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Date:	Tue, 18 Dec 2007 20:52:01 +0100 (CET)
From:	Krzysztof Oledzki <olel@....pl>
To:	Andy Gospodarek <andy@...yhouse.net>
cc:	Jay Vosburgh <fubar@...ibm.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	bugme-daemon@...zilla.kernel.org, shemminger@...ux-foundation.org,
	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [Bugme-new] [Bug 9543] New: RTNL: assertion failed at
 net/ipv6/addrconf.c (2164)/RTNL: assertion failed at net/ipv4/devinet.c
 (1055)



On Fri, 14 Dec 2007, Andy Gospodarek wrote:

> On Fri, Dec 14, 2007 at 07:57:42PM +0100, Krzysztof Oledzki wrote:
>>
>>
>> On Fri, 14 Dec 2007, Andy Gospodarek wrote:
>>
>>> On Fri, Dec 14, 2007 at 05:14:57PM +0100, Krzysztof Oledzki wrote:
>>>>
>>>>
>>>> On Wed, 12 Dec 2007, Jay Vosburgh wrote:
>>>>
>>>>> Herbert Xu <herbert@...dor.apana.org.au> wrote:
>>>>>
>>>>>>> diff -puN drivers/net/bonding/bond_sysfs.c~bonding-locking-fix
>>>>>>> drivers/net/bonding/bond_sysfs.c
>>>>>>> --- a/drivers/net/bonding/bond_sysfs.c~bonding-locking-fix
>>>>>>> +++ a/drivers/net/bonding/bond_sysfs.c
>>>>>>> @@ -1111,8 +1111,6 @@ static ssize_t bonding_store_primary(str
>>>>>>> out:
>>>>>>>      write_unlock_bh(&bond->lock);
>>>>>>>
>>>>>>> -       rtnl_unlock();
>>>>>>> -
>>>>>>
>>>>>> Looking at the changeset that added this perhaps the intention
>>>>>> is to hold the lock? If so we should add an rtnl_lock to the start
>>>>>> of the function.
>>>>>
>>>>> 	Yes, this function needs to hold locks, and more than just
>>>>> what's there now.  I believe the following should be correct; I haven't
>>>>> tested it, though (I'm supposedly on vacation right now).
>>>>>
>>>>> 	The following change should be correct for the
>>>>> bonding_store_primary case discussed in this thread, and also corrects
>>>>> the bonding_store_active case which performs similar functions.
>>>>>
>>>>> 	The bond_change_active_slave and bond_select_active_slave
>>>>> functions both require rtnl, bond->lock for read and curr_slave_lock for
>>>>> write_bh, and no other locks.  This is so that the lower level
>>>>> mode-specific functions can release locks down to just rtnl in order to
>>>>> call, e.g., dev_set_mac_address with the locks it expects (rtnl only).
>>>>>
>>>>> Signed-off-by: Jay Vosburgh <fubar@...ibm.com>
>>>>>
>>>>> diff --git a/drivers/net/bonding/bond_sysfs.c
>>>>> b/drivers/net/bonding/bond_sysfs.c
>>>>> index 11b76b3..28a2d80 100644
>>>>> --- a/drivers/net/bonding/bond_sysfs.c
>>>>> +++ b/drivers/net/bonding/bond_sysfs.c
>>>>> @@ -1075,7 +1075,10 @@ static ssize_t bonding_store_primary(struct device
>>>>> *d,
>>>>> 	struct slave *slave;
>>>>> 	struct bonding *bond = to_bond(d);
>>>>>
>>>>> -	write_lock_bh(&bond->lock);
>>>>> +	rtnl_lock();
>>>>> +	read_lock(&bond->lock);
>>>>> +	write_lock_bh(&bond->curr_slave_lock);
> F
>>>>> +
>>>>> 	if (!USES_PRIMARY(bond->params.mode)) {
>>>>> 		printk(KERN_INFO DRV_NAME
>>>>> 		       ": %s: Unable to set primary slave; %s is in mode
>>>>> 		       %d\n",
>>>>> @@ -1109,8 +1112,8 @@ static ssize_t bonding_store_primary(struct device
>>>>> *d,
>>>>> 		}
>>>>> 	}
>>>>> out:
>>>>> -	write_unlock_bh(&bond->lock);
>>>>> -
>>>>> +	write_unlock_bh(&bond->curr_slave_lock);
>>>>> +	read_unlock(&bond->lock);
>>>>> 	rtnl_unlock();
>>>>>
>>>>> 	return count;
>>>>> @@ -1190,7 +1193,8 @@ static ssize_t bonding_store_active_slave(struct
>>>>> device *d,
>>>>> 	struct bonding *bond = to_bond(d);
>>>>>
>>>>> 	rtnl_lock();
>>>>> -	write_lock_bh(&bond->lock);
>>>>> +	read_lock(&bond->lock);
>>>>> +	write_lock_bh(&bond->curr_slave_lock);
>>>>>
>>>>> 	if (!USES_PRIMARY(bond->params.mode)) {
>>>>> 		printk(KERN_INFO DRV_NAME
>>>>> @@ -1247,7 +1251,8 @@ static ssize_t bonding_store_active_slave(struct
>>>>> device *d,
>>>>> 		}
>>>>> 	}
>>>>> out:
>>>>> -	write_unlock_bh(&bond->lock);
>>>>> +	write_unlock_bh(&bond->curr_slave_lock);
>>>>> +	read_unlock(&bond->lock);
>>>>> 	rtnl_unlock();
>>>>>
>>>>> 	return count;
>>>>
>>>> Vanilla 2.6.24-rc5 plus this patch:
>>>>
>>>> =========================================================
>>>> [ INFO: possible irq lock inversion dependency detected ]
>>>> 2.6.24-rc5 #1
>>>> ---------------------------------------------------------
>>>> events/0/9 just changed the state of lock:
>>>> (&mc->mca_lock){-+..}, at: [<c0411c7a>] mld_ifc_timer_expire+0x130/0x1fb
>>>> but this lock took another, soft-read-irq-unsafe lock in the past:
>>>> (&bond->lock){-.--}
>>>>
>>>> and interrupts could create inverse lock ordering between them.
>>>>
>>>>
>>>
>>> Grrr, I should have seen that -- sorry.  Try your luck with this instead:
>> <CUT>
>>
>> No luck.
>>
>> bonding: bond0: setting mode to active-backup (1).
>> bonding: bond0: Setting MII monitoring interval to 100.
>> ADDRCONF(NETDEV_UP): bond0: link is not ready
>> bonding: bond0: Adding slave eth0.
>> e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow
>> Control: RX/TX
>> bonding: bond0: making interface eth0 the new active one.
>> bonding: bond0: first active interface up!
>> bonding: bond0: enslaving eth0 as an active interface with an up link.
>> bonding: bond0: Adding slave eth1.
>> ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
>
> <SNIP>
>
>> bonding: bond0: enslaving eth1 as a backup interface with a down link.
>> bonding: bond0: Setting eth0 as primary slave.
>> bond0: no IPv6 routers present
>>
>
> Based on the console log, I'm guessing your initialization scripts use
> sysfs to set eth0 as the primary interface for bond0?  Can you confirm?
>
> If you did somehow use sysfs to set the primary device as eth0, I'm
> guessing you never see this issue without that line or without this
> patch.  Please confirm this as well.

Unpatched 2.6.24-rc5 with "echo -n eth0 > /sys/class/net/${IFACE}/bonding/primary"
removed, still has this issue. I also removed:
#               echo -n 1 > /sys/class/net/${IFACE}/bonding/mode
#               echo -n 100 > /sys/class/net/${IFACE}/bonding/miimon
but this did not help:

bonding: bond0: setting mode to active-backup (1).
bonding: bond0: Setting MII monitoring interval to 100.
ADDRCONF(NETDEV_UP): bond0: link is not ready
bonding: bond0: Adding slave eth0.
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
bonding: bond0: making interface eth0 the new active one.
bonding: bond0: first active interface up!
bonding: bond0: enslaving eth0 as an active interface with an up link.
bonding: bond0: Adding slave eth1.
ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready

=========================================================
[ INFO: possible irq lock inversion dependency detected ]
2.6.24-rc5 #1
---------------------------------------------------------
events/0/9 just changed the state of lock:
  (&mc->mca_lock){-+..}, at: [<c0411c52>] mld_ifc_timer_expire+0x130/0x1fb
but this lock took another, soft-read-irq-unsafe lock in the past:
  (&bond->lock){-.--}

and interrupts could create inverse lock ordering between them.


other info that might help us debug this:
4 locks held by events/0/9:
  #0:  (events){--..}, at: [<c0133c57>] run_workqueue+0x87/0x1b6
  #1:  ((linkwatch_work).work){--..}, at: [<c0133c57>] run_workqueue+0x87/0x1b6
  #2:  (rtnl_mutex){--..}, at: [<c03abd28>] linkwatch_event+0x5/0x22
  #3:  (&ndev->lock){-.-+}, at: [<c0411b39>] mld_ifc_timer_expire+0x17/0x1fb

the first lock's dependencies:
-> (&mc->mca_lock){-+..} ops: 10 {
    initial-use  at:
                         [<c0104ee2>] dump_trace+0x83/0x8d
                         [<c014289c>] __lock_acquire+0x4ba/0xc07
                         [<c0109ef2>] save_stack_trace+0x20/0x3a
                         [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                         [<c041242a>] ipv6_dev_mc_inc+0x24d/0x31c
                         [<c0143062>] lock_acquire+0x79/0x93
                         [<c04120ae>] igmp6_group_added+0x18/0x11d
                         [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                         [<c04120ae>] igmp6_group_added+0x18/0x11d
                         [<c04120ae>] igmp6_group_added+0x18/0x11d
                         [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                         [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                         [<c041242a>] ipv6_dev_mc_inc+0x24d/0x31c
                         [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                         [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                         [<c040180c>] ipv6_add_dev+0x21c/0x24b
                         [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                         [<c05c5b40>] addrconf_init+0x13/0x193
                         [<c0199f63>] proc_net_fops_create+0x10/0x21
                         [<c0419b10>] ip6_flowlabel_init+0x1e/0x20
                         [<c05c5a20>] inet6_init+0x1f0/0x2ad
                         [<c05a9499>] kernel_init+0x150/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c0104baf>] kernel_thread_helper+0x7/0x10
                         [<ffffffff>] 0xffffffff
    in-softirq-W at:
                         [<c0142822>] __lock_acquire+0x440/0xc07
                         [<c011d686>] update_curr+0x52/0xc4
                         [<c013f175>] tick_sched_timer+0x129/0x165
                         [<c0143062>] lock_acquire+0x79/0x93
                         [<c0411c52>] mld_ifc_timer_expire+0x130/0x1fb
                         [<c0411b22>] mld_ifc_timer_expire+0x0/0x1fb
                         [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                         [<c0411c52>] mld_ifc_timer_expire+0x130/0x1fb
                         [<c0411c52>] mld_ifc_timer_expire+0x130/0x1fb
                         [<c0411b22>] mld_ifc_timer_expire+0x0/0x1fb
                         [<c0141f89>] trace_hardirqs_on+0x10c/0x14c
                         [<c0411b22>] mld_ifc_timer_expire+0x0/0x1fb
                         [<c012df52>] run_timer_softirq+0xfa/0x15d
                         [<c012a8a6>] __do_softirq+0x56/0xdb
                         [<c0141f89>] trace_hardirqs_on+0x10c/0x14c
                         [<c012a8b8>] __do_softirq+0x68/0xdb
                         [<c012a961>] do_softirq+0x36/0x51
                         [<c012ae4a>] local_bh_enable_ip+0xad/0xed
                         [<c03bf0df>] rt_run_flush+0x64/0x8b
                         [<c03e926e>] fib_netdev_event+0x61/0x65
                         [<c013ac20>] notifier_call_chain+0x2a/0x52
                         [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
                         [<c03a2abd>] netdev_state_change+0x18/0x29
                         [<c03abcf5>] __linkwatch_run_queue+0x150/0x17e
                         [<c03abd40>] linkwatch_event+0x1d/0x22
                         [<c0133cab>] run_workqueue+0xdb/0x1b6
                         [<c0133c57>] run_workqueue+0x87/0x1b6
                         [<c03abd23>] linkwatch_event+0x0/0x22
                         [<c01346cb>] worker_thread+0x0/0x85
                         [<c0134744>] worker_thread+0x79/0x85
                         [<c0137179>] autoremove_wake_function+0x0/0x35
                         [<c01370c2>] kthread+0x38/0x5e
                         [<c013708a>] kthread+0x0/0x5e
                         [<c0104baf>] kernel_thread_helper+0x7/0x10
                         [<ffffffff>] 0xffffffff
    hardirq-on-W at:
                         [<c01417ee>] find_usage_backwards+0xbb/0xe2
                         [<c0104ee2>] dump_trace+0x83/0x8d
                         [<c014286a>] __lock_acquire+0x488/0xc07
                         [<c0109ef2>] save_stack_trace+0x20/0x3a
                         [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                         [<c041242a>] ipv6_dev_mc_inc+0x24d/0x31c
                         [<c0143062>] lock_acquire+0x79/0x93
                         [<c04120ae>] igmp6_group_added+0x18/0x11d
                         [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                         [<c04120ae>] igmp6_group_added+0x18/0x11d
                         [<c04120ae>] igmp6_group_added+0x18/0x11d
                         [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                         [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                         [<c041242a>] ipv6_dev_mc_inc+0x24d/0x31c
                         [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                         [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                         [<c040180c>] ipv6_add_dev+0x21c/0x24b
                         [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                         [<c05c5b40>] addrconf_init+0x13/0x193
                         [<c0199f63>] proc_net_fops_create+0x10/0x21
                         [<c0419b10>] ip6_flowlabel_init+0x1e/0x20
                         [<c05c5a20>] inet6_init+0x1f0/0x2ad
                         [<c05a9499>] kernel_init+0x150/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c0104baf>] kernel_thread_helper+0x7/0x10
                         [<ffffffff>] 0xffffffff
  }
  ... key      at: [<c087e2d8>] __key.30798+0x0/0x8
  -> (_xmit_ETHER){-...} ops: 8 {
     initial-use  at:
                           [<c014289c>] __lock_acquire+0x4ba/0xc07
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c04120ec>] igmp6_group_added+0x56/0x11d
                           [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                           [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                           [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                           [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                           [<c040180c>] ipv6_add_dev+0x21c/0x24b
                           [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                           [<c0401def>] addrconf_notify+0x60/0x7b7
                           [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                           [<c0141dac>] mark_held_locks+0x39/0x53
                           [<c043903e>] mutex_lock_nested+0x286/0x2ac
                           [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                           [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                           [<c05c5bda>] addrconf_init+0xad/0x193
                           [<c05c5b48>] addrconf_init+0x1b/0x193
                           [<c05c5a20>] inet6_init+0x1f0/0x2ad
                           [<c05a9499>] kernel_init+0x150/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c0104baf>] kernel_thread_helper+0x7/0x10
                           [<ffffffff>] 0xffffffff
     hardirq-on-W at:
                           [<c0141986>] mark_lock+0x64/0x451
                           [<c014286a>] __lock_acquire+0x488/0xc07
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c04120ec>] igmp6_group_added+0x56/0x11d
                           [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                           [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                           [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                           [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                           [<c040180c>] ipv6_add_dev+0x21c/0x24b
                           [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                           [<c0401def>] addrconf_notify+0x60/0x7b7
                           [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                           [<c0141dac>] mark_held_locks+0x39/0x53
                           [<c043903e>] mutex_lock_nested+0x286/0x2ac
                           [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                           [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                           [<c05c5bda>] addrconf_init+0xad/0x193
                           [<c05c5b48>] addrconf_init+0x1b/0x193
                           [<c05c5a20>] inet6_init+0x1f0/0x2ad
                           [<c05a9499>] kernel_init+0x150/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c0104baf>] kernel_thread_helper+0x7/0x10
                           [<ffffffff>] 0xffffffff
   }
   ... key      at: [<c087adc8>] netdev_xmit_lock_key+0x8/0x1c0
  ... acquired at:
    [<c0142dff>] __lock_acquire+0xa1d/0xc07
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c0143062>] lock_acquire+0x79/0x93
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c0439d3a>] _spin_lock_bh+0x3b/0x64
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c04120ec>] igmp6_group_added+0x56/0x11d
    [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
    [<c0410100>] igmp6_mc_seq_start+0x106/0x138
    [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
    [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
    [<c040180c>] ipv6_add_dev+0x21c/0x24b
    [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
    [<c0401def>] addrconf_notify+0x60/0x7b7
    [<c0142fa1>] __lock_acquire+0xbbf/0xc07
    [<c0141dac>] mark_held_locks+0x39/0x53
    [<c043903e>] mutex_lock_nested+0x286/0x2ac
    [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
    [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
    [<c03a3f25>] register_netdevice_notifier+0xe/0x126
    [<c03a3f25>] register_netdevice_notifier+0xe/0x126
    [<c03a3f60>] register_netdevice_notifier+0x49/0x126
    [<c05c5bda>] addrconf_init+0xad/0x193
    [<c05c5b48>] addrconf_init+0x1b/0x193
    [<c05c5a20>] inet6_init+0x1f0/0x2ad
    [<c05a9499>] kernel_init+0x150/0x2b7
    [<c05a9349>] kernel_init+0x0/0x2b7
    [<c05a9349>] kernel_init+0x0/0x2b7
    [<c0104baf>] kernel_thread_helper+0x7/0x10
    [<ffffffff>] 0xffffffff

  -> (&bonding_netdev_xmit_lock_key){-...} ops: 6 {
     initial-use  at:
                           [<c014289c>] __lock_acquire+0x4ba/0xc07
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c04120ec>] igmp6_group_added+0x56/0x11d
                           [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                           [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                           [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                           [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                           [<c040180c>] ipv6_add_dev+0x21c/0x24b
                           [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                           [<c0401def>] addrconf_notify+0x60/0x7b7
                           [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                           [<c0141dac>] mark_held_locks+0x39/0x53
                           [<c043903e>] mutex_lock_nested+0x286/0x2ac
                           [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                           [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                           [<c05c5bda>] addrconf_init+0xad/0x193
                           [<c05c5b48>] addrconf_init+0x1b/0x193
                           [<c05c5a20>] inet6_init+0x1f0/0x2ad
                           [<c05a9499>] kernel_init+0x150/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c0104baf>] kernel_thread_helper+0x7/0x10
                           [<ffffffff>] 0xffffffff
     hardirq-on-W at:
                           [<c0141986>] mark_lock+0x64/0x451
                           [<c014286a>] __lock_acquire+0x488/0xc07
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c04120ec>] igmp6_group_added+0x56/0x11d
                           [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                           [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                           [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                           [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                           [<c040180c>] ipv6_add_dev+0x21c/0x24b
                           [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                           [<c0401def>] addrconf_notify+0x60/0x7b7
                           [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                           [<c0141dac>] mark_held_locks+0x39/0x53
                           [<c043903e>] mutex_lock_nested+0x286/0x2ac
                           [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                           [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                           [<c05c5bda>] addrconf_init+0xad/0x193
                           [<c05c5b48>] addrconf_init+0x1b/0x193
                           [<c05c5a20>] inet6_init+0x1f0/0x2ad
                           [<c05a9499>] kernel_init+0x150/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c0104baf>] kernel_thread_helper+0x7/0x10
                           [<ffffffff>] 0xffffffff
   }
   ... key      at: [<c0877804>] bonding_netdev_xmit_lock_key+0x0/0x8
   -> (&bond->lock){-.--} ops: 99 {
      initial-use  at:
                             [<c013fe35>] put_lock_stats+0xa/0x1e
                             [<c014289c>] __lock_acquire+0x4ba/0xc07
                             [<c0141dac>] mark_held_locks+0x39/0x53
                             [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
                             [<c0143062>] lock_acquire+0x79/0x93
                             [<c02edcc1>] bond_get_stats+0x28/0xd0
                             [<c0439ec6>] _read_lock_bh+0x3b/0x64
                             [<c02edcc1>] bond_get_stats+0x28/0xd0
                             [<c02edcc1>] bond_get_stats+0x28/0xd0
                             [<c03aa3bf>] rtnl_fill_ifinfo+0x2bf/0x563
                             [<c03aa93d>] rtmsg_ifinfo+0x5d/0xdf
                             [<c03aa9fe>] rtnetlink_event+0x3f/0x42
                             [<c013ac20>] notifier_call_chain+0x2a/0x52
                             [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
                             [<c03a31b6>] register_netdevice+0x2a7/0x2e7
                             [<c02ed862>] bond_create+0x1f2/0x26a
                             [<c05bedcd>] bonding_init+0x761/0x7ea
                             [<c05be635>] e1000_init_module+0x45/0x7c
                             [<c05a9499>] kernel_init+0x150/0x2b7
                             [<c05a9349>] kernel_init+0x0/0x2b7
                             [<c05a9349>] kernel_init+0x0/0x2b7
                             [<c0104baf>] kernel_thread_helper+0x7/0x10
                             [<ffffffff>] 0xffffffff
      hardirq-on-W at:
                             [<c014286a>] __lock_acquire+0x488/0xc07
                             [<c0141dac>] mark_held_locks+0x39/0x53
                             [<c043a3d5>] _spin_unlock_irq+0x20/0x41
                             [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                             [<c043a3e0>] _spin_unlock_irq+0x2b/0x41
                             [<c012208a>] finish_task_switch+0x50/0x8c
                             [<c0143062>] lock_acquire+0x79/0x93
                             [<c02eda75>] bond_set_multicast_list+0x1d/0x241
                             [<c0439dfd>] _write_lock_bh+0x3b/0x64
                             [<c02eda75>] bond_set_multicast_list+0x1d/0x241
                             [<c02eda75>] bond_set_multicast_list+0x1d/0x241
                             [<c013fe35>] put_lock_stats+0xa/0x1e
                             [<c03a14b3>] __dev_set_rx_mode+0x7b/0x7d
                             [<c03a164d>] dev_set_rx_mode+0x23/0x36
                             [<c03a3d28>] dev_open+0x5e/0x77
                             [<c03a29f7>] dev_change_flags+0x9d/0x14b
                             [<c03a17fb>] __dev_get_by_name+0x68/0x73
                             [<c03e3828>] devinet_ioctl+0x22b/0x536
                             [<c03a3b1d>] dev_ioctl+0x46f/0x5b7
                             [<c0399c50>] sock_ioctl+0x167/0x18b
                             [<c0399ae9>] sock_ioctl+0x0/0x18b
                             [<c01725f7>] do_ioctl+0x1f/0x62
                             [<c0172867>] vfs_ioctl+0x22d/0x23f
                             [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                             [<c01728ac>] sys_ioctl+0x33/0x4b
                             [<c0103e92>] sysenter_past_esp+0x5f/0xa5
                             [<ffffffff>] 0xffffffff
      softirq-on-R at:
                             [<c0141986>] mark_lock+0x64/0x451
                             [<c013575e>] __kernel_text_address+0x5/0xe
                             [<c0104ee2>] dump_trace+0x83/0x8d
                             [<c0142889>] __lock_acquire+0x4a7/0xc07
                             [<c013fc76>] save_trace+0x37/0x89
                             [<c0133c57>] run_workqueue+0x87/0x1b6
                             [<c0143062>] lock_acquire+0x79/0x93
                             [<c02eee5d>] bond_mii_monitor+0x19/0x85
                             [<c0439f25>] _read_lock+0x36/0x5f
                             [<c02eee5d>] bond_mii_monitor+0x19/0x85
                             [<c02eee5d>] bond_mii_monitor+0x19/0x85
                             [<c0133cab>] run_workqueue+0xdb/0x1b6
                             [<c0133c57>] run_workqueue+0x87/0x1b6
                             [<c02eee44>] bond_mii_monitor+0x0/0x85
                             [<c01346cb>] worker_thread+0x0/0x85
                             [<c0134744>] worker_thread+0x79/0x85
                             [<c0137179>] autoremove_wake_function+0x0/0x35
                             [<c01370c2>] kthread+0x38/0x5e
                             [<c013708a>] kthread+0x0/0x5e
                             [<c0104baf>] kernel_thread_helper+0x7/0x10
                             [<ffffffff>] 0xffffffff
      hardirq-on-R at:
                             [<c013fe0a>] get_lock_stats+0xd/0x2e
                             [<c013fe35>] put_lock_stats+0xa/0x1e
                             [<c0142844>] __lock_acquire+0x462/0xc07
                             [<c0141dac>] mark_held_locks+0x39/0x53
                             [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
                             [<c0143062>] lock_acquire+0x79/0x93
                             [<c02edcc1>] bond_get_stats+0x28/0xd0
                             [<c0439ec6>] _read_lock_bh+0x3b/0x64
                             [<c02edcc1>] bond_get_stats+0x28/0xd0
                             [<c02edcc1>] bond_get_stats+0x28/0xd0
                             [<c03aa3bf>] rtnl_fill_ifinfo+0x2bf/0x563
                             [<c03aa93d>] rtmsg_ifinfo+0x5d/0xdf
                             [<c03aa9fe>] rtnetlink_event+0x3f/0x42
                             [<c013ac20>] notifier_call_chain+0x2a/0x52
                             [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
                             [<c03a31b6>] register_netdevice+0x2a7/0x2e7
                             [<c02ed862>] bond_create+0x1f2/0x26a
                             [<c05bedcd>] bonding_init+0x761/0x7ea
                             [<c05be635>] e1000_init_module+0x45/0x7c
                             [<c05a9499>] kernel_init+0x150/0x2b7
                             [<c05a9349>] kernel_init+0x0/0x2b7
                             [<c05a9349>] kernel_init+0x0/0x2b7
                             [<c0104baf>] kernel_thread_helper+0x7/0x10
                             [<ffffffff>] 0xffffffff
    }
    ... key      at: [<c08777d0>] __key.32969+0x0/0x8
    -> (_xmit_ETHER){-...} ops: 8 {
       initial-use  at:
                               [<c014289c>] __lock_acquire+0x4ba/0xc07
                               [<c0143062>] lock_acquire+0x79/0x93
                               [<c03a5a79>] dev_mc_add+0x1a/0x6a
                               [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                               [<c03a5a79>] dev_mc_add+0x1a/0x6a
                               [<c03a5a79>] dev_mc_add+0x1a/0x6a
                               [<c04120ec>] igmp6_group_added+0x56/0x11d
                               [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                               [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                               [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                               [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                               [<c040180c>] ipv6_add_dev+0x21c/0x24b
                               [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                               [<c0401def>] addrconf_notify+0x60/0x7b7
                               [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                               [<c0141dac>] mark_held_locks+0x39/0x53
                               [<c043903e>] mutex_lock_nested+0x286/0x2ac
                               [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                               [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                               [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                               [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                               [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                               [<c05c5bda>] addrconf_init+0xad/0x193
                               [<c05c5b48>] addrconf_init+0x1b/0x193
                               [<c05c5a20>] inet6_init+0x1f0/0x2ad
                               [<c05a9499>] kernel_init+0x150/0x2b7
                               [<c05a9349>] kernel_init+0x0/0x2b7
                               [<c05a9349>] kernel_init+0x0/0x2b7
                               [<c0104baf>] kernel_thread_helper+0x7/0x10
                               [<ffffffff>] 0xffffffff
       hardirq-on-W at:
                               [<c0141986>] mark_lock+0x64/0x451
                               [<c014286a>] __lock_acquire+0x488/0xc07
                               [<c0143062>] lock_acquire+0x79/0x93
                               [<c03a5a79>] dev_mc_add+0x1a/0x6a
                               [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                               [<c03a5a79>] dev_mc_add+0x1a/0x6a
                               [<c03a5a79>] dev_mc_add+0x1a/0x6a
                               [<c04120ec>] igmp6_group_added+0x56/0x11d
                               [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                               [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                               [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                               [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                               [<c040180c>] ipv6_add_dev+0x21c/0x24b
                               [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                               [<c0401def>] addrconf_notify+0x60/0x7b7
                               [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                               [<c0141dac>] mark_held_locks+0x39/0x53
                               [<c043903e>] mutex_lock_nested+0x286/0x2ac
                               [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                               [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                               [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                               [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                               [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                               [<c05c5bda>] addrconf_init+0xad/0x193
                               [<c05c5b48>] addrconf_init+0x1b/0x193
                               [<c05c5a20>] inet6_init+0x1f0/0x2ad
                               [<c05a9499>] kernel_init+0x150/0x2b7
                               [<c05a9349>] kernel_init+0x0/0x2b7
                               [<c05a9349>] kernel_init+0x0/0x2b7
                               [<c0104baf>] kernel_thread_helper+0x7/0x10
                               [<ffffffff>] 0xffffffff
     }
     ... key      at: [<c087adc8>] netdev_xmit_lock_key+0x8/0x1c0
    ... acquired at:
    [<c0142dff>] __lock_acquire+0xa1d/0xc07
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
    [<c0109ef2>] save_stack_trace+0x20/0x3a
    [<c0143062>] lock_acquire+0x79/0x93
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c0439d3a>] _spin_lock_bh+0x3b/0x64
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c02ee492>] bond_change_active_slave+0x1a9/0x3bf
    [<c02ec7c3>] bond_update_speed_duplex+0x26/0x65
    [<c02ee9af>] bond_select_active_slave+0x95/0xcd
    [<c02ed22b>] bond_compute_features+0x45/0x84
    [<c02ef9be>] bond_enslave+0x6a7/0x884
    [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
    [<c02f616d>] bonding_store_slaves+0x1ae/0x2fb
    [<c02f5fbf>] bonding_store_slaves+0x0/0x2fb
    [<c02ce8d7>] dev_attr_store+0x27/0x2c
    [<c019bcb9>] sysfs_write_file+0xad/0xe0
    [<c019bc0c>] sysfs_write_file+0x0/0xe0
    [<c0168ddc>] vfs_write+0x8a/0x10c
    [<c0118566>] do_page_fault+0x0/0x54a
    [<c0169361>] sys_write+0x41/0x67
    [<c0103e92>] sysenter_past_esp+0x5f/0xa5
    [<ffffffff>] 0xffffffff

    -> (lweventlist_lock){.+..} ops: 10 {
       initial-use  at:
                               [<c0141986>] mark_lock+0x64/0x451
                               [<c014289c>] __lock_acquire+0x4ba/0xc07
                               [<c02e365c>] e1000_read_phy_reg+0x1c7/0x1d3
                               [<c02e348b>] e1000_write_phy_reg+0xb9/0xc3
                               [<c024a7de>] delay_tsc+0x25/0x3b
                               [<c0143062>] lock_acquire+0x79/0x93
                               [<c03abacf>] linkwatch_add_event+0xd/0x2c
                               [<c043a057>] _spin_lock_irqsave+0x3f/0x6c
                               [<c03abacf>] linkwatch_add_event+0xd/0x2c
                               [<c03abacf>] linkwatch_add_event+0xd/0x2c
                               [<c03abb93>] linkwatch_fire_event+0x25/0x37
                               [<c02e1c43>] e1000_probe+0xad1/0xbe8
                               [<c0257f3f>] pci_device_probe+0x36/0x57
                               [<c02d0e5f>] driver_probe_device+0xe1/0x15f
                               [<c043a2d1>] _spin_unlock+0x25/0x3b
                               [<c043758a>] klist_next+0x58/0x6d
                               [<c02d0f6f>] __driver_attach+0x0/0x7f
                               [<c02d0fb8>] __driver_attach+0x49/0x7f
                               [<c02d0403>] bus_for_each_dev+0x36/0x58
                               [<c02d0cb7>] driver_attach+0x16/0x18
                               [<c02d0f6f>] __driver_attach+0x0/0x7f
                               [<c02d06fa>] bus_add_driver+0x6d/0x18d
                               [<c0258089>] __pci_register_driver+0x53/0x7f
                               [<c05be635>] e1000_init_module+0x45/0x7c
                               [<c05a9499>] kernel_init+0x150/0x2b7
                               [<c05a9349>] kernel_init+0x0/0x2b7
                               [<c05a9349>] kernel_init+0x0/0x2b7
                               [<c0104baf>] kernel_thread_helper+0x7/0x10
                               [<ffffffff>] 0xffffffff
       in-softirq-W at:
                               [<c011d20a>] __wake_up_common+0x32/0x5c
                               [<c0142822>] __lock_acquire+0x440/0xc07
                               [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
                               [<c0143062>] lock_acquire+0x79/0x93
                               [<c03abacf>] linkwatch_add_event+0xd/0x2c
                               [<c02dff01>] e1000_watchdog+0x0/0x5c9
                               [<c043a057>] _spin_lock_irqsave+0x3f/0x6c
                               [<c03abacf>] linkwatch_add_event+0xd/0x2c
                               [<c03abacf>] linkwatch_add_event+0xd/0x2c
                               [<c03abb93>] linkwatch_fire_event+0x25/0x37
                               [<c03aeb1a>] netif_carrier_on+0x16/0x27
                               [<c02e0156>] e1000_watchdog+0x255/0x5c9
                               [<c02dff01>] e1000_watchdog+0x0/0x5c9
                               [<c012df52>] run_timer_softirq+0xfa/0x15d
                               [<c012a8a6>] __do_softirq+0x56/0xdb
                               [<c0141f89>] trace_hardirqs_on+0x10c/0x14c
                               [<c012a8b8>] __do_softirq+0x68/0xdb
                               [<c012a961>] do_softirq+0x36/0x51
                               [<c012ae4a>] local_bh_enable_ip+0xad/0xed
                               [<c03bf0df>] rt_run_flush+0x64/0x8b
                               [<c03e7924>] ip_mc_inc_group+0x184/0x1c1
                               [<c03e79a2>] ip_mc_up+0x41/0x59
                               [<c03e32dc>] inetdev_event+0x257/0x465
                               [<c03aa8da>] rtnl_notify+0x3a/0x40
                               [<c03aa997>] rtmsg_ifinfo+0xb7/0xdf
                               [<c013ac20>] notifier_call_chain+0x2a/0x52
                               [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
                               [<c03a3d3b>] dev_open+0x71/0x77
                               [<c02ef626>] bond_enslave+0x30f/0x884
                               [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                               [<c02f6161>] bonding_store_slaves+0x1a2/0x2fb
                               [<c02f616d>] bonding_store_slaves+0x1ae/0x2fb
                               [<c02f5fbf>] bonding_store_slaves+0x0/0x2fb
                               [<c02ce8d7>] dev_attr_store+0x27/0x2c
                               [<c019bcb9>] sysfs_write_file+0xad/0xe0
                               [<c019bc0c>] sysfs_write_file+0x0/0xe0
                               [<c0168ddc>] vfs_write+0x8a/0x10c
                               [<c0118566>] do_page_fault+0x0/0x54a
                               [<c0169361>] sys_write+0x41/0x67
                               [<c0103e92>] sysenter_past_esp+0x5f/0xa5
                               [<ffffffff>] 0xffffffff
     }
     ... key      at: [<c058a194>] lweventlist_lock+0x14/0x40
    ... acquired at:
    [<c0142dff>] __lock_acquire+0xa1d/0xc07
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c0142fa1>] __lock_acquire+0xbbf/0xc07
    [<c0143062>] lock_acquire+0x79/0x93
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c043a057>] _spin_lock_irqsave+0x3f/0x6c
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c03abb93>] linkwatch_fire_event+0x25/0x37
    [<c03aeb1a>] netif_carrier_on+0x16/0x27
    [<c02ede2c>] bond_set_carrier+0x31/0x55
    [<c02ee9b6>] bond_select_active_slave+0x9c/0xcd
    [<c02ed22b>] bond_compute_features+0x45/0x84
    [<c02ef9be>] bond_enslave+0x6a7/0x884
    [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
    [<c02f616d>] bonding_store_slaves+0x1ae/0x2fb
    [<c02f5fbf>] bonding_store_slaves+0x0/0x2fb
    [<c02ce8d7>] dev_attr_store+0x27/0x2c
    [<c019bcb9>] sysfs_write_file+0xad/0xe0
    [<c019bc0c>] sysfs_write_file+0x0/0xe0
    [<c0168ddc>] vfs_write+0x8a/0x10c
    [<c0118566>] do_page_fault+0x0/0x54a
    [<c0169361>] sys_write+0x41/0x67
    [<c0103e92>] sysenter_past_esp+0x5f/0xa5
    [<ffffffff>] 0xffffffff

   ... acquired at:
    [<c0142dff>] __lock_acquire+0xa1d/0xc07
    [<c02eda75>] bond_set_multicast_list+0x1d/0x241
    [<c0141dac>] mark_held_locks+0x39/0x53
    [<c0143062>] lock_acquire+0x79/0x93
    [<c02eda75>] bond_set_multicast_list+0x1d/0x241
    [<c0439dfd>] _write_lock_bh+0x3b/0x64
    [<c02eda75>] bond_set_multicast_list+0x1d/0x241
    [<c02eda75>] bond_set_multicast_list+0x1d/0x241
    [<c013fe35>] put_lock_stats+0xa/0x1e
    [<c03a14b3>] __dev_set_rx_mode+0x7b/0x7d
    [<c03a164d>] dev_set_rx_mode+0x23/0x36
    [<c03a3d28>] dev_open+0x5e/0x77
    [<c03a29f7>] dev_change_flags+0x9d/0x14b
    [<c03a17fb>] __dev_get_by_name+0x68/0x73
    [<c03e3828>] devinet_ioctl+0x22b/0x536
    [<c03a3b1d>] dev_ioctl+0x46f/0x5b7
    [<c0399c50>] sock_ioctl+0x167/0x18b
    [<c0399ae9>] sock_ioctl+0x0/0x18b
    [<c01725f7>] do_ioctl+0x1f/0x62
    [<c0172867>] vfs_ioctl+0x22d/0x23f
    [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
    [<c01728ac>] sys_ioctl+0x33/0x4b
    [<c0103e92>] sysenter_past_esp+0x5f/0xa5
    [<ffffffff>] 0xffffffff

  ... acquired at:
    [<c0142dff>] __lock_acquire+0xa1d/0xc07
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c0143062>] lock_acquire+0x79/0x93
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c0439d3a>] _spin_lock_bh+0x3b/0x64
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c04120ec>] igmp6_group_added+0x56/0x11d
    [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
    [<c0410100>] igmp6_mc_seq_start+0x106/0x138
    [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
    [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
    [<c040180c>] ipv6_add_dev+0x21c/0x24b
    [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
    [<c0401def>] addrconf_notify+0x60/0x7b7
    [<c0142fa1>] __lock_acquire+0xbbf/0xc07
    [<c0141dac>] mark_held_locks+0x39/0x53
    [<c043903e>] mutex_lock_nested+0x286/0x2ac
    [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
    [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
    [<c03a3f25>] register_netdevice_notifier+0xe/0x126
    [<c03a3f25>] register_netdevice_notifier+0xe/0x126
    [<c03a3f60>] register_netdevice_notifier+0x49/0x126
    [<c05c5bda>] addrconf_init+0xad/0x193
    [<c05c5b48>] addrconf_init+0x1b/0x193
    [<c05c5a20>] inet6_init+0x1f0/0x2ad
    [<c05a9499>] kernel_init+0x150/0x2b7
    [<c05a9349>] kernel_init+0x0/0x2b7
    [<c05a9349>] kernel_init+0x0/0x2b7
    [<c0104baf>] kernel_thread_helper+0x7/0x10
    [<ffffffff>] 0xffffffff


the second lock's dependencies:
-> (&bond->lock){-.--} ops: 99 {
    initial-use  at:
                         [<c013fe35>] put_lock_stats+0xa/0x1e
                         [<c014289c>] __lock_acquire+0x4ba/0xc07
                         [<c0141dac>] mark_held_locks+0x39/0x53
                         [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
                         [<c0143062>] lock_acquire+0x79/0x93
                         [<c02edcc1>] bond_get_stats+0x28/0xd0
                         [<c0439ec6>] _read_lock_bh+0x3b/0x64
                         [<c02edcc1>] bond_get_stats+0x28/0xd0
                         [<c02edcc1>] bond_get_stats+0x28/0xd0
                         [<c03aa3bf>] rtnl_fill_ifinfo+0x2bf/0x563
                         [<c03aa93d>] rtmsg_ifinfo+0x5d/0xdf
                         [<c03aa9fe>] rtnetlink_event+0x3f/0x42
                         [<c013ac20>] notifier_call_chain+0x2a/0x52
                         [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
                         [<c03a31b6>] register_netdevice+0x2a7/0x2e7
                         [<c02ed862>] bond_create+0x1f2/0x26a
                         [<c05bedcd>] bonding_init+0x761/0x7ea
                         [<c05be635>] e1000_init_module+0x45/0x7c
                         [<c05a9499>] kernel_init+0x150/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c0104baf>] kernel_thread_helper+0x7/0x10
                         [<ffffffff>] 0xffffffff
    hardirq-on-W at:
                         [<c014286a>] __lock_acquire+0x488/0xc07
                         [<c0141dac>] mark_held_locks+0x39/0x53
                         [<c043a3d5>] _spin_unlock_irq+0x20/0x41
                         [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                         [<c043a3e0>] _spin_unlock_irq+0x2b/0x41
                         [<c012208a>] finish_task_switch+0x50/0x8c
                         [<c0143062>] lock_acquire+0x79/0x93
                         [<c02eda75>] bond_set_multicast_list+0x1d/0x241
                         [<c0439dfd>] _write_lock_bh+0x3b/0x64
                         [<c02eda75>] bond_set_multicast_list+0x1d/0x241
                         [<c02eda75>] bond_set_multicast_list+0x1d/0x241
                         [<c013fe35>] put_lock_stats+0xa/0x1e
                         [<c03a14b3>] __dev_set_rx_mode+0x7b/0x7d
                         [<c03a164d>] dev_set_rx_mode+0x23/0x36
                         [<c03a3d28>] dev_open+0x5e/0x77
                         [<c03a29f7>] dev_change_flags+0x9d/0x14b
                         [<c03a17fb>] __dev_get_by_name+0x68/0x73
                         [<c03e3828>] devinet_ioctl+0x22b/0x536
                         [<c03a3b1d>] dev_ioctl+0x46f/0x5b7
                         [<c0399c50>] sock_ioctl+0x167/0x18b
                         [<c0399ae9>] sock_ioctl+0x0/0x18b
                         [<c01725f7>] do_ioctl+0x1f/0x62
                         [<c0172867>] vfs_ioctl+0x22d/0x23f
                         [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                         [<c01728ac>] sys_ioctl+0x33/0x4b
                         [<c0103e92>] sysenter_past_esp+0x5f/0xa5
                         [<ffffffff>] 0xffffffff
    softirq-on-R at:
                         [<c0141986>] mark_lock+0x64/0x451
                         [<c013575e>] __kernel_text_address+0x5/0xe
                         [<c0104ee2>] dump_trace+0x83/0x8d
                         [<c0142889>] __lock_acquire+0x4a7/0xc07
                         [<c013fc76>] save_trace+0x37/0x89
                         [<c0133c57>] run_workqueue+0x87/0x1b6
                         [<c0143062>] lock_acquire+0x79/0x93
                         [<c02eee5d>] bond_mii_monitor+0x19/0x85
                         [<c0439f25>] _read_lock+0x36/0x5f
                         [<c02eee5d>] bond_mii_monitor+0x19/0x85
                         [<c02eee5d>] bond_mii_monitor+0x19/0x85
                         [<c0133cab>] run_workqueue+0xdb/0x1b6
                         [<c0133c57>] run_workqueue+0x87/0x1b6
                         [<c02eee44>] bond_mii_monitor+0x0/0x85
                         [<c01346cb>] worker_thread+0x0/0x85
                         [<c0134744>] worker_thread+0x79/0x85
                         [<c0137179>] autoremove_wake_function+0x0/0x35
                         [<c01370c2>] kthread+0x38/0x5e
                         [<c013708a>] kthread+0x0/0x5e
                         [<c0104baf>] kernel_thread_helper+0x7/0x10
                         [<ffffffff>] 0xffffffff
    hardirq-on-R at:
                         [<c013fe0a>] get_lock_stats+0xd/0x2e
                         [<c013fe35>] put_lock_stats+0xa/0x1e
                         [<c0142844>] __lock_acquire+0x462/0xc07
                         [<c0141dac>] mark_held_locks+0x39/0x53
                         [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
                         [<c0143062>] lock_acquire+0x79/0x93
                         [<c02edcc1>] bond_get_stats+0x28/0xd0
                         [<c0439ec6>] _read_lock_bh+0x3b/0x64
                         [<c02edcc1>] bond_get_stats+0x28/0xd0
                         [<c02edcc1>] bond_get_stats+0x28/0xd0
                         [<c03aa3bf>] rtnl_fill_ifinfo+0x2bf/0x563
                         [<c03aa93d>] rtmsg_ifinfo+0x5d/0xdf
                         [<c03aa9fe>] rtnetlink_event+0x3f/0x42
                         [<c013ac20>] notifier_call_chain+0x2a/0x52
                         [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
                         [<c03a31b6>] register_netdevice+0x2a7/0x2e7
                         [<c02ed862>] bond_create+0x1f2/0x26a
                         [<c05bedcd>] bonding_init+0x761/0x7ea
                         [<c05be635>] e1000_init_module+0x45/0x7c
                         [<c05a9499>] kernel_init+0x150/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c05a9349>] kernel_init+0x0/0x2b7
                         [<c0104baf>] kernel_thread_helper+0x7/0x10
                         [<ffffffff>] 0xffffffff
  }
  ... key      at: [<c08777d0>] __key.32969+0x0/0x8
  -> (_xmit_ETHER){-...} ops: 8 {
     initial-use  at:
                           [<c014289c>] __lock_acquire+0x4ba/0xc07
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c04120ec>] igmp6_group_added+0x56/0x11d
                           [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                           [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                           [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                           [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                           [<c040180c>] ipv6_add_dev+0x21c/0x24b
                           [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                           [<c0401def>] addrconf_notify+0x60/0x7b7
                           [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                           [<c0141dac>] mark_held_locks+0x39/0x53
                           [<c043903e>] mutex_lock_nested+0x286/0x2ac
                           [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                           [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                           [<c05c5bda>] addrconf_init+0xad/0x193
                           [<c05c5b48>] addrconf_init+0x1b/0x193
                           [<c05c5a20>] inet6_init+0x1f0/0x2ad
                           [<c05a9499>] kernel_init+0x150/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c0104baf>] kernel_thread_helper+0x7/0x10
                           [<ffffffff>] 0xffffffff
     hardirq-on-W at:
                           [<c0141986>] mark_lock+0x64/0x451
                           [<c014286a>] __lock_acquire+0x488/0xc07
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c0439d3a>] _spin_lock_bh+0x3b/0x64
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c03a5a79>] dev_mc_add+0x1a/0x6a
                           [<c04120ec>] igmp6_group_added+0x56/0x11d
                           [<c0412480>] ipv6_dev_mc_inc+0x2a3/0x31c
                           [<c0410100>] igmp6_mc_seq_start+0x106/0x138
                           [<c04124b5>] ipv6_dev_mc_inc+0x2d8/0x31c
                           [<c04121dd>] ipv6_dev_mc_inc+0x0/0x31c
                           [<c040180c>] ipv6_add_dev+0x21c/0x24b
                           [<c040b055>] ndisc_ifinfo_sysctl_change+0x0/0x1ef
                           [<c0401def>] addrconf_notify+0x60/0x7b7
                           [<c0142fa1>] __lock_acquire+0xbbf/0xc07
                           [<c0141dac>] mark_held_locks+0x39/0x53
                           [<c043903e>] mutex_lock_nested+0x286/0x2ac
                           [<c0141f9f>] trace_hardirqs_on+0x122/0x14c
                           [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f25>] register_netdevice_notifier+0xe/0x126
                           [<c03a3f60>] register_netdevice_notifier+0x49/0x126
                           [<c05c5bda>] addrconf_init+0xad/0x193
                           [<c05c5b48>] addrconf_init+0x1b/0x193
                           [<c05c5a20>] inet6_init+0x1f0/0x2ad
                           [<c05a9499>] kernel_init+0x150/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c0104baf>] kernel_thread_helper+0x7/0x10
                           [<ffffffff>] 0xffffffff
   }
   ... key      at: [<c087adc8>] netdev_xmit_lock_key+0x8/0x1c0
  ... acquired at:
    [<c0142dff>] __lock_acquire+0xa1d/0xc07
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
    [<c0109ef2>] save_stack_trace+0x20/0x3a
    [<c0143062>] lock_acquire+0x79/0x93
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c0439d3a>] _spin_lock_bh+0x3b/0x64
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c03a5a79>] dev_mc_add+0x1a/0x6a
    [<c02ee492>] bond_change_active_slave+0x1a9/0x3bf
    [<c02ec7c3>] bond_update_speed_duplex+0x26/0x65
    [<c02ee9af>] bond_select_active_slave+0x95/0xcd
    [<c02ed22b>] bond_compute_features+0x45/0x84
    [<c02ef9be>] bond_enslave+0x6a7/0x884
    [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
    [<c02f616d>] bonding_store_slaves+0x1ae/0x2fb
    [<c02f5fbf>] bonding_store_slaves+0x0/0x2fb
    [<c02ce8d7>] dev_attr_store+0x27/0x2c
    [<c019bcb9>] sysfs_write_file+0xad/0xe0
    [<c019bc0c>] sysfs_write_file+0x0/0xe0
    [<c0168ddc>] vfs_write+0x8a/0x10c
    [<c0118566>] do_page_fault+0x0/0x54a
    [<c0169361>] sys_write+0x41/0x67
    [<c0103e92>] sysenter_past_esp+0x5f/0xa5
    [<ffffffff>] 0xffffffff

  -> (lweventlist_lock){.+..} ops: 10 {
     initial-use  at:
                           [<c0141986>] mark_lock+0x64/0x451
                           [<c014289c>] __lock_acquire+0x4ba/0xc07
                           [<c02e365c>] e1000_read_phy_reg+0x1c7/0x1d3
                           [<c02e348b>] e1000_write_phy_reg+0xb9/0xc3
                           [<c024a7de>] delay_tsc+0x25/0x3b
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03abacf>] linkwatch_add_event+0xd/0x2c
                           [<c043a057>] _spin_lock_irqsave+0x3f/0x6c
                           [<c03abacf>] linkwatch_add_event+0xd/0x2c
                           [<c03abacf>] linkwatch_add_event+0xd/0x2c
                           [<c03abb93>] linkwatch_fire_event+0x25/0x37
                           [<c02e1c43>] e1000_probe+0xad1/0xbe8
                           [<c0257f3f>] pci_device_probe+0x36/0x57
                           [<c02d0e5f>] driver_probe_device+0xe1/0x15f
                           [<c043a2d1>] _spin_unlock+0x25/0x3b
                           [<c043758a>] klist_next+0x58/0x6d
                           [<c02d0f6f>] __driver_attach+0x0/0x7f
                           [<c02d0fb8>] __driver_attach+0x49/0x7f
                           [<c02d0403>] bus_for_each_dev+0x36/0x58
                           [<c02d0cb7>] driver_attach+0x16/0x18
                           [<c02d0f6f>] __driver_attach+0x0/0x7f
                           [<c02d06fa>] bus_add_driver+0x6d/0x18d
                           [<c0258089>] __pci_register_driver+0x53/0x7f
                           [<c05be635>] e1000_init_module+0x45/0x7c
                           [<c05a9499>] kernel_init+0x150/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c05a9349>] kernel_init+0x0/0x2b7
                           [<c0104baf>] kernel_thread_helper+0x7/0x10
                           [<ffffffff>] 0xffffffff
     in-softirq-W at:
                           [<c011d20a>] __wake_up_common+0x32/0x5c
                           [<c0142822>] __lock_acquire+0x440/0xc07
                           [<c043a39d>] _spin_unlock_irqrestore+0x40/0x58
                           [<c0143062>] lock_acquire+0x79/0x93
                           [<c03abacf>] linkwatch_add_event+0xd/0x2c
                           [<c02dff01>] e1000_watchdog+0x0/0x5c9
                           [<c043a057>] _spin_lock_irqsave+0x3f/0x6c
                           [<c03abacf>] linkwatch_add_event+0xd/0x2c
                           [<c03abacf>] linkwatch_add_event+0xd/0x2c
                           [<c03abb93>] linkwatch_fire_event+0x25/0x37
                           [<c03aeb1a>] netif_carrier_on+0x16/0x27
                           [<c02e0156>] e1000_watchdog+0x255/0x5c9
                           [<c02dff01>] e1000_watchdog+0x0/0x5c9
                           [<c012df52>] run_timer_softirq+0xfa/0x15d
                           [<c012a8a6>] __do_softirq+0x56/0xdb
                           [<c0141f89>] trace_hardirqs_on+0x10c/0x14c
                           [<c012a8b8>] __do_softirq+0x68/0xdb
                           [<c012a961>] do_softirq+0x36/0x51
                           [<c012ae4a>] local_bh_enable_ip+0xad/0xed
                           [<c03bf0df>] rt_run_flush+0x64/0x8b
                           [<c03e7924>] ip_mc_inc_group+0x184/0x1c1
                           [<c03e79a2>] ip_mc_up+0x41/0x59
                           [<c03e32dc>] inetdev_event+0x257/0x465
                           [<c03aa8da>] rtnl_notify+0x3a/0x40
                           [<c03aa997>] rtmsg_ifinfo+0xb7/0xdf
                           [<c013ac20>] notifier_call_chain+0x2a/0x52
                           [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
                           [<c03a3d3b>] dev_open+0x71/0x77
                           [<c02ef626>] bond_enslave+0x30f/0x884
                           [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
                           [<c02f6161>] bonding_store_slaves+0x1a2/0x2fb
                           [<c02f616d>] bonding_store_slaves+0x1ae/0x2fb
                           [<c02f5fbf>] bonding_store_slaves+0x0/0x2fb
                           [<c02ce8d7>] dev_attr_store+0x27/0x2c
                           [<c019bcb9>] sysfs_write_file+0xad/0xe0
                           [<c019bc0c>] sysfs_write_file+0x0/0xe0
                           [<c0168ddc>] vfs_write+0x8a/0x10c
                           [<c0118566>] do_page_fault+0x0/0x54a
                           [<c0169361>] sys_write+0x41/0x67
                           [<c0103e92>] sysenter_past_esp+0x5f/0xa5
                           [<ffffffff>] 0xffffffff
   }
   ... key      at: [<c058a194>] lweventlist_lock+0x14/0x40
  ... acquired at:
    [<c0142dff>] __lock_acquire+0xa1d/0xc07
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c0142fa1>] __lock_acquire+0xbbf/0xc07
    [<c0143062>] lock_acquire+0x79/0x93
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c043a057>] _spin_lock_irqsave+0x3f/0x6c
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c03abacf>] linkwatch_add_event+0xd/0x2c
    [<c03abb93>] linkwatch_fire_event+0x25/0x37
    [<c03aeb1a>] netif_carrier_on+0x16/0x27
    [<c02ede2c>] bond_set_carrier+0x31/0x55
    [<c02ee9b6>] bond_select_active_slave+0x9c/0xcd
    [<c02ed22b>] bond_compute_features+0x45/0x84
    [<c02ef9be>] bond_enslave+0x6a7/0x884
    [<c043905c>] mutex_lock_nested+0x2a4/0x2ac
    [<c02f616d>] bonding_store_slaves+0x1ae/0x2fb
    [<c02f5fbf>] bonding_store_slaves+0x0/0x2fb
    [<c02ce8d7>] dev_attr_store+0x27/0x2c
    [<c019bcb9>] sysfs_write_file+0xad/0xe0
    [<c019bc0c>] sysfs_write_file+0x0/0xe0
    [<c0168ddc>] vfs_write+0x8a/0x10c
    [<c0118566>] do_page_fault+0x0/0x54a
    [<c0169361>] sys_write+0x41/0x67
    [<c0103e92>] sysenter_past_esp+0x5f/0xa5
    [<ffffffff>] 0xffffffff


stack backtrace:
Pid: 9, comm: events/0 Not tainted 2.6.24-rc5 #1
  [<c0140b38>] print_irq_inversion_bug+0x108/0x112
  [<c014191d>] check_usage_forwards+0x3c/0x41
  [<c0141b09>] mark_lock+0x1e7/0x451
  [<c0142822>] __lock_acquire+0x440/0xc07
  [<c011d686>] update_curr+0x52/0xc4
  [<c013f175>] tick_sched_timer+0x129/0x165
  [<c0143062>] lock_acquire+0x79/0x93
  [<c0411c52>] mld_ifc_timer_expire+0x130/0x1fb
  [<c0411b22>] mld_ifc_timer_expire+0x0/0x1fb
  [<c0439d3a>] _spin_lock_bh+0x3b/0x64
  [<c0411c52>] mld_ifc_timer_expire+0x130/0x1fb
  [<c0411c52>] mld_ifc_timer_expire+0x130/0x1fb
  [<c0411b22>] mld_ifc_timer_expire+0x0/0x1fb
  [<c0141f89>] trace_hardirqs_on+0x10c/0x14c
  [<c0411b22>] mld_ifc_timer_expire+0x0/0x1fb
  [<c012df52>] run_timer_softirq+0xfa/0x15d
  [<c012a8a6>] __do_softirq+0x56/0xdb
  [<c0141f89>] trace_hardirqs_on+0x10c/0x14c
  [<c012a8b8>] __do_softirq+0x68/0xdb
  [<c012a961>] do_softirq+0x36/0x51
  [<c012ae4a>] local_bh_enable_ip+0xad/0xed
  [<c03bf0df>] rt_run_flush+0x64/0x8b
  [<c03e926e>] fib_netdev_event+0x61/0x65
  [<c013ac20>] notifier_call_chain+0x2a/0x52
  [<c013ac6a>] raw_notifier_call_chain+0x17/0x1a
  [<c03a2abd>] netdev_state_change+0x18/0x29
  [<c03abcf5>] __linkwatch_run_queue+0x150/0x17e
  [<c03abd40>] linkwatch_event+0x1d/0x22
  [<c0133cab>] run_workqueue+0xdb/0x1b6
  [<c0133c57>] run_workqueue+0x87/0x1b6
  [<c03abd23>] linkwatch_event+0x0/0x22
  [<c01346cb>] worker_thread+0x0/0x85
  [<c0134744>] worker_thread+0x79/0x85
  [<c0137179>] autoremove_wake_function+0x0/0x35
  [<c01370c2>] kthread+0x38/0x5e
  [<c013708a>] kthread+0x0/0x5e
  [<c0104baf>] kernel_thread_helper+0x7/0x10
  =======================
bonding: bond0: enslaving eth1 as a backup interface with a down link.
bond0: no IPv6 routers present



Best regards,

 				Krzysztof Olędzki

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