Messages in this thread | | | Date | Tue, 02 Feb 2010 17:48:22 +0100 | From | Patrick McHardy <> | Subject | Re: [PATCH] netfilter: per netns nf_conntrack_cachep |
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Jon Masters wrote: > 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.
That shouldn't happen, the untracked conntrack is initialized to a refcount of 1, which is never released.
> 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.
Thanks.
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