Re: ipv4: crash at leaf_walk_rcu

2013-07-31 Thread Paul E. McKenney
On Wed, Jul 31, 2013 at 03:13:23PM +0200, Hannes Frederic Sowa wrote: > On Wed, Jul 31, 2013 at 05:55:13AM -0700, Paul E. McKenney wrote: > > On Wed, Jul 31, 2013 at 04:40:47PM +0530, vinayak menon wrote: > > > Hi, > > > > > > A crash was seen on 3.4.5 kernel during some random wlan operations. >

Re: ipv4: crash at leaf_walk_rcu

2013-07-31 Thread vinayak menon
On Wed, Jul 31, 2013 at 6:43 PM, Hannes Frederic Sowa wrote: > On Wed, Jul 31, 2013 at 05:55:13AM -0700, Paul E. McKenney wrote: >> On Wed, Jul 31, 2013 at 04:40:47PM +0530, vinayak menon wrote: >> > Hi, >> > >> > A crash was seen on 3.4.5 kernel during some random wlan operations. >> > >> > CPU:

Re: ipv4: crash at leaf_walk_rcu

2013-07-31 Thread Hannes Frederic Sowa
On Wed, Jul 31, 2013 at 05:55:13AM -0700, Paul E. McKenney wrote: > On Wed, Jul 31, 2013 at 04:40:47PM +0530, vinayak menon wrote: > > Hi, > > > > A crash was seen on 3.4.5 kernel during some random wlan operations. > > > > CPU: Single core ARM Cortex A9. > > > > fib_route_seq_next was called wi

Re: ipv4: crash at leaf_walk_rcu

2013-07-31 Thread Paul E. McKenney
On Wed, Jul 31, 2013 at 04:40:47PM +0530, vinayak menon wrote: > Hi, > > A crash was seen on 3.4.5 kernel during some random wlan operations. > > CPU: Single core ARM Cortex A9. > > fib_route_seq_next was called with second argument (void *v) as 0xd6e3e360 > which is a "freed" object of the "ip_

ipv4: crash at leaf_walk_rcu

2013-07-31 Thread vinayak menon
Hi, A crash was seen on 3.4.5 kernel during some random wlan operations. CPU: Single core ARM Cortex A9. fib_route_seq_next was called with second argument (void *v) as 0xd6e3e360 which is a "freed" object of the "ip_fib_trie" cache. I confirmed that the object was freed with crash utility. Seq