Re: [PATCH] proc: task_mmu bug fix.

Rafael J. Wysocki
2006-03-01T13:15:55Z

On Wednesday 01 March 2006 13:49, Eric W. Biederman wrote:
> Andrew Morton <akpm@osdl.org> writes:
>
> > ebiederm@xmission.com (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