[arch-general] Kernel OOPS with AVM fwlanusb

[Gerhard Brauer]

Hello,

i have a AVM wlan usb stick for testing, usb id 057C:6201.
I try the avm linux driver with kernel 2.6.23.12-2. Build and modprobe
is ok, inserting the stick gaves after a long period of waiting the
wlan0 device.
iwpriv wlan0 work, iwconfig stopped with a segfault and a oops.

I'm not a kernel guru or developer, but maybe could someone say (without a
full dump or so) what the reason for this trap?
(Yeah, i know the short answer: tainted by fwlanusb ;-)
If @tpowa reads this:
if see strcopy in trap, could this be something similar we have had with
avm fritz card and the objcopy-Patches?
Thank you for having a look at this!
Legend:	14:33:10 after modprobe and wlan0 ready
	14:33:45 iwconfig

-------------
Dec 22 14:33:10 tux1 fwlanusb: Config manager successully created and
started.
Dec 22 14:33:45 tux1 BUG: unable to handle kernel NULL pointer
dereference at virtual address 00000000
Dec 22 14:33:45 tux1 printing eip:
Dec 22 14:33:45 tux1 f8d9c38e
Dec 22 14:33:45 tux1 *pde = 00000000
Dec 22 14:33:45 tux1 Oops: 0000 [#1]
Dec 22 14:33:45 tux1 PREEMPT SMP
Dec 22 14:33:45 tux1 Modules linked in: fwlanusb(P) usb_storage ide_core
appletalk ipx p8022 psnap llc p8023 nvidia(P) ipv6 usblp usbhid hid
ff_memless ppdev tsdev lp pcspkr container parport_pc parport rtc_cmos
rtc_core rtc_lib ppp_generic psmouse serio_raw i2c_i801 i2c_core
ehci_hcd intel_agp agpgart uhci_hcd shpchp pci_hotplug sg evdev thermal
processor fan button battery ac smsc47m1 snd_seq_oss snd_seq_midi_event
snd_seq snd_seq_device snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_pcm
snd_timer snd_page_alloc snd_mixer_oss snd soundcore ac97_bus slhc
eepro100 e100 mii usbcore ext3 jbd mbcache sr_mod cdrom sd_mod ata_piix
ata_generic libata
Dec 22 14:33:45 tux1 CPU:    0
Dec 22 14:33:45 tux1 EIP:    0060:[<f8d9c38e>]    Tainted: P        VLI
Dec 22 14:33:45 tux1 EFLAGS: 00210282   (2.6.23-ARCH #1)
Dec 22 14:33:45 tux1 EIP is at strcpy+0xd/0x1b [fwlanusb]
Dec 22 14:33:45 tux1 eax: f1cc1f44   ebx: ffffffa1   ecx: f1cc1f44
edx: f8de351e
Dec 22 14:33:45 tux1 esi: 00000000   edi: c035b984   ebp: c038602c
esp: f1cc1e54
Dec 22 14:33:45 tux1 ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0068
Dec 22 14:33:45 tux1 Process iwconfig (pid: 7769, ti=f1cc0000
task=f1cc2a80 task.ti=f1cc0000)
Dec 22 14:33:45 tux1 Stack: c0419500 f1cc1f44 00008b01 f8ddf95c c035b984
00000000 f1e8a000 c015e356
Dec 22 14:33:45 tux1 c041950c c0419500 00200246 c04195c0 c04195c0
f1cc1f34 c0360d8a 00008b01
Dec 22 14:33:45 tux1 ffffffa1 f8825400 f1e8a000 c04195cc 22222222
22222222 22222222 f1e8a000
Dec 22 14:33:45 tux1 Call Trace:
Dec 22 14:33:45 tux1 [<f8ddf95c>] fwlanusb_get_name+0xc/0x10 [fwlanusb]
Dec 22 14:33:45 tux1 [<c035b984>] ioctl_standard_call+0x64/0x370
Dec 22 14:33:45 tux1 [<c015e356>] filemap_fault+0x206/0x490
Dec 22 14:33:45 tux1 [<c0360d8a>] __mutex_lock_slowpath+0x16a/0x2d0
Dec 22 14:33:45 tux1 [<f8825400>] e100_do_ioctl+0x0/0x30 [e100]
Dec 22 14:33:45 tux1 [<c035c046>] wext_handle_ioctl+0x3b6/0x450
Dec 22 14:33:45 tux1 [<f8ddf950>] fwlanusb_get_name+0x0/0x10 [fwlanusb]
Dec 22 14:33:45 tux1 [<f8ddf950>] fwlanusb_get_name+0x0/0x10 [fwlanusb]
Dec 22 14:33:45 tux1 [<c028b4a7>] pty_write+0x47/0x60
Dec 22 14:33:45 tux1 [<c02daf71>] dev_ioctl+0x341/0x350
Dec 22 14:33:45 tux1 [<c012474e>] __wake_up+0x3e/0x60
Dec 22 14:33:45 tux1 [<c02cd5e0>] sock_ioctl+0x0/0x210
Dec 22 14:33:45 tux1 [<c018aa3b>] do_ioctl+0x2b/0x90
Dec 22 14:33:45 tux1 [<c018acce>] vfs_ioctl+0x22e/0x2b0
Dec 22 14:33:45 tux1 [<c018adad>] sys_ioctl+0x5d/0x70
Dec 22 14:33:45 tux1 [<c0104472>] sysenter_past_esp+0x6b/0xa1
Dec 22 14:33:45 tux1 [<c0360000>] schedule+0x4a0/0x5e0
Dec 22 14:33:45 tux1 =======================
Dec 22 14:33:45 tux1 Code: c3 8b 4c 24 08 8b 54 24 0c 8b 44 24 10 89 4c
24 04 89 54 24 08 89 44 24 0c e9 b6 ff ff ff 57 56 83 ec 04 8b 74 24 14
8b 7c 24 10 <ac> aa 84 c0 75 fa 8b 44 24 10 59 5e 5f c3 57 56 83 ec 04
8b 74
Dec 22 14:33:45 tux1 EIP: [<f8d9c38e>] strcpy+0xd/0x1b [fwlanusb] SS:ESP
0068:f1cc1e54
---------------------------

Bye
	Gerhard

-- 
Dont't drink and root!