Public bug reported:
After detaching my unbranded, atmel-based wlan USB card, I get system beeps and
the following information:
Mar 23 19:07:14 localhost kernel: [17180304.524000] usb 2-1: USB disconnect,
address 3
Mar 23 19:07:14 localhost kernel: [17180304.524000]
drivers/usb/net/atmel/at76c503-fw_skel.c: wlan0 disconnecting
Mar 23 19:07:14 localhost kernel: [17180304.524000]
drivers/usb/net/atmel/at76c503.c: at76c503_delete_device: rtnl_lock already
taken
Mar 23 19:07:14 localhost kernel: [17180304.548000] ------------[ cut here
]------------
Mar 23 19:07:14 localhost kernel: [17180304.548000] kernel BUG at
net/core/dev.c:3134!
Mar 23 19:07:14 localhost kernel: [17180304.548000] invalid opcode: 0000 [#1]
Mar 23 19:07:14 localhost kernel: [17180304.548000] Modules linked in: ipv6
binfmt_misc rfcomm hidp l2cap bluetooth speedstep_lib cpufreq_userspace
cpufreq_stats freq_table cpufreq_powersave cpufreq_ondemand
cpufreq_conservative video tc1100_wmi sbs sony_acpi pcc_acpi i2c_ec hotkey
dev_acpi button battery container ac asus_acpi nls_iso8859_1 nls_cp437 vfat fat
nls_utf8 ntfs af_packet dm_mod md_mod lp tsdev snd_cmipci gameport nvidia
snd_pcm_oss snd_mixer_oss spca5xx snd_pcm snd_page_alloc snd_opl3_lib snd_timer
snd_hwdep snd_mpu401_uart snd_rawmidi snd_seq_device videodev 8139cp 8139too
mii i2c_core evdev serio_raw snd at76c505_rfmd2958 at76c503 at76_usbdfu
soundcore parport_pc psmouse pcspkr parport rtc intel_agp agpgart shpchp
pci_hotplug floppy ext3 jbd ehci_hcd uhci_hcd usbcore ide_generic ide_cd cdrom
ide_disk piix generic thermal processor fan fbcon tileblit font bitblit
softcursor vesafb capability commoncap
Mar 23 19:07:14 localhost kernel: [17180304.548000] CPU: 0
Mar 23 19:07:14 localhost kernel: [17180304.548000] EIP:
0060:[free_netdev+58/80] Tainted: P VLI
Mar 23 19:07:14 localhost kernel: [17180304.548000] EFLAGS: 00010297
(2.6.17-11-386 #2)
Mar 23 19:07:14 localhost kernel: [17180304.548000] EIP is at
free_netdev+0x3a/0x50
Mar 23 19:07:14 localhost kernel: [17180304.548000] eax: 00000002 ebx:
dd73a280 ecx: dd73a464 edx: dd73a000
Mar 23 19:07:14 localhost kernel: [17180304.548000] esi: dd73a45c edi:
000000a0 ebp: 00000296 esp: deb77e78
Mar 23 19:07:14 localhost kernel: [17180304.548000] ds: 007b es: 007b ss:
0068
Mar 23 19:07:14 localhost kernel: [17180304.548000] Process khubd (pid: 1831,
threadinfo=deb76000 task=df9c1030)
Mar 23 19:07:14 localhost kernel: [17180304.548000] Stack: e098f227 e0997434
e0993ee8 e09939e3 dd73a280 e093a080 e093a0a4 df976814
Mar 23 19:07:14 localhost kernel: [17180304.548000] dd73a280 e093a080
e093a0a4 df976814 e0939036 e09394c8 e09391b4 dd73a000
Mar 23 19:07:14 localhost kernel: [17180304.548000] df976800 e08a4412
df97687c df976814 c022ab9b df976814 df976814 e08baac0
Mar 23 19:07:14 localhost kernel: [17180304.548000] Call Trace:
Mar 23 19:07:14 localhost kernel: [17180304.548000] <e098f227>
at76c503_delete_device+0x177/0x2b0 [at76c503] <e0939036>
at76c50x_disconnect+0x36/0x50 [at76c505_rfmd2958]
Mar 23 19:07:14 localhost kernel: [17180304.548000] <e08a4412>
usb_unbind_interface+0x32/0x70 [usbcore] <c022ab9b>
__device_release_driver+0x5b/0xa0
Mar 23 19:07:14 localhost kernel: [17180304.548000] <c022ae4b>
device_release_driver+0x1b/0x30 <c022a3d7> bus_remove_device+0x77/0x90
Mar 23 19:07:14 localhost kernel: [17180304.548000] <c0229465>
device_del+0x35/0x70 <e08a2766> usb_disable_device+0x86/0xe0 [usbcore]
Mar 23 19:07:14 localhost kernel: [17180304.548000] <e089e836>
usb_disconnect+0x96/0xe0 [usbcore] <e089f7e9> hub_thread+0x259/0xc20 [usbcore]
Mar 23 19:07:14 localhost kernel: [17180304.548000] <c02c000a>
svc_ioctl+0xda/0x290 <c012a640> autoremove_wake_function+0x0/0x50
Mar 23 19:07:14 localhost kernel: [17180304.548000] <c012a2d7>
kthread+0xa7/0xe0 <e089f590> hub_thread+0x0/0xc20 [usbcore]
Mar 23 19:07:14 localhost kernel: [17180304.548000] <c012a230>
kthread+0x0/0xe0 <c0101005> kernel_thread_helper+0x5/0x10
Mar 23 19:07:14 localhost kernel: [17180304.548000] Code: 64 29 c2 89 d0 e9 d7
32 ef ff 8d b4 26 00 00 00 00 83 f8 03 75 15 c7 82 70 01 00 00 04 00 00 00 8d
82 cc 01 00 00 e9 b6 9f fc ff <0f> 0b 3e 0c ac 8b 2f c0 eb e1 8d b6 00 00 00 00
8d bf 00 00 00
Mar 23 19:07:14 localhost kernel: [17180304.548000] EIP: [free_netdev+58/80]
free_netdev+0x3a/0x50 SS:ESP 0068:deb77e78
This, I think is related to the proprietary nvidia driver I installed,
because prior to installation there were no squeaks from the kernel when
I detach the USB card.
Also, after the kernel bug, I was unable to open any applications or
shut down properly. Is this what's meant to happen?
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
--
Kernel bug while disconnecting atmel usb wlan card
https://launchpad.net/bugs/94996
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