I ran into this error today from a kernel I built last night based on
the latest wireless-testing branch. Correct me if I'm wrong, but it
looks to be b43legacy related. I'm a bit new to kernel debugging but
can try to provide additional information if instructions on how to do
so are provided.
--------------------------------------------------------------------------------------
dmesg output:
--------------------------------------------------------------------------------------
WARNING: at kernel/softirq.c:141 local_bh_enable+0x1f/0x59()
Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4
nf_conntrack ip_tables x_tables radeon drm binfmt_misc ppdev lp
dm_snapshot dm_mirror dm_log dm_mod b43legacy mac80211 cfg80211
led_class snd_ali5451 snd_ac97_codec ac97_bus snd_pcm_oss
snd_mixer_oss ati_agp ibmcam usbvideo ssb pcmcia snd_pcm snd_timer
evdev videodev v4l1_compat container battery ac button firmware_class
agpgart i2c_ali1535 snd video output parport_pc parport yenta_socket
rsrc_nonstatic pcmcia_core psmouse serio_raw i2c_ali15x3 i2c_core
soundcore snd_page_alloc pcspkr reiserfs ide_cd_mod cdrom ide_disk
alim15x3 natsemi ide_pci_generic ide_core ohci_hcd usbcore thermal
processor fan
Pid: 1371, comm: b43legacy Not tainted 2.6.26-rc6-wl #1
[<c0113be7>] warn_on_slowpath+0x40/0x66
[<c0111c60>] check_preempt_wakeup+0xa2/0xc0
[<c0120d0d>] autoremove_wake_function+0xc/0x2b
[<c010fc44>] __wake_up_common+0x2d/0x52
[<c011126e>] __wake_up+0xf/0x15
[<c0113f89>] wake_up_klogd+0x2b/0x2d
[<c01981ed>] scnprintf+0x1f/0x2b
[<c0117477>] local_bh_enable+0x1f/0x59
[<dcf44045>] __sta_info_unlink+0xa9/0x134 [mac80211]
[<dcf4453f>] sta_info_unlink+0x9/0xd [mac80211]
[<dcf48968>] ieee80211_associated+0x9f/0x148 [mac80211]
[<dcf4b463>] ieee80211_sta_work+0x4cb/0x64f [mac80211]
[<c0110392>] update_curr+0x3d/0x52
[<c01104ee>] dequeue_entity+0xf/0x8d
[<c0111979>] dequeue_task_fair+0x13/0x27
[<c010fab2>] dequeue_task+0xa/0x14
[<c0249b01>] schedule+0x22e/0x24a
[<dcf4af98>] ieee80211_sta_work+0x0/0x64f [mac80211]
[<c011e7a7>] run_workqueue+0x63/0xca
[<c011ec96>] worker_thread+0x0/0xb7
[<c011ed42>] worker_thread+0xac/0xb7
[<c0120d01>] autoremove_wake_function+0x0/0x2b
[<c011ec96>] worker_thread+0x0/0xb7
[<c0120ba6>] kthread+0x36/0x5c
[<c0120b70>] kthread+0x0/0x5c
[<c010390b>] kernel_thread_helper+0x7/0x10
----------------------------------------------------------------------------------------
relevant lspci information:
----------------------------------------------------------------------------------------
00:09.0 0280: 14e4:4320 (rev 02)
Subsystem: 0e11:00e7
Flags: bus master, fast devsel, latency 64, IRQ 10
Memory at d0000000 (32-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: b43-pci-bridge
Kernel modules: ssb
---------------------------------------------------------------------------------------
b43legacy info:
---------------------------------------------------------------------------------------
b43legacy-phy0: Broadcom 4306 WLAN found
b43legacy-phy0 debug: Found PHY: Analog 1, Type 2, Revision 1
b43legacy-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2050, Revision 2
b43legacy-phy0 debug: Radio initialized
b43legacy-phy0: Loading firmware version 0x127, patch level 14
(2005-04-18 02:36:27)
b43legacy-phy0 debug: Chip initialized
b43legacy-phy0 debug: 30-bit DMA initialized
b43legacy-phy0 debug: Wireless interface started
b43legacy-phy0 debug: Adding Interface type 2
b43legacy-phy0 warning: Unexpected value for chanstat (0x7C00)
Regards,
David Ellingsworth
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