Re: kernel BUG at lib/radix-tree.c:473!

[Jeremy Fitzhardinge]

Hugh Dickins wrote:
> In both cases it's handling a page fault: I'm curious as to what kind
> of vma this fault is occurring on.  Could you devise a way of getting
> us /proc/<pid>/maps output, together with the faulting address, when
> it hits one of these BUGs?  Or should I try to put together a patch
> for that?
>   

Irritatingly, it looks like the i386 register dump doesn't include cr2.  
My 64-bit dump has cr2 as 00007fb12cb2a000 which is a good solid 
usermode address.  I'll run X under strace to see if that gives a clue 
to what it corresponds to.

   J
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