Re: Ugly rmap NULL ptr deref oopsie on hibernate (was Linux2.6.34-rc3)

[Andrew Morton]

On Tue, 6 Apr 2010 11:28:52 -0700 (PDT)
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:

> For example, maybe some list corruption causes us to do that 
> "anon_vma_chain_link()" _twice_ on the same avc entry. So we do that 
> "list_add_tail(&avc->same_anon_vma, &anon_vma->head);" on an entry that 
> already had "same_anon_vma" on one list.

The lib/list_debug.c stuff might detect such things.  I wonder if
either Borislav or Steinar had CONFIG_DEBUG_LIST enabled?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/