Pekka Enberg a écrit : > On Thu, Sep 3, 2009 at 5:18 PM, Eric Dumazet<eric.dumazet@xxxxxxxxx> wrote: >> Here is the second patch (RCU thing). Stable candidate >> >> [PATCH] slub: Fix kmem_cache_destroy() with SLAB_DESTROY_BY_RCU >> >> kmem_cache_destroy() should call rcu_barrier() *after* kmem_cache_close() >> and *before* sysfs_slab_remove() or risk rcu_free_slab() >> being called after kmem_cache is deleted (kfreed). >> >> rmmod nf_conntrack can crash the machine because it has to >> kmem_cache_destroy() a SLAB_DESTROY_BY_RCU enabled cache. > > Do we have a bugzilla URL for this? Well, I can crash my 2.6.30.5 machine just doing rmmod nf_conntrack (You'll need CONFIG_SLUB_DEBUG_ON or equivalent) Original Zdenek report : http://thread.gmane.org/gmane.linux.kernel/876016/focus=876086 > >> Reported-by: Zdenek Kabelac <zdenek.kabelac@xxxxxxxxx> >> Signed-off-by: Eric Dumazet <eric.dumazet@xxxxxxxxx> >> Acked-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> > > OK, this is in for-next now and queued for 2.6.31. If you guys want to > fix this in a different way, lets do that in 2.6.32. Seems the right thing IMHO -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
