2.5.67 Oops in usb_dump_interface after rmmod ov511

2.5.67 Oops in usb_dump_interface after rmmod ov511

[Kees Bakker]

If I do a "cat /proc/bus/usb/devices" after removing the ov511 module I get
an OOPS.
Here is the info from my syslog:

[... plugin the webcam ...]
Apr 13 20:25:59 iris kernel: drivers/usb/media/ov511.c: USB OV511 video device found
Apr 13 20:25:59 iris kernel: drivers/usb/media/ov511.c: model: D-Link DSB-C300
Apr 13 20:25:59 iris kernel: drivers/usb/media/ov511.c: Sensor is an OV7610
Apr 13 20:25:59 iris kernel: drivers/usb/media/ov511.c: Device at usb-00:11.2-2.4 registered to minor 0
Apr 13 20:25:59 iris kernel: drivers/usb/core/usb.c: registered new driver ov511
Apr 13 20:25:59 iris kernel: drivers/usb/media/ov511.c: v1.64 for Linux 2.5 : ov511 USB Camera Driver

[... rmmod ov511 ...]
Apr 13 20:26:43 iris kernel: drivers/usb/core/usb.c: deregistering driver ov511
Apr 13 20:26:43 iris kernel: drivers/usb/media/ov511.c: driver deregistered

[... cat /proc/bus/usb/devices ...]
Apr 13 20:26:46 iris kernel:  printing eip:
Apr 13 20:26:46 iris kernel: c027dd35
Apr 13 20:26:46 iris kernel: Oops: 0000 [#1]
Apr 13 20:26:46 iris kernel: CPU:    0
Apr 13 20:26:46 iris kernel: EIP:    0060:[usb_dump_interface_descriptor+85/176]    Not tainted
Apr 13 20:26:46 iris kernel: EFLAGS: 00010282
Apr 13 20:26:46 iris kernel: EIP is at usb_dump_interface_descriptor+0x55/0xb0
Apr 13 20:26:46 iris kernel: eax: e09e9640   ebx: d51d9e40   ecx: c036459b   edx: c036118b
Apr 13 20:26:46 iris kernel: esi: d456e0cd   edi: d0ef0680   ebp: 00000000   esp: d595fd80
Apr 13 20:26:46 iris kernel: ds: 007b   es: 007b   ss: 0068
Apr 13 20:26:46 iris kernel: Process cat (pid: 4583, threadinfo=d595e000 task=d0d51280)
Apr 13 20:26:46 iris kernel: Stack: 000000ff d456ff00 d456e0a6 d456ff00 c01b4b07 d456e0a6 2ba91f5a c03547cc 
Apr 13 20:26:46 iris kernel:        d595fdd4 c01b4b2f d0ef0680 d456e0cd d51d9e40 c027ddc5 d456e0cd d456ff00 
Apr 13 20:26:46 iris kernel:        d0ef0680 00000000 d0ef0680 00000001 d456e0cd d456ff00 c027df14 00000002 
Apr 13 20:26:46 iris kernel: Call Trace:
Apr 13 20:26:46 iris kernel:  [vsprintf+39/48] vsprintf+0x27/0x30
Apr 13 20:26:46 iris kernel:  [sprintf+31/48] sprintf+0x1f/0x30
Apr 13 20:26:46 iris kernel:  [usb_dump_interface+53/128] usb_dump_interface+0x35/0x80
Apr 13 20:26:46 iris kernel:  [usb_dump_config+148/224] usb_dump_config+0x94/0xe0
Apr 13 20:26:46 iris kernel:  [usb_dump_desc+170/192] usb_dump_desc+0xaa/0xc0
Apr 13 20:26:46 iris kernel:  [usb_device_dump+296/832] usb_device_dump+0x128/0x340
Apr 13 20:26:46 iris kernel:  [usb_device_dump+603/832] usb_device_dump+0x25b/0x340
Apr 13 20:26:46 iris kernel:  [usb_device_dump+603/832] usb_device_dump+0x25b/0x340
Apr 13 20:26:46 iris kernel:  [usb_device_read+194/272] usb_device_read+0xc2/0x110
Apr 13 20:26:46 iris kernel:  [vfs_read+188/304] vfs_read+0xbc/0x130
Apr 13 20:26:46 iris kernel:  [sys_read+62/96] sys_read+0x3e/0x60
Apr 13 20:26:46 iris kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Apr 13 20:26:46 iris kernel: 
Apr 13 20:26:46 iris kernel: Code: 8b 50 04 89 54 24 24 0f b6 43 07 89 44 24 20 0f b6 43 06 89 

-- 
============================================================
Kees Bakker
The Tardis
Doorn, The Netherlands                 kees.bakker@xs4all.nl
============================================================
A free society is one where it is safe to be unpopular

Re: 2.5.67 Oops in usb_dump_interface after rmmod ov511

[Greg KH]

On Sun, Apr 13, 2003 at 08:32:57PM +0200, Kees Bakker wrote:
> If I do a "cat /proc/bus/usb/devices" after removing the ov511 module I get
> an OOPS.
> Here is the info from my syslog:

Ouch, not good.

Does this happen for any other USB devices?

And can you add a bug to bugzilla.kernel.org for this, so I remember to
make sure it's fixed?  :)

thanks,

greg k-h

Re: 2.5.67 Oops in usb_dump_interface after rmmod ov511

[Kees Bakker]

>>>>> Greg KH writes:
> 
> On Sun, Apr 13, 2003 at 08:32:57PM +0200, Kees Bakker wrote:
>> If I do a "cat /proc/bus/usb/devices" after removing the ov511 module I get
>> an OOPS.
>> Here is the info from my syslog:
> 
> Ouch, not good.
> 
> Does this happen for any other USB devices?

Who knows. I don't have another USB device to try. Perhaps I could lend one.

> And can you add a bug to bugzilla.kernel.org for this, so I remember to
> make sure it's fixed?  :)

Done. (http://bugzilla.kernel.org/show_bug.cgi?id=585)

		Kees