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Date: Thu, 12 Aug 2010 12:37:58 -0400
From: Valdis.Kletnieks@...edu
To: Andrew Morton <akpm@...ux-foundation.org>, davem@...emloft.net,
jeffrey.t.kirsher@...el.com, jesse.brandeburg@...el.com,
kaber@...sh.net, jengelh@...ozas.de, eric.dumazet@...il.com
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
e1000-devel@...ts.sourceforge.net, netfilter@...r.kernel.org
Subject: mmotm 2010-08-11 - lockdep whinges at e1000e driver ifconfig up
On Wed, 11 Aug 2010 16:10:49 PDT, akpm@...ux-foundation.org said:
> The mm-of-the-moment snapshot 2010-08-11-16-10 has been uploaded to
>
> http://userweb.kernel.org/~akpm/mmotm/
Not sure if it's an e1000e bug, or an iptables bug that happened to trip on
like the first few packets accepted after the interface came up, so I'll cc:
everybody and let ya'll fight over it. :)
[ 431.011194] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
[ 431.062183] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
[ 431.064607] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 432.691161] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 432.691177] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO
[ 432.695461] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 432.697278]
[ 432.697279] =================================
[ 432.697477] [ INFO: inconsistent lock state ]
[ 432.697581] 2.6.35-mmotm0811 #1
[ 432.697682] ---------------------------------
[ 432.697785] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 432.697890] kworker/0:0/0 [HC0[0]:SC1[2]:HE1:SE0] takes:
[ 432.697994] (&(&lock->lock)->rlock){+.?...}, at: [<ffffffff814d39c8>] ip6t_do_table+0xc1/0x646
[ 432.698028] {SOFTIRQ-ON-W} state was registered at:
[ 432.698028] [<ffffffff8106762f>] __lock_acquire+0x3a3/0xd6a
[ 432.698028] [<ffffffff81068514>] lock_acquire+0x10a/0x130
[ 432.698028] [<ffffffff81557cd9>] _raw_spin_lock+0x36/0x45
[ 432.698028] [<ffffffff814d3375>] xt_info_wrlock+0x1c/0x1e
[ 432.698028] [<ffffffff814d48df>] get_counters+0x93/0x14a
[ 432.698028] [<ffffffff814d49c3>] alloc_counters.clone.3+0x2d/0x41
[ 432.698028] [<ffffffff814d4f98>] do_ip6t_get_ctl+0x110/0x367
[ 432.698028] [<ffffffff814402a7>] nf_sockopt+0x5c/0x88
[ 432.698028] [<ffffffff814402e6>] nf_getsockopt+0x13/0x15
[ 432.698028] [<ffffffff814ba05e>] ipv6_getsockopt+0x94/0xc3
[ 432.698028] [<ffffffff814c1175>] rawv6_getsockopt+0x48/0x54
[ 432.698028] [<ffffffff8141533a>] sock_common_getsockopt+0xf/0x11
[ 432.698028] [<ffffffff814147dd>] sys_getsockopt+0x75/0x93
[ 432.698028] [<ffffffff8100272b>] system_call_fastpath+0x16/0x1b
[ 432.698028] irq event stamp: 3554312
[ 432.698028] hardirqs last enabled at (3554312): [<ffffffff8103fcb9>] _local_bh_enable_ip+0x139/0x178
[ 432.698028] hardirqs last disabled at (3554311): [<ffffffff8103fc3a>] _local_bh_enable_ip+0xba/0x178
[ 432.698028] softirqs last enabled at (3554260): [<ffffffff81040282>] __do_softirq+0x273/0x289
[ 432.698028] softirqs last disabled at (3554277): [<ffffffff8100364c>] call_softirq+0x1c/0x28
[ 432.698028]
[ 432.698028] other info that might help us debug this:
[ 432.698028] 3 locks held by kworker/0:0/0:
[ 432.698028] #0: (&idev->mc_ifc_timer){+.-...}, at: [<ffffffff810468f9>] run_timer_softirq+0x1d2/0x442
[ 432.698028] #1: (rcu_read_lock){.+.+..}, at: [<ffffffff814c3c2a>] rcu_read_lock+0x0/0x35
[ 432.698028] #2: (rcu_read_lock){.+.+..}, at: [<ffffffff8143e840>] rcu_read_lock+0x0/0x35
[ 432.698028]
[ 432.698028] stack backtrace:
[ 432.698028] Pid: 0, comm: kworker/0:0 Not tainted 2.6.35-mmotm0811 #1
[ 432.698028] Call Trace:
[ 432.698028] <IRQ> [<ffffffff810670a2>] valid_state+0x17c/0x18e
[ 432.698028] [<ffffffff81066967>] ? check_usage_forwards+0x0/0x87
[ 432.698028] [<ffffffff81067193>] mark_lock+0xdf/0x1d8
[ 432.698028] [<ffffffff810675b1>] __lock_acquire+0x325/0xd6a
[ 432.698028] [<ffffffff8106768f>] ? __lock_acquire+0x403/0xd6a
[ 432.698028] [<ffffffff810687fc>] ? mark_held_locks+0x50/0x72
[ 432.698028] [<ffffffff814d39c8>] ? ip6t_do_table+0xc1/0x646
[ 432.698028] [<ffffffff81068514>] lock_acquire+0x10a/0x130
[ 432.698028] [<ffffffff814d39c8>] ? ip6t_do_table+0xc1/0x646
[ 432.698028] [<ffffffff8103fce6>] ? _local_bh_enable_ip+0x166/0x178
[ 432.698028] [<ffffffff81557cd9>] _raw_spin_lock+0x36/0x45
[ 432.698028] [<ffffffff814d39c8>] ? ip6t_do_table+0xc1/0x646
[ 432.698028] [<ffffffff814d39c8>] ip6t_do_table+0xc1/0x646
[ 432.698028] [<ffffffff8103fce6>] ? _local_bh_enable_ip+0x166/0x178
[ 432.698028] [<ffffffff8103fd10>] ? local_bh_enable+0xd/0xf
[ 432.698028] [<ffffffff8144234b>] ? nf_conntrack_in+0x4a9/0x5b9
[ 432.698028] [<ffffffff814d5ee7>] ip6table_filter_hook+0x17/0x1c
[ 432.698028] [<ffffffff8143ec43>] nf_iterate+0x41/0x84
[ 432.698028] [<ffffffff814c3ec5>] ? dst_output+0x0/0x70
[ 432.698028] [<ffffffff8143ecf9>] nf_hook_slow+0x73/0xde
[ 432.698028] [<ffffffff814c3ec5>] ? dst_output+0x0/0x70
[ 432.698028] [<ffffffff8104710a>] ? msleep_interruptible+0x5b/0x72
[ 432.698028] [<ffffffff814c508e>] NF_HOOK.clone.21+0x3e/0x52
[ 432.698028] [<ffffffff81499c6c>] ? xfrm_lookup+0x11/0x2e
[ 432.698028] [<ffffffff814c531f>] mld_sendpack+0x27d/0x3dd
[ 432.698028] [<ffffffff814c5ad6>] mld_ifc_timer_expire+0x1ca/0x207
[ 432.698028] [<ffffffff810469eb>] run_timer_softirq+0x2c4/0x442
[ 432.698028] [<ffffffff810468f9>] ? run_timer_softirq+0x1d2/0x442
[ 432.698028] [<ffffffff81059222>] ? __run_hrtimer+0x1ec/0x234
[ 432.698028] [<ffffffff814c590c>] ? mld_ifc_timer_expire+0x0/0x207
[ 432.698028] [<ffffffff81040080>] ? __do_softirq+0x71/0x289
[ 432.698028] [<ffffffff81040155>] __do_softirq+0x146/0x289
[ 432.698028] [<ffffffff810a29bc>] ? time_hardirqs_off+0x1b/0x2f
[ 432.698028] [<ffffffff8100364c>] call_softirq+0x1c/0x28
[ 432.698028] [<ffffffff81004bc3>] do_softirq+0x44/0xf1
[ 432.698028] [<ffffffff8104035a>] irq_exit+0x4a/0xb4
[ 432.698028] [<ffffffff8101a3dd>] smp_apic_timer_interrupt+0x79/0x87
[ 432.698028] [<ffffffff81003113>] apic_timer_interrupt+0x13/0x20
[ 432.698028] <EOI> [<ffffffff81277630>] ? acpi_idle_enter_simple+0x122/0x15a
[ 432.698028] [<ffffffff8127762b>] ? acpi_idle_enter_simple+0x11d/0x15a
[ 432.698028] [<ffffffff813b9c3c>] cpuidle_idle_call+0x9b/0x15d
[ 432.698028] [<ffffffff81000c73>] cpu_idle+0x85/0x169
[ 432.698028] [<ffffffff81b5e906>] start_secondary+0x1b1/0x1b5
[ 497.031095] ADDRCONF(NETDEV_UP): wlan0: link is not ready
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