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SubjectRe: 2.6.37-rc1-git5 -- WARNING: at net/ipv4/devinet.c:137 in_dev_finish_destroy+0x3d/0x6e()
From
# ifconfig -a
eth0 Link encap:Ethernet HWaddr e0:cb:4e:0a:ba:16
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:48

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:12 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:720 (720.0 B) TX bytes:720 (720.0 B)

wlan0 Link encap:Ethernet HWaddr 00:1e:64:06:05:96
inet addr:192.168.1.104 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21e:64ff:fe06:596/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:86889 errors:0 dropped:1 overruns:0 frame:0
TX packets:53180 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:88241580 (88.2 MB) TX bytes:10132172 (10.1 MB)

# ip ro
192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.104 metric 2
169.254.0.0/16 dev wlan0 scope link metric 1000
default via 192.168.1.1 dev wlan0 proto static


On Mon, Nov 8, 2010 at 3:46 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> Le lundi 08 novembre 2010 à 21:42 +0100, Markus Trippelsdorf a écrit :
>> On Mon, Nov 08, 2010 at 09:29:26PM +0100, Eric Dumazet wrote:
>> > Le lundi 08 novembre 2010 à 12:06 -0800, Paul E. McKenney a écrit :
>> > > On Mon, Nov 08, 2010 at 02:56:06PM -0500, Miles Lane wrote:
>> > > > WARNING: at net/ipv4/devinet.c:137 in_dev_finish_destroy+0x3d/0x6e()
>> > > > Hardware name: UL50VT
>> > > > Modules linked in: ipv6 snd_hda_codec_hdmi snd_hda_codec_realtek
>> > > > snd_hda_intel snd_hda_codec snd_pcm_oss snd_hwdep snd_mixer_oss
>> > > > snd_seq_dummy snd_pcm snd_seq_oss snd_seq_midi iwlagn snd_rawmidi
>> > > > snd_seq_midi_event snd_seq iwlcore uvcvideo snd_timer mac80211
>> > > > snd_seq_device videodev v4l1_compat v4l2_compat_ioctl32 i915 snd
>> > > > rtc_cmos rtc_core psmouse cfg80211 soundcore drm_kms_helper
>> > > > snd_page_alloc rtc_lib asus_laptop video battery ac sparse_keymap wmi
>> > > > button rfkill processor power_supply led_class usb_storage sg sr_mod
>> > > > sd_mod cdrom atl1c ehci_hcd uhci_hcd thermal thermal_sys hwmon
>> > > > Pid: 0, comm: kworker/0:0 Not tainted 2.6.37-rc1-git5 #10
>> > > > Call Trace:
>> > > >  <IRQ>  [<ffffffff8103767e>] warn_slowpath_common+0x80/0x98
>> > > >  [<ffffffff810376ab>] warn_slowpath_null+0x15/0x17
>> > > >  [<ffffffff8130d549>] in_dev_finish_destroy+0x3d/0x6e
>> > > >  [<ffffffff8130d58e>] in_dev_put+0x14/0x16
>> > > >  [<ffffffff8130d5ab>] inet_rcu_free_ifa+0x1b/0x27
>> > > >  [<ffffffff810834a8>] __rcu_process_callbacks+0x1a4/0x2bc
>> > > >  [<ffffffff8108363b>] rcu_process_callbacks+0x7b/0x82
>> > > >  [<ffffffff8103cb9c>] __do_softirq+0xb8/0x15a
>> > > >  [<ffffffff8100394c>] call_softirq+0x1c/0x28
>> > > >  [<ffffffff81005637>] do_softirq+0x38/0x81
>> > > >  [<ffffffff8103cce9>] irq_exit+0x45/0x94
>> > > >  [<ffffffff8101ac1f>] smp_apic_timer_interrupt+0x78/0x86
>> > > >  [<ffffffff81003413>] apic_timer_interrupt+0x13/0x20
>> > > >  <EOI>  [<ffffffff8134aff6>] ? _raw_spin_unlock_irqrestore+0x3c/0x69
>> > > >  [<ffffffff81059cb3>] clockevents_notify+0x11e/0x12d
>> > > >  [<ffffffffa008e561>] ? acpi_idle_enter_bm+0x236/0x271 [processor]
>> > > >  [<ffffffffa008dfce>] lapic_timer_state_broadcast+0x41/0x43 [processor]
>> > > >  [<ffffffffa008e588>] acpi_idle_enter_bm+0x25d/0x271 [processor]
>> > > >  [<ffffffff8129db30>] cpuidle_idle_call+0x9e/0xda
>> > > >  [<ffffffff810012ea>] cpu_idle+0xce/0x10c
>> > > >  [<ffffffff81343ce8>] start_secondary+0x1fc/0x205
>> > > > ---[ end trace 1d49bc8ff0266634 ]---
>> > > > Freeing alive in_device ffff88013fe536d0
>> > >
>> > > Ilpo, thoughts?
>> > >
>> >
>> > Hmm...
>> >
>> >     WARN_ON(idev->mc_list);
>> >
>> > Might be a problem with refcounts somewhere...
>>
>> I have similar warnings in my logs, although its at
>> net/ipv4/devinet.c:136 in my case. Happened altogether three times in
>> the last few days and they all look the same:
>>
>> Nov  5 17:31:35 arch kernel: WARNING: at net/ipv4/devinet.c:136 in_dev_finish_destroy+0x5c/0x90()
>> Nov  5 17:31:35 arch kernel: Hardware name: System Product Name
>> Nov  5 17:31:35 arch kernel: Pid: 0, comm: kworker/0:1 Not tainted 2.6.37-rc1-00027-gff8b16d-dirty #4
>> Nov  5 17:31:35 arch kernel: Call Trace:
>> Nov  5 17:31:35 arch kernel: <IRQ>  [<ffffffff8105c9f6>] ? warn_slowpath_common+0x76/0xc0
>> Nov  5 17:31:35 arch kernel: [<ffffffff8141889c>] ? in_dev_finish_destroy+0x5c/0x90
>> Nov  5 17:31:35 arch kernel: [<ffffffff813c49e8>] ? dst_destroy+0x68/0x120
>> Nov  5 17:31:35 arch kernel: [<ffffffff813e888f>] ? dst_rcu_free+0x1f/0x30
>> Nov  5 17:31:35 arch kernel: [<ffffffff81090e0c>] ? __rcu_process_callbacks+0xfc/0x2f0
>> Nov  5 17:31:35 arch kernel: [<ffffffff8109103f>] ? rcu_process_callbacks+0x3f/0x70
>> Nov  5 17:31:35 arch kernel: [<ffffffff810621bc>] ? __do_softirq+0x9c/0x120
>> Nov  5 17:31:35 arch kernel: [<ffffffff81030fc9>] ? timer_interrupt+0x19/0x30
>> Nov  5 17:31:35 arch kernel: [<ffffffff8102ea4c>] ? call_softirq+0x1c/0x30
>> Nov  5 17:31:35 arch kernel: [<ffffffff8103080d>] ? do_softirq+0x4d/0x80
>> Nov  5 17:31:35 arch kernel: [<ffffffff8106232d>] ? irq_exit+0x8d/0x90
>> Nov  5 17:31:35 arch kernel: [<ffffffff810306c7>] ? do_IRQ+0x67/0xe0
>> Nov  5 17:31:35 arch kernel: [<ffffffff8144a153>] ? ret_from_intr+0x0/0xa
>> Nov  5 17:31:35 arch kernel: <EOI>  [<ffffffff81035ba0>] ? default_idle+0x20/0x40
>> Nov  5 17:31:35 arch kernel: [<ffffffff81035c12>] ? c1e_idle+0x52/0xf0
>> Nov  5 17:31:35 arch kernel: [<ffffffff8102c12c>] ? cpu_idle+0x4c/0xa0
>> Nov  5 17:31:35 arch kernel: ---[ end trace 143683935de8f41f ]---
>> Nov  5 17:31:35 arch kernel: Freeing alive in_device ffff88011ffba600
>>
>
> Hmm....
>
> Is commit 1f1b9c9990205759aae31b7734b0ede41a867f32 present in your
> kernel ? (fib: fib_result_assign() should not change fib refcounts)
>
> Could you provide some information ?
>
> ifconfig -a
>
> ip ro
>
> Thanks
>
>
>
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