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SubjectRe: [BUG 3.12.rc4] Oops: unable to handle kernel paging request during shutdown
On Tue, Oct 15, 2013 at 08:40:25AM +0200, Ingo Molnar wrote:
>
> * Frederic Weisbecker <fweisbec@gmail.com> wrote:
>
> > I've been thinking that CONFIG_DEBUG_LIST could help. Unfortunately it's
> > good to spot list APIs misuse but, if Linus is right, the problem may be
> > that the list belongs to an object that has been freed, and I believe
> > that won't detect such a thing.
>
> Use-after free should be reliably detectable via CONFIG_DEBUG_PAGEALLOC=y.
>
> A couple of years ago I wrote a list debugging beast that would catch
> use-after-free mishaps (sent it to lkml too IIRC), but it was a bit
> complex and I never found the time to nurse it upstream.

Ok, well CONFIG_DEBUG_PAGEALLOC=y should work for list as for anything, right?

Thanks.

>
> Thanks,
>
> Ingo


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