*** This bug is a duplicate of bug 561125 ***
https://bugs.launchpad.net/bugs/561125
I ran into this one today with the same trace. The symptom was that my
wireless connectivity went out. The OP's trace was in
/var/log/messages:
May 12 01:20:19 stuntman2 kernel: [32803.713158] ------------[ cut here
]------------
May 12 01:20:19 stuntman2 kernel: [32803.713169] WARNING: at
/build/buildd/linux-2.6.32/kernel/softirq.c:143 local_bh_enable_ip+0x7b/0xa0()
May 12 01:20:19 stuntman2 kernel: [32803.713175] Hardware name: LifeBook N6470
May 12 01:20:19 stuntman2 kernel: [32803.713178] Modules linked in: binfmt_misc
ppdev snd_hda_codec_atihdmi joydev snd_hda_codec_realtek fbcon tileblit font
bitblit softcursor vga16fb vgastate arc4 snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi pcmcia
snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device ath9k radeon
snd mac80211 ath ttm drm_kms_helper sdhci_pci yenta_socket rsrc_nonstatic sdhci
video output psmouse serio_raw cfg80211 fujitsu_laptop led_class soundcore
snd_page_alloc drm i2c_algo_bit pcmcia_core lp intel_agp parport ohci1394 sky2
ahci ieee1394
May 12 01:20:19 stuntman2 kernel: [32803.713271] Pid: 785, comm: phy0 Tainted:
G M 2.6.32-22-generic #33-Ubuntu
May 12 01:20:19 stuntman2 kernel: [32803.713275] Call Trace:
May 12 01:20:19 stuntman2 kernel: [32803.713286] [<ffffffff81066d0b>]
warn_slowpath_common+0x7b/0xc0
May 12 01:20:19 stuntman2 kernel: [32803.713293] [<ffffffff81066d64>]
warn_slowpath_null+0x14/0x20
May 12 01:20:19 stuntman2 kernel: [32803.713299] [<ffffffff8106de4b>]
local_bh_enable_ip+0x7b/0xa0
May 12 01:20:19 stuntman2 kernel: [32803.713308] [<ffffffff81540e99>]
_spin_unlock_bh+0x19/0x20
May 12 01:20:19 stuntman2 kernel: [32803.713326] [<ffffffffa02e8955>]
ath_tx_node_cleanup+0x185/0x1b0 [ath9k]
May 12 01:20:19 stuntman2 kernel: [32803.713342] [<ffffffffa02e2d77>]
ath9k_sta_notify+0x57/0xb0 [ath9k]
May 12 01:20:19 stuntman2 kernel: [32803.713359] [<ffffffffa018e89c>]
__sta_info_unlink+0x15c/0x1f0 [mac80211]
May 12 01:20:19 stuntman2 kernel: [32803.713373] [<ffffffffa018e96d>]
sta_info_unlink+0x3d/0x60 [mac80211]
May 12 01:20:19 stuntman2 kernel: [32803.713391] [<ffffffffa0196e96>]
ieee80211_set_disassoc+0x1b6/0x220 [mac80211]
May 12 01:20:19 stuntman2 kernel: [32803.713409] [<ffffffffa01989a0>] ?
ieee80211_sta_work+0x0/0x510 [mac80211]
May 12 01:20:19 stuntman2 kernel: [32803.713425] [<ffffffffa0198e75>]
ieee80211_sta_work+0x4d5/0x510 [mac80211]
May 12 01:20:19 stuntman2 kernel: [32803.713445] [<ffffffffa01a6aaa>] ?
ieee80211_queue_delayed_work+0x3a/0x50 [mac80211]
May 12 01:20:19 stuntman2 kernel: [32803.713462] [<ffffffffa01989a0>] ?
ieee80211_sta_work+0x0/0x510 [mac80211]
May 12 01:20:19 stuntman2 kernel: [32803.713471] [<ffffffff81080777>]
run_workqueue+0xc7/0x1a0
May 12 01:20:19 stuntman2 kernel: [32803.713478] [<ffffffff810808f3>]
worker_thread+0xa3/0x110
May 12 01:20:19 stuntman2 kernel: [32803.713485] [<ffffffff81085320>] ?
autoremove_wake_function+0x0/0x40
May 12 01:20:19 stuntman2 kernel: [32803.713492] [<ffffffff81080850>] ?
worker_thread+0x0/0x110
May 12 01:20:19 stuntman2 kernel: [32803.713499] [<ffffffff81084fa6>]
kthread+0x96/0xa0
May 12 01:20:19 stuntman2 kernel: [32803.713506] [<ffffffff810141ea>]
child_rip+0xa/0x20
May 12 01:20:19 stuntman2 kernel: [32803.713512] [<ffffffff81084f10>] ?
kthread+0x0/0xa0
May 12 01:20:19 stuntman2 kernel: [32803.713518] [<ffffffff810141e0>] ?
child_rip+0x0/0x20
May 12 01:20:19 stuntman2 kernel: [32803.713522] ---[ end trace
9b8272103868f18d ]---
/var/log/syslog started filling up with this:
May 12 01:20:01 stuntman2 kernel: [32786.137398] ath9k: timeout (100000 us) on
reg 0x9860: 0x00049d19 & 0x00000001 != 0x00000000
May 12 01:20:01 stuntman2 kernel: [32786.137411] ath9k: Unable to reset channel
(2447 Mhz) reset status -5
May 12 01:20:01 stuntman2 kernel: [32786.137429] ath9k: Unable to set channel
I've seen this on older ubuntu installs. This gets around it:
rmmod ath9k
modprobe ath9k
service network-manager restart
It'd be nice to know what's actually happening at some point, or if
there's a better way around it.
--
WARNING: at /build/buildd/linux-2.6.32/kernel/softirq.c:143
local_bh_enable_ip+0x61/0x90()
https://bugs.launchpad.net/bugs/562681
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
