On Tue, Oct 30, 2012 at 5:33 PM, Steven Rostedt <rost...@goodmis.org> wrote:
> From: Thomas Gleixner <t...@linutronix.de>
>
> The netfilter code relies only on the implicit semantics of
> local_bh_disable() for serializing wt_write_recseq sections. RT breaks
> that and needs explicit serialization here.
>
> Reported-by: Peter LaDow <pet...@gocougs.wsu.edu>
> Signed-off-by: Thomas Gleixner <t...@linutronix.de>

> diff --git a/include/linux/locallock.h b/include/linux/locallock.h
> index f1804a3..a5eea5d 100644

> diff --git a/include/linux/netfilter/x_tables.h 
> b/include/linux/netfilter/x_tables.h
> index 32cddf7..bed90da2 100644

> diff --git a/net/netfilter/core.c b/net/netfilter/core.c
> index 899b71c..5db16ea 100644

I'm trying these out right now.  We've applied these patches to
3.0.36-rt58 (rather than pull in the full 3.0.48-rt72 -- too much risk
for us right now to do a full kernel change).  I am setting up a
3.0.48-rt72-rc1 fixture as well to test the release candidate.

Thanks,
Pete
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