Re: 2.6.21-rc5-mm4
From: Antonino A. Daplas
Date: Wed Apr 04 2007 - 20:57:18 EST
On Mon, 2007-04-02 at 22:47 -0700, Andrew Morton wrote:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc5/2.6.21-rc5-mm4/
>
> - The oops in git-net.patch has been fixed, so that tree has been restored.
> It is huge.
>
> - Added the device-mapper development tree to the -mm lineup (Alasdair
> Kergon). It is a quilt tree, living at
> ftp://ftp.kernel.org/pub/linux/kernel/people/agk/patches/2.6/editing/.
>
> - Added davidel's signalfd stuff.
>
>
>
I see this tracing (from the lock-dependency validator?) for several -mm
versions. This is from a Silan ethernet card (CONFIG_SC92031).
00:0b.0 Ethernet controller: Hangzhou Silan Microelectronics Co., Ltd.
Unknown device 2031 (rev 01)
Other than the tracing, I'm not having any problems.
Tony
======================================================
[ INFO: soft-safe -> soft-unsafe lock order detected ]
2.6.21-rc5-mm4-default #44
------------------------------------------------------
ip/3036 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire:
(&priv->lock){--..}, at: [<d886ad22>] sc92031_set_multicast_list
+0x14/0x2d [sc92031]
and this task is already holding:
(&dev->_xmit_lock){-...}, at: [<c02568b3>] dev_mc_upload+0x14/0x3a
which would create a new lock dependency:
(&dev->_xmit_lock){-...} -> (&priv->lock){--..}
but this new dependency connects a soft-irq-safe lock:
(&mc->mca_lock){-+..}
... which became soft-irq-safe at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<d8c53833>] mld_ifc_timer_expire+0x15b/0x21d [ipv6]
[<c011cbd6>] run_timer_softirq+0xf1/0x14e
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02ab3b9>] error_code+0x71/0x78
[<ffffffff>] 0xffffffff
to a soft-irq-unsafe lock:
(&priv->lock){--..}
... which became soft-irq-unsafe at:
... [<c012f649>] __lock_acquire+0x46b/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<d886b729>] sc92031_open+0xcc/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
other info that might help us debug this:
2 locks held by ip/3036:
#0: (rtnl_mutex){--..}, at: [<c02a9ea5>] mutex_lock+0x24/0x28
#1: (&dev->_xmit_lock){-...}, at: [<c02568b3>] dev_mc_upload+0x14/0x3a
the soft-irq-safe lock's dependencies:
-> (&mc->mca_lock){-+..} ops: 9 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<d8c53983>] igmp6_group_added+0x1b/0x120 [ipv6]
[<d8c54175>] ipv6_dev_mc_inc+0x2f9/0x346 [ipv6]
[<d8c42f7f>] ipv6_add_dev+0x232/0x240 [ipv6]
[<d8c1430b>] ____versions+0x1e8b/0xfffff9c8
[x_tables]
[<d8c141d4>] ____versions+0x1d54/0xfffff9c8
[x_tables]
[<c01365eb>] sys_init_module+0x1252/0x138f
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
in-softirq-W at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<d8c53833>] mld_ifc_timer_expire+0x15b/0x21d
[ipv6]
[<c011cbd6>] run_timer_softirq+0xf1/0x14e
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02ab3b9>] error_code+0x71/0x78
[<ffffffff>] 0xffffffff
hardirq-on-W at:
[<c012f61f>] __lock_acquire+0x441/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<d8c53983>] igmp6_group_added+0x1b/0x120 [ipv6]
[<d8c54175>] ipv6_dev_mc_inc+0x2f9/0x346 [ipv6]
[<d8c42f7f>] ipv6_add_dev+0x232/0x240 [ipv6]
[<d8c1430b>] ____versions+0x1e8b/0xfffff9c8
[x_tables]
[<d8c141d4>] ____versions+0x1d54/0xfffff9c8
[x_tables]
[<c01365eb>] sys_init_module+0x1252/0x138f
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
}
... key at: [<d8c75bbc>] __key.29988+0x0/0xfffe9535 [ipv6]
-> (&dev->_xmit_lock){-...} ops: 18 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<c02568b3>] dev_mc_upload+0x14/0x3a
[<c0253359>] dev_change_flags+0x31/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
hardirq-on-W at:
[<c012f61f>] __lock_acquire+0x441/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<c02568b3>] dev_mc_upload+0x14/0x3a
[<c0253359>] dev_change_flags+0x31/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
}
... key at: [<c05f0788>] __key.29726+0x0/0x8
-> (&rp->lock){++..} ops: 55 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<d88a810a>] rhine_get_stats+0x2d/0x9d
[via_rhine]
[<c025ab78>] rtnl_fill_ifinfo+0x2ea/0x432
[<c025b0d7>] rtmsg_ifinfo+0x63/0xe0
[<c025b18f>] rtnetlink_event+0x3b/0x3f
[<c012020a>] notifier_call_chain+0x2b/0x4a
[<c0120294>] __raw_notifier_call_chain
+0x19/0x1f
[<c01202b4>] raw_notifier_call_chain
+0x1a/0x1c
[<c025304c>] register_netdevice+0x2e0/0x2ea
[<c0254284>] register_netdev+0x40/0x4d
[<d88a7c8c>] rhine_init_one+0x495/0x652
[via_rhine]
[<c01d5951>] pci_device_probe+0x3c/0x61
[<c0223684>] driver_probe_device+0xe8/0x168
[<c0223831>] __driver_attach+0x77/0xb1
[<c0222b5a>] bus_for_each_dev+0x3a/0x5f
[<c02234c7>] driver_attach+0x19/0x1b
[<c0222e7f>] bus_add_driver+0x76/0x17e
[<c0223a60>] driver_register+0x79/0x7f
[<c01d5ac6>] __pci_register_driver+0x5c/0x8c
[<d883c06c>] __ksymtab_ac97_bus_type
+0x0/0xfffffff6 [ac97_bus]
[<c01365eb>] sys_init_module+0x1252/0x138f
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c012f58e>] __lock_acquire+0x3b0/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<d88a6b56>] rhine_interrupt+0x16a/0x696
[via_rhine]
[<c0142d2e>] handle_IRQ_event+0x1a/0x48
[<c014403e>] handle_level_irq+0x7c/0xc6
[<c01057eb>] do_IRQ+0x59/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c0123db9>] rcu_process_callbacks+0x15/0x26
[<c011a682>] tasklet_action+0x40/0x6c
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02ab3b9>] error_code+0x71/0x78
[<ffffffff>] 0xffffffff
in-softirq-W at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab158>] _spin_lock_irq+0x31/0x3e
[<d88a8614>] rhine_start_tx+0x1ad/0x244
[via_rhine]
[<c0253b4c>] dev_hard_start_xmit+0x216/0x274
[<c02606dc>] __qdisc_run+0xca/0x17f
[<c0255766>] dev_queue_xmit+0x155/0x26b
[<d8c52c05>] mld_sendpack+0x1f7/0x335 [ipv6]
[<d8c538ce>] mld_ifc_timer_expire
+0x1f6/0x21d [ipv6]
[<c011cbd6>] run_timer_softirq+0xf1/0x14e
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02ab3b9>] error_code+0x71/0x78
[<ffffffff>] 0xffffffff
}
... key at: [<d88ac180>] __key.21685+0x0/0xffffc5fa [via_rhine]
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab158>] _spin_lock_irq+0x31/0x3e
[<d88a8614>] rhine_start_tx+0x1ad/0x244 [via_rhine]
[<c0253b4c>] dev_hard_start_xmit+0x216/0x274
[<c02606dc>] __qdisc_run+0xca/0x17f
[<c0255766>] dev_queue_xmit+0x155/0x26b
[<d8c52c05>] mld_sendpack+0x1f7/0x335 [ipv6]
[<d8c538ce>] mld_ifc_timer_expire+0x1f6/0x21d [ipv6]
[<c011cbd6>] run_timer_softirq+0xf1/0x14e
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02ab3b9>] error_code+0x71/0x78
[<ffffffff>] 0xffffffff
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<c02569c5>] dev_mc_add+0x33/0x141
[<d8c539c0>] igmp6_group_added+0x58/0x120 [ipv6]
[<d8c54175>] ipv6_dev_mc_inc+0x2f9/0x346 [ipv6]
[<d8c42f7f>] ipv6_add_dev+0x232/0x240 [ipv6]
[<d8c43503>] addrconf_notify+0x47/0x7d0 [ipv6]
[<c0253ddc>] register_netdevice_notifier+0x35/0x5f
[<d8c14336>] ____versions+0x1eb6/0xfffff9c8 [x_tables]
[<d8c141d4>] ____versions+0x1d54/0xfffff9c8 [x_tables]
[<c01365eb>] sys_init_module+0x1252/0x138f
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
-> (&parent->list_lock){++..} ops: 14182 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c01637a4>] cache_alloc_refill+0x4f/0x44f
[<c0163d52>] kmem_cache_zalloc+0x50/0x97
[<c01643cc>] kmem_cache_create+0x166/0x447
[<c039804a>] kmem_cache_init+0x160/0x3c7
[<c0388ab4>] start_kernel+0x217/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c012f58e>] __lock_acquire+0x3b0/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c01630e3>] cache_flusharray+0x22/0xa5
[<c0163254>] kmem_cache_free+0x62/0x8e
[<c014c6cb>] mempool_free_slab+0x11/0x13
[<c014c731>] mempool_free+0x64/0x6c
[<c0185212>] bio_free+0x2d/0x31
[<c0185227>] bio_fs_destructor+0x11/0x13
[<c018534c>] bio_put+0x28/0x2a
[<c01839f2>] end_bio_bh_io_sync+0x39/0x3f
[<c018527c>] bio_endio+0x53/0x5b
[<c01b49fa>] __end_that_request_first
+0xcf/0x35d
[<c01b4ca3>] end_that_request_first+0xe/0x10
[<d895ec75>] ide_end_request+0x87/0xd1
[ide_core]
[<d8965d80>] ide_dma_intr+0x58/0x98 [ide_core]
[<d895f7fe>] ide_intr+0x16b/0x1cf [ide_core]
[<c0142d2e>] handle_IRQ_event+0x1a/0x48
[<c014403e>] handle_level_irq+0x7c/0xc6
[<c01057eb>] do_IRQ+0x59/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c010239b>] cpu_idle+0x44/0x5e
[<c0101110>] rest_init+0x21/0x25
[<c0388c22>] start_kernel+0x385/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
in-softirq-W at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c01630e3>] cache_flusharray+0x22/0xa5
[<c01631c4>] kfree+0x5e/0x8c
[<c0114875>] free_task+0x11/0x21
[<c01160c3>] __put_task_struct+0x10f/0x118
[<c01178cd>] delayed_put_task_struct+0x3e/0x45
[<c0123d3b>] __rcu_process_callbacks
+0x103/0x16c
[<c0123db9>] rcu_process_callbacks+0x15/0x26
[<c011a682>] tasklet_action+0x40/0x6c
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c01ed01e>] acpi_ps_alloc_op+0x5b/0x98
[<c01ecc85>] acpi_ps_parse_loop+0x6d9/0x714
[<c01ebf86>] acpi_ps_parse_aml+0x68/0x246
[<c01ed236>] acpi_ps_execute_method
+0x11f/0x1c1
[<c01ea44c>] acpi_ns_evaluate+0xa0/0x100
[<c01efba8>] acpi_ut_evaluate_object
+0x52/0x18c
[<c01e226e>] acpi_ev_match_prw_and_gpe
+0x1f/0xbe
[<c01eb6b9>] acpi_ns_walk_namespace+0xf9/0x114
[<c01e2216>] acpi_ev_initialize_gpe_block
+0x4d/0x86
[<c01dfe20>] acpi_ev_install_fadt_gpes
+0x27/0x47
[<c01f0ace>] acpi_enable_subsystem+0x83/0x8f
[<c039af8c>] acpi_init+0x57/0x1cd
[<c038872c>] kernel_init+0xb9/0x22a
[<c0104007>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
}
... key at: [<c05e5a88>] __key.17030+0x0/0x8
-> (&zone->lock){++..} ops: 6654 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c014dbc8>] free_pages_bulk+0x1a/0x195
[<c014de55>] free_hot_cold_page+0x112/0x156
[<c014dee4>] free_hot_page+0xd/0xf
[<c014df1e>] __free_pages+0x38/0x4a
[<c03977a4>] __free_pages_bootmem+0x61/0x65
[<c0395fb4>] free_all_bootmem_core
+0xd6/0x147
[<c0396035>] free_all_bootmem+0x10/0x12
[<c0393631>] mem_init+0x2a/0x2d0
[<c0388aaf>] start_kernel+0x212/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c012f58e>] __lock_acquire+0x3b0/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c014dbc8>] free_pages_bulk+0x1a/0x195
[<c014de55>] free_hot_cold_page+0x112/0x156
[<c014dee4>] free_hot_page+0xd/0xf
[<c014df1e>] __free_pages+0x38/0x4a
[<c014df50>] free_pages+0x20/0x22
[<c0163060>] kmem_freepages+0x9c/0xa4
[<c016331e>] slab_destroy+0x61/0x79
[<c01633ed>] free_block+0xb7/0xf4
[<c0163138>] cache_flusharray+0x77/0xa5
[<c0163254>] kmem_cache_free+0x62/0x8e
[<c014c6cb>] mempool_free_slab+0x11/0x13
[<c014c731>] mempool_free+0x64/0x6c
[<c0185212>] bio_free+0x2d/0x31
[<c0185227>] bio_fs_destructor+0x11/0x13
[<c018534c>] bio_put+0x28/0x2a
[<c01839f2>] end_bio_bh_io_sync+0x39/0x3f
[<c018527c>] bio_endio+0x53/0x5b
[<c01b49fa>] __end_that_request_first
+0xcf/0x35d
[<c01b4ca3>] end_that_request_first+0xe/0x10
[<d895ec75>] ide_end_request+0x87/0xd1
[ide_core]
[<d8965d80>] ide_dma_intr+0x58/0x98
[ide_core]
[<d895f7fe>] ide_intr+0x16b/0x1cf [ide_core]
[<c0142d2e>] handle_IRQ_event+0x1a/0x48
[<c014403e>] handle_level_irq+0x7c/0xc6
[<c01057eb>] do_IRQ+0x59/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c010239b>] cpu_idle+0x44/0x5e
[<c0101110>] rest_init+0x21/0x25
[<c0388c22>] start_kernel+0x385/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
in-softirq-W at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c014da1c>] __free_pages_ok+0xf6/0x278
[<c014df29>] __free_pages+0x43/0x4a
[<c014df50>] free_pages+0x20/0x22
[<c0163060>] kmem_freepages+0x9c/0xa4
[<c016331e>] slab_destroy+0x61/0x79
[<c01633ed>] free_block+0xb7/0xf4
[<c0163138>] cache_flusharray+0x77/0xa5
[<c01631c4>] kfree+0x5e/0x8c
[<c0114875>] free_task+0x11/0x21
[<c01160c3>] __put_task_struct+0x10f/0x118
[<c01178cd>] delayed_put_task_struct
+0x3e/0x45
[<c0123d3b>] __rcu_process_callbacks
+0x103/0x16c
[<c0123db9>] rcu_process_callbacks+0x15/0x26
[<c011a682>] tasklet_action+0x40/0x6c
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02a9e79>] __mutex_lock_slowpath
+0x238/0x240
[<c02a9ea5>] mutex_lock+0x24/0x28
[<c016c7b2>] do_lookup+0x69/0x13d
[<c016e6d6>] __link_path_walk+0x814/0xc69
[<c016eb74>] link_path_walk+0x49/0xbc
[<c016ee96>] do_path_lookup+0x18a/0x1dc
[<c016f822>] __path_lookup_intent_open
+0x44/0x75
[<c016f8c6>] path_lookup_open+0x21/0x27
[<c0169bc9>] open_exec+0x27/0xa5
[<c016aeaa>] do_execve+0x36/0x1f1
[<c01021a3>] sys_execve+0x2e/0x50
[<c0103d34>] syscall_call+0x7/0xb
[<ffffffff>] 0xffffffff
}
... key at: [<c05de598>] __key.20983+0x0/0x8
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c014da1c>] __free_pages_ok+0xf6/0x278
[<c014df29>] __free_pages+0x43/0x4a
[<c014df50>] free_pages+0x20/0x22
[<c0163060>] kmem_freepages+0x9c/0xa4
[<c016331e>] slab_destroy+0x61/0x79
[<c01633ed>] free_block+0xb7/0xf4
[<c0163138>] cache_flusharray+0x77/0xa5
[<c01631c4>] kfree+0x5e/0x8c
[<c0114875>] free_task+0x11/0x21
[<c01160c3>] __put_task_struct+0x10f/0x118
[<c01178cd>] delayed_put_task_struct+0x3e/0x45
[<c0123d3b>] __rcu_process_callbacks+0x103/0x16c
[<c0123db9>] rcu_process_callbacks+0x15/0x26
[<c011a682>] tasklet_action+0x40/0x6c
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02a9e79>] __mutex_lock_slowpath+0x238/0x240
[<c02a9ea5>] mutex_lock+0x24/0x28
[<c016c7b2>] do_lookup+0x69/0x13d
[<c016e6d6>] __link_path_walk+0x814/0xc69
[<c016eb74>] link_path_walk+0x49/0xbc
[<c016ee96>] do_path_lookup+0x18a/0x1dc
[<c016f822>] __path_lookup_intent_open+0x44/0x75
[<c016f8c6>] path_lookup_open+0x21/0x27
[<c0169bc9>] open_exec+0x27/0xa5
[<c016aeaa>] do_execve+0x36/0x1f1
[<c01021a3>] sys_execve+0x2e/0x50
[<c0103d34>] syscall_call+0x7/0xb
[<ffffffff>] 0xffffffff
-> (pgd_lock){....} ops: 119 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0110d8a>] pgd_ctor+0x25/0x7d
[<c0163aee>] cache_alloc_refill+0x399/0x44f
[<c016372d>] kmem_cache_alloc+0x50/0x78
[<c0110d1f>] pgd_alloc+0x15/0x17
[<c0114691>] mm_init+0xa6/0xcd
[<c0115bbd>] mm_alloc+0x2e/0x32
[<c016aedd>] do_execve+0x69/0x1f1
[<c01021a3>] sys_execve+0x2e/0x50
[<c0103d34>] syscall_call+0x7/0xb
[<ffffffff>] 0xffffffff
}
... key at: [<c0361cfc>] pgd_lock+0x1c/0x40
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0110d34>] pgd_dtor+0x13/0x44
[<c01632f0>] slab_destroy+0x33/0x79
[<c01633ed>] free_block+0xb7/0xf4
[<c0163138>] cache_flusharray+0x77/0xa5
[<c0163254>] kmem_cache_free+0x62/0x8e
[<c0110d08>] pgd_free+0x12/0x14
[<c011477d>] __mmdrop+0x1c/0x33
[<c02a8dce>] __sched_text_start+0x546/0x59f
[<c01188da>] do_wait+0x90e/0xa04
[<c0118a00>] sys_wait4+0x30/0x32
[<c0118a29>] sys_waitpid+0x27/0x29
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c01637a4>] cache_alloc_refill+0x4f/0x44f
[<c0163c19>] __kmalloc+0x75/0x9a
[<c024f856>] __alloc_skb+0x6b/0x11b
[<c024c162>] sock_alloc_send_skb+0x7c/0x1a9
[<d8c52299>] mld_newpack+0x5d/0x172 [ipv6]
[<d8c523d2>] add_grhead+0x24/0xa4 [ipv6]
[<d8c53072>] add_grec+0x32f/0x35a [ipv6]
[<d8c5389f>] mld_ifc_timer_expire+0x1c7/0x21d [ipv6]
[<c011cbd6>] run_timer_softirq+0xf1/0x14e
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c02ab3b9>] error_code+0x71/0x78
[<ffffffff>] 0xffffffff
the soft-irq-unsafe lock's dependencies:
-> (&priv->lock){--..} ops: 2 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<d886b729>] sc92031_open+0xcc/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
softirq-on-W at:
[<c012f649>] __lock_acquire+0x46b/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<d886b729>] sc92031_open+0xcc/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
hardirq-on-W at:
[<c012f61f>] __lock_acquire+0x441/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<d886b729>] sc92031_open+0xcc/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
}
... key at: [<d886e180>] __key.22056+0x0/0xffffd670 [sc92031]
-> (lweventlist_lock){....} ops: 1 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c025c17a>] linkwatch_fire_event+0x58/0xae
[<c02605e3>] netif_carrier_off+0x1a/0x1c
[<d886a650>] _sc92031_reset+0x1a5/0x1dd
[sc92031]
[<d886b730>] sc92031_open+0xd3/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
}
... key at: [<c037a19c>] lweventlist_lock+0x1c/0x28
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c025c17a>] linkwatch_fire_event+0x58/0xae
[<c02605e3>] netif_carrier_off+0x1a/0x1c
[<d886a650>] _sc92031_reset+0x1a5/0x1dd [sc92031]
[<d886b730>] sc92031_open+0xd3/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
-> (&cwq->lock){++..} ops: 8986 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0123109>] __queue_work+0x12/0x33
[<c0123152>] queue_work+0x28/0x33
[<c012293e>] call_usermodehelper_keys
+0xc5/0xea
[<c01bf6ca>] kobject_uevent_env+0x3d3/0x42b
[<c01bf72f>] kobject_uevent+0xd/0x12
[<c022184a>] device_add+0x32f/0x518
[<c0221a48>] device_register+0x15/0x19
[<c0221faa>] device_create+0x77/0x99
[<c039e0d0>] vtconsole_class_init+0x71/0xb5
[<c038872c>] kernel_init+0xb9/0x22a
[<c0104007>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c012f58e>] __lock_acquire+0x3b0/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0123109>] __queue_work+0x12/0x33
[<c0123152>] queue_work+0x28/0x33
[<c012316f>] schedule_work+0x12/0x14
[<c0229e72>] schedule_bh+0x15/0x17
[<c0229ff8>] floppy_interrupt+0x168/0x192
[<c022d014>] floppy_hardint+0x1c/0xbc
[<c0142d2e>] handle_IRQ_event+0x1a/0x48
[<c014403e>] handle_level_irq+0x7c/0xc6
[<c01057eb>] do_IRQ+0x59/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c010239b>] cpu_idle+0x44/0x5e
[<c0101110>] rest_init+0x21/0x25
[<c0388c22>] start_kernel+0x385/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
in-softirq-W at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0123109>] __queue_work+0x12/0x33
[<c01234b5>] delayed_work_timer_fn+0x17/0x19
[<c011cbd6>] run_timer_softirq+0xf1/0x14e
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c010239b>] cpu_idle+0x44/0x5e
[<c0101110>] rest_init+0x21/0x25
[<c0388c22>] start_kernel+0x385/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
}
... key at: [<c03e22e0>] __key.10619+0x0/0x8
-> (&q->lock){++..} ops: 54469 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab158>] _spin_lock_irq+0x31/0x3e
[<c02a8fb9>] wait_for_completion+0x29/0xaf
[<c012599d>] keventd_create_kthread
+0x32/0x62
[<c0125a30>] kthread_create+0x63/0x9e
[<c0394848>] cpu_callback+0x35/0x7a
[<c03948a4>] spawn_ksoftirqd+0x17/0x37
[<c03886ac>] kernel_init+0x39/0x22a
[<c0104007>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c012f58e>] __lock_acquire+0x3b0/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0112ae3>] __wake_up+0x15/0x42
[<c0122d39>] insert_work+0x64/0x6b
[<c0123119>] __queue_work+0x22/0x33
[<c0123152>] queue_work+0x28/0x33
[<c012316f>] schedule_work+0x12/0x14
[<c0229e72>] schedule_bh+0x15/0x17
[<c0229ff8>] floppy_interrupt+0x168/0x192
[<c022d014>] floppy_hardint+0x1c/0xbc
[<c0142d2e>] handle_IRQ_event+0x1a/0x48
[<c014403e>] handle_level_irq+0x7c/0xc6
[<c01057eb>] do_IRQ+0x59/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c010239b>] cpu_idle+0x44/0x5e
[<c0101110>] rest_init+0x21/0x25
[<c0388c22>] start_kernel+0x385/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
in-softirq-W at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0112a4f>] complete+0x15/0x4a
[<c0123b65>] wakeme_after_rcu+0xe/0x10
[<c0123d3b>] __rcu_process_callbacks
+0x103/0x16c
[<c0123db9>] rcu_process_callbacks+0x15/0x26
[<c011a682>] tasklet_action+0x40/0x6c
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c010239b>] cpu_idle+0x44/0x5e
[<c0101110>] rest_init+0x21/0x25
[<c0388c22>] start_kernel+0x385/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
}
... key at: [<c03e271c>] __key.14042+0x0/0x8
-> (&rq->rq_lock_key){++..} ops: 67981 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0393e8d>] init_idle+0x5c/0x86
[<c03940cb>] sched_init+0x214/0x21c
[<c038897a>] start_kernel+0xdd/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c012f58e>] __lock_acquire+0x3b0/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c0114195>] scheduler_tick+0x8e/0xbd
[<c011d1bf>] update_process_times
+0x4f/0x5a
[<c012bf0d>] tick_periodic+0x69/0x75
[<c012bf2b>] tick_handle_periodic
+0x12/0x63
[<c01066d9>] timer_interrupt+0x11/0x18
[<c0142d2e>] handle_IRQ_event+0x1a/0x48
[<c014403e>] handle_level_irq+0x7c/0xc6
[<c01057eb>] do_IRQ+0x59/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c038f206>] request_standard_resources
+0x75/0x2fc
[<c038872c>] kernel_init+0xb9/0x22a
[<c0104007>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
in-softirq-W at:
[<c012f5b5>] __lock_acquire+0x3d7/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c0113260>] task_rq_lock+0x1a/0x21
[<c0113944>] try_to_wake_up+0x18/0xa0
[<c01139da>] default_wake_function
+0xe/0x10
[<c01127f0>] __wake_up_common+0x32/0x55
[<c0112a73>] complete+0x39/0x4a
[<c0123b65>] wakeme_after_rcu+0xe/0x10
[<c0123d3b>] __rcu_process_callbacks
+0x103/0x16c
[<c0123db9>] rcu_process_callbacks
+0x15/0x26
[<c011a682>] tasklet_action+0x40/0x6c
[<c011a5a6>] __do_softirq+0x46/0x9c
[<c011a629>] do_softirq+0x2d/0x46
[<c011a9d5>] irq_exit+0x3b/0x6b
[<c01057f0>] do_IRQ+0x5e/0x76
[<c0103f16>] common_interrupt+0x2e/0x34
[<c010239b>] cpu_idle+0x44/0x5e
[<c0101110>] rest_init+0x21/0x25
[<c0388c22>] start_kernel+0x385/0x38d
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
}
... key at: [<c03bfd38>] per_cpu__runqueues+0x9f8/0xa00
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaeed>] _spin_lock+0x2b/0x38
[<c0113260>] task_rq_lock+0x1a/0x21
[<c0113944>] try_to_wake_up+0x18/0xa0
[<c01139da>] default_wake_function+0xe/0x10
[<c01127f0>] __wake_up_common+0x32/0x55
[<c0112a73>] complete+0x39/0x4a
[<c0125af2>] kthread+0x87/0xcd
[<c0104007>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0112ae3>] __wake_up+0x15/0x42
[<c0122d39>] insert_work+0x64/0x6b
[<c0123119>] __queue_work+0x22/0x33
[<c0123152>] queue_work+0x28/0x33
[<c012293e>] call_usermodehelper_keys+0xc5/0xea
[<c01bf6ca>] kobject_uevent_env+0x3d3/0x42b
[<c01bf72f>] kobject_uevent+0xd/0x12
[<c022184a>] device_add+0x32f/0x518
[<c0221a48>] device_register+0x15/0x19
[<c0221faa>] device_create+0x77/0x99
[<c039e0d0>] vtconsole_class_init+0x71/0xb5
[<c038872c>] kernel_init+0xb9/0x22a
[<c0104007>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0123109>] __queue_work+0x12/0x33
[<c0123152>] queue_work+0x28/0x33
[<c0123315>] queue_delayed_work+0xf/0x22
[<c012333c>] schedule_delayed_work+0x14/0x16
[<c025c1cb>] linkwatch_fire_event+0xa9/0xae
[<c02605e3>] netif_carrier_off+0x1a/0x1c
[<d886a650>] _sc92031_reset+0x1a5/0x1dd [sc92031]
[<d886b730>] sc92031_open+0xd3/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
-> (ratelimit_lock){....} ops: 1 {
initial-use at:
[<c012f664>] __lock_acquire+0x486/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0116ec8>] __printk_ratelimit+0x1d/0xa5
[<c0116f66>] printk_ratelimit+0x16/0x18
[<d886a489>] _sc92031_check_media+0x160/0x182
[sc92031]
[<d886a660>] _sc92031_reset+0x1b5/0x1dd
[sc92031]
[<d886b730>] sc92031_open+0xd3/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
}
... key at: [<c03620dc>] ratelimit_lock.21472+0x1c/0x28
... acquired at:
[<c012fbc6>] __lock_acquire+0x9e8/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02ab22b>] _spin_lock_irqsave+0x34/0x44
[<c0116ec8>] __printk_ratelimit+0x1d/0xa5
[<c0116f66>] printk_ratelimit+0x16/0x18
[<d886a489>] _sc92031_check_media+0x160/0x182 [sc92031]
[<d886a660>] _sc92031_reset+0x1b5/0x1dd [sc92031]
[<d886b730>] sc92031_open+0xd3/0x16f [sc92031]
[<c02549e7>] dev_open+0x33/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
stack backtrace:
[<c010433c>] show_trace_log_lvl+0x1a/0x30
[<c0104e92>] show_trace+0x12/0x14
[<c0104eeb>] dump_stack+0x16/0x18
[<c012f13b>] check_usage+0x25a/0x264
[<c012fb28>] __lock_acquire+0x94a/0xb93
[<c012fdd9>] lock_acquire+0x68/0x82
[<c02aaf2a>] _spin_lock_bh+0x30/0x3d
[<d886ad22>] sc92031_set_multicast_list+0x14/0x2d [sc92031]
[<c025677e>] __dev_mc_upload+0x26/0x28
[<c02568c4>] dev_mc_upload+0x25/0x3a
[<c0254a02>] dev_open+0x4e/0x6e
[<c025337f>] dev_change_flags+0x57/0x10b
[<c028b237>] devinet_ioctl+0x235/0x546
[<c028b837>] inet_ioctl+0x89/0xaa
[<c0249cd1>] sock_ioctl+0x1ac/0x1ca
[<c0170a70>] do_ioctl+0x1c/0x53
[<c0170c93>] vfs_ioctl+0x1ec/0x203
[<c0170cf3>] sys_ioctl+0x49/0x62
[<c0103ca8>] sysenter_past_esp+0x5d/0x99
=======================
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