Re: [PATCH] proc: task_mmu bug fix.

[Rafael J. Wysocki]

On Wednesday 01 March 2006 13:49, Eric W. Biederman wrote:
> Andrew Morton <akpm@xxxxxxxx> writes:
> 
> > ebiederm@xxxxxxxxxxxx (Eric W. Biederman) wrote:
> >>
> >> This should fix the big bug that has been crashing kernels when
> >>  fuser is called.  At least it is the bug I observed here.  It seems
> >>  you need the right access pattern on /proc/<pid>/maps to trigger this.
> >
> > Thanks.  Do you think this is likely to fix the crashes reported by
> > Laurent, Jesper, Paul, Rafael and Martin?
> 
> So I haven't tracked down all of the bug reports yet.  But the
> few bits I have seen make it likely.  First the task_mmu change
> was one of the largest change in logic I had to make.  Second
> the ugly bug reports seem to be about an extra decrement.  Third
> it seems to be my task_ref work that is the most implicated.
> 
> I will certainly follow and see what I can do to confirm that I have
> gotten everything.

I can confirm it fixes the problem that I have reported.

Thanks a lot,
Rafael
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