Messages in this thread |  | | Date | Sun, 01 Sep 2002 22:13:23 +0100 | From | Tony Hoyle <> | Subject | Re: Oops in pl2303 driver |
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Greg KH wrote: > > I'm guessing thie is 2.4.20-pre5? If so can you try the following two > patches that I just sent off to Marcelo: > http://www.kernel.org/pub/linux/kernel/people/gregkh/usb/2.4/usb-usbserial-2.4.20-pre5.patch > and > http://www.kernel.org/pub/linux/kernel/people/gregkh/usb/2.4/usb-pl2303-2.4.20-pre5.patch > > and let me know if that solves the problem for you or not? > > No change (new oops appended... looks the same as the old one basically)
I also tried 2.5.32 and got exactly the same oops.
To reproduce... type 'cat /dev/ttyUSB0' and hit control-C.
I have tried removing all modules except the USB serial related ones and get exactly the same, so I think the references to 'mousedev' are bogus in the oops (the taint is from the VMWare modules but I get the same without them so I don't think they're affecting anything).
Tony
Sep 1 22:04:49 spock kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000014 Sep 1 22:04:49 spock kernel: d48a1344 Sep 1 22:04:49 spock kernel: *pde = 00000000 Sep 1 22:04:49 spock kernel: Oops: 0000 Sep 1 22:04:49 spock kernel: CPU: 0 Sep 1 22:04:49 spock kernel: EIP: 0010:[mousedev:__insmod_mousedev_O/lib/modules/2.4.20-pre5/kernel/drivers/+-298172/96] Tainted: PF Sep 1 22:04:49 spock kernel: EFLAGS: 00010087 Sep 1 22:04:49 spock kernel: eax: cf63b000 ebx: 00000000 ecx: cf4ebc00 edx: 00000000 Sep 1 22:04:49 spock kernel: esi: cf7ad440 edi: 00000000 ebp: 00000246 esp: ce45bd80 Sep 1 22:04:49 spock kernel: ds: 0018 es: 0018 ss: 0018 Sep 1 22:04:49 spock kernel: Process cat (pid: 912, stackpage=ce45b000) Sep 1 22:04:49 spock kernel: Stack: 00000000 cf7ad440 00000000 00000282 d48a2b10 cf7ad440 cf7ad444 cf7ad440 Sep 1 22:04:49 spock kernel: 00000286 cf7021c0 00000001 00000000 ce731400 cf70826c d48a1fe2 cf7ad440 Sep 1 22:04:49 spock kernel: cf4ebc00 ffffffff cf4ebc1c cf4ebc00 cf70826c d4891146 cf7ad440 d4920f39 Sep 1 22:04:49 spock kernel: Call Trace: [mousedev:__insmod_mousedev_O/lib/modules/2.4.20-pre5/kernel/drivers/+-292080/96] [mousedev:__insmod_mousedev_O/lib/modules/2.4.20-pre5/kernel/drivers/+-294942/96] [mousedev:__insmod_mousedev_O/lib/modules/2.4.20-pre5/kernel/drivers/+-364218/96] [<d4920f39>] [<d491a36f>] Sep 1 22:04:49 spock kernel: [<d491a42b>] [release_dev+576/1232] [__free_pages+27/32] [free_page_and_swap_cache+51/64] [__free_pte+64/80] [zap_page_range+403/576] Sep 1 22:04:49 spock kernel: Code: 8b 52 14 8b 42 e8 8b 7a ec 25 00 00 00 2f 0d 00 00 80 01 89
>>eax; cf63b000 <_end+f371cbc/14587d1c> >>ecx; cf4ebc00 <_end+f2228bc/14587d1c> >>esi; cf7ad440 <_end+f4e40fc/14587d1c> >>esp; ce45bd80 <_end+e192a3c/14587d1c>
Trace; d491a42b <[parport_pc]__module_parm_verbose_probing+4cd/9fa>
Code; 00000000 Before first symbol 00000000 <_EIP>: Code; 00000000 Before first symbol 0: 8b 52 14 mov 0x14(%edx),%edx Code; 00000003 Before first symbol 3: 8b 42 e8 mov 0xffffffe8(%edx),%eax Code; 00000006 Before first symbol 6: 8b 7a ec mov 0xffffffec(%edx),%edi Code; 00000009 Before first symbol 9: 25 00 00 00 2f and $0x2f000000,%eax Code; 0000000e Before first symbol e: 0d 00 00 80 01 or $0x1800000,%eax Code; 00000013 Before first symbol 13: 89 00 mov %eax,(%eax)
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