S3 still fails on 64
>>> xen / 32 dom0. Do you have any idea what will cause this problem?
>> 
>> Does it still fail at the LTR? Does the alternative fix of settign
>> the type to 9 rather than 11 work?
>> 
>>  -- Keir
>
>It doesn't fail at the LTR.
>Xen resumes back, but dom0 hangs there(technically speaking, it doen't hang, 
>eip changes, but can't come back to shell console),
>I used xen serial line to dump the dom0 registers,
>the eip it runs to from time to time is 'general_protection' in dom0.

Since under normal circumstances GP faults are rare, why don't you just
print out the faulting vCPU's state from Xen at the point where the fault
gets forwarded to the guest? That'll tell you exactly what the guest is
dying on.

Jan


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