Re: [PATCH] mm: fix possible cause of a page_mapped BUG

[Robert ÅwiÄcki]

On Tue, Apr 12, 2011 at 8:59 PM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, Apr 12, 2011 at 10:19 AM, Linus Torvalds
> <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>>
>> THIS IS A HACKY AND UNTESTED PATCH!
>
> .. and here is a rather less hacky, but still equally untested patch.
> It moves the stack guard page handling into __get_user_pages() itself,
> and thus avoids the whole problem.
>
> This one I could easily see myself committing. Assuming I get some
> ack's and testing..

I'm testing currently with the old one, w/o any symptoms of problems
by now, but it's not a meaningful period of time. I can try with the
new one, leave it over(European)night, and let you know tomorrow.

-- 
Robert ÅwiÄcki
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