Messages in this thread | | | Date | Tue, 06 Apr 2010 10:38:18 -0400 | From | Rik van Riel <> | Subject | Re: Ugly rmap NULL ptr deref oopsie on hibernate (was Linux 2.6.34-rc3) |
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On 04/06/2010 04:53 AM, KOSAKI Motohiro wrote:
> Today, I've reviewed this patch carefully. but I haven't found any bug.
> Also, I've runned stress workload with shrink_all_memory() today. but > I couldn't reproduce the issue. hmm.. (perhaps I'm no lucky guy. > I'm frequently fail to reproduce) > > I'll continue to work.
My status with this bug is the same - I have gone through the code from all angles, but have not found any other bugs yet (except for that leak - which could leave invalid pointers behind).
This makes me wonder if perhaps the bug is a side effect of something Borislav (and the other reproducers) have in their kernel configuration, which we do not have.
Another (unlikely) thing is that the fix for the leak makes the bug go away. Yes, very unlikely.
Borislav, could you please send us your .config ?
Also, if you have the time, could you try out the patch (-v2) I mailed in a little up this thread that fixes the memory leak in anon_vma_fork?
I suspect it should not change anything, but it could be useful to rule out anyway.
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