Merging 64 bit changes to -HEAD

[Luiz Otavio O Souza]

On Jul 2, 2010, at 8:27 AM, Jayachandran C. wrote:
> On Fri, Jul 2, 2010 at 4:34 PM, Luiz Otavio O Souza <lists.br at gmail.com> wrote:
>> On Jul 1, 2010, at 5:04 PM, Jayachandran C. wrote:
>>>> Looks like I was on the wrong track, it now looks like the pagemask
>>>> maybe the cause.  My suspicion is that the bootloader setups a
>>>> pagemask and we never clear it because all the operations save and
>>>> restore the mask. As far as I can see the TLB exception handler will
>>>> not update pagemask.
>>>> 
>>>> Juli - any comments on this? Do you need to save/restore pagemask for
>>>> some reason, otherwise I will take out the part from tlb.c.  Will send
>>>> out a patch a bit later.
>>> 
>>> Okay - here's hopefully the final patch. Let me know if it boots up.
>>> 
>>> Thanks,
>>> JC.
>>> <tlb.c-pagemask-remove.diff>
>> 
>> JC,
>> 
>> This patch boots without any problem, thank you !
> 
> At last! :) Thanks for testing.  Will get it approved, will check-in
> later today, hopefully.
> 
> JC.

JC,

Probably too early to talk...

The buildworld is crashing with this backtrace: http://pastebin.com/1M9h1B1v

The function at 8033ba14 is vm_pageout().

Let me try a little bit with older kernels just to make sure.

Luiz