From: Valdis.Kletnieks@vt.edu
To: Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Patrick McHardy <kaber@trash.net>,
"David S. Miller" <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org, netfilter-devel@vger.kernel.org,
netdev@vger.kernel.org
Subject: mmotm 2010-04-28 - RCU whinges
Date: Sun, 02 May 2010 13:46:34 -0400 [thread overview]
Message-ID: <5702.1272822394@localhost> (raw)
In-Reply-To: Your message of "Wed, 28 Apr 2010 16:53:32 PDT." <201004290021.o3T0L04Y028017@imap1.linux-foundation.org>
[-- Attachment #1: Type: text/plain, Size: 1844 bytes --]
On Wed, 28 Apr 2010 16:53:32 PDT, akpm@linux-foundation.org said:
> The mm-of-the-moment snapshot 2010-04-28-16-53 has been uploaded to
>
> http://userweb.kernel.org/~akpm/mmotm/
I thought we swatted all these, hit another one...
[ 9.131490] ctnetlink v0.93: registering with nfnetlink.
[ 9.131535]
[ 9.131535] ===================================================
[ 9.131704] [ INFO: suspicious rcu_dereference_check() usage. ]
[ 9.131794] ---------------------------------------------------
[ 9.131883] net/netfilter/nf_conntrack_ecache.c:88 invoked rcu_dereference_check() without protection!
[ 9.131977]
[ 9.131977] other info that might help us debug this:
[ 9.131978]
[ 9.132218]
[ 9.132219] rcu_scheduler_active = 1, debug_locks = 0
[ 9.132434] 1 lock held by swapper/1:
[ 9.132519] #0: (nf_ct_ecache_mutex){+.+...}, at: [<ffffffff8148922d>] nf_conntrack_register_notifier+0x1a/0x75
[ 9.132938]
[ 9.132939] stack backtrace:
[ 9.133129] Pid: 1, comm: swapper Tainted: G W 2.6.34-rc5-mmotm0428 #1
[ 9.133220] Call Trace:
[ 9.133319] [<ffffffff81064832>] lockdep_rcu_dereference+0xaa/0xb2
[ 9.133410] [<ffffffff81489250>] nf_conntrack_register_notifier+0x3d/0x75
[ 9.133521] [<ffffffff81b5a157>] ctnetlink_init+0x71/0xd5
[ 9.133627] [<ffffffff81b5a0e6>] ? ctnetlink_init+0x0/0xd5
[ 9.133735] [<ffffffff810001ef>] do_one_initcall+0x59/0x14e
[ 9.133843] [<ffffffff81b2e68a>] kernel_init+0x144/0x1ce
[ 9.133949] [<ffffffff81003414>] kernel_thread_helper+0x4/0x10
[ 9.134060] [<ffffffff81598a40>] ? restore_args+0x0/0x30
[ 9.134196] [<ffffffff81b2e546>] ? kernel_init+0x0/0x1ce
[ 9.134328] [<ffffffff81003410>] ? kernel_thread_helper+0x0/0x10
[ 9.134530] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 9.134655] TCP bic registered
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next parent reply other threads:[~2010-05-02 17:46 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <201004290021.o3T0L04Y028017@imap1.linux-foundation.org>
2010-05-02 17:46 ` Valdis.Kletnieks [this message]
2010-05-03 5:38 ` mmotm 2010-04-28 - RCU whinges Eric Dumazet
2010-05-03 5:41 ` Eric Dumazet
2010-05-03 5:43 ` Eric Dumazet
2010-05-03 5:55 ` David Miller
2010-05-10 15:40 ` Patrick McHardy
2010-05-10 15:56 ` Eric Dumazet
2010-05-10 15:57 ` Eric Dumazet
2010-05-10 16:03 ` Patrick McHardy
2010-05-10 16:04 ` Patrick McHardy
2010-05-10 15:57 ` Paul E. McKenney
2010-05-10 16:12 ` David Miller
2010-05-10 16:27 ` Patrick McHardy
2010-05-03 14:30 ` Valdis.Kletnieks
2010-05-03 14:48 ` Eric Dumazet
2010-05-03 14:58 ` Eric Dumazet
2010-05-03 15:29 ` Valdis.Kletnieks
2010-05-03 15:43 ` Paul E. McKenney
2010-05-03 16:14 ` Eric Dumazet
2010-05-03 18:16 ` Paul E. McKenney
2010-05-03 19:46 ` [PATCH net-next-2.6] net: if6_get_next() fix Eric Dumazet
2010-05-03 20:09 ` David Miller
2010-05-03 20:13 ` Eric Dumazet
2010-05-03 20:24 ` David Miller
2010-05-03 20:50 ` Eric Dumazet
2010-05-03 22:17 ` David Miller
2010-05-03 22:48 ` Paul E. McKenney
2010-05-03 22:52 ` Paul E. McKenney
2010-05-03 22:54 ` David Miller
2010-05-10 16:53 ` mmotm 2010-04-28 - RCU whinges Patrick McHardy
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