My panic in amd64/pmap

Larry Rosenman ler at lerctr.org
Fri Jan 18 15:09:27 UTC 2013


On 2013-01-18 08:17, Andriy Gapon wrote:
> on 17/01/2013 21:50 Larry Rosenman said the following:
>> I've now seen this panic:
>>  pmap_insert_pt_page: pindex already inserted
>>
>> on 9.1-RELEASE, 9.1-STABLE, and 10.0-CURRENT
>>
>> I've got vmcore's from the 9.1-STABLE and 10.0-CURRENT VM's 
>> available
>> as well as sources.
>>
>> I have the core.txt.* files available at:
>> http://www.lerctr.org/~ler/core.txt.0  (10.0)
>> http://www.lerctr.org/~ler/core.txt.2  (9.1-S)
>>
>> I'm not sure what other debug info you need.
>>
>> I can provide SSH access to both VM's as well as the host.
>>
>> These are all in VirtualBox 4.2.6 VM's
>>
>> Any help would be appreciated.
>
> Hmm, I wonder if VirtualBox is hitting the same popcnt bug that was
> fixed in qemu...
>
> Could you please try a patch from here
> http://thread.gmane.org/gmane.comp.emulators.qemu/174532/focus=174567 
> ?
>
> It should be applied to src/recompiler/target-i386/translate.c, make
> sure that it
> goes to a section marked as 'case 0x1b8: /* SSE4.2 popcnt */'.

Should this be on the host or the guest?


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640 (c)     E-Mail: ler at lerctr.org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893


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