Messages in this thread | | | Subject | Re: [PATCH] netfilter: per netns nf_conntrack_cachep | From | Jon Masters <> | Date | Tue, 02 Feb 2010 11:46:32 -0500 |
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On Tue, 2010-02-02 at 06:35 -0500, Jon Masters wrote:
> I think there's something more fundamental going on here.
What happens is the conntrack code attempts to free nf_conntrack_untracked back into the SL[U]B cache from which it allocates other ct's. There's just one problem...that's a static struct not from the cache. So, this is why we end up with the SLAB being corrupted and the address immediately following the nf_conntrack_untracked being corrupted.
I shoved some debug comments into the destroy code to see if we were trying to free nf_conntrack_untracked, and bingo. I have shoved a panic in there now, will send you a backtrace.
Jon.
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