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SubjectOOPS with test9 when plugging an Philips Webcam
Hi there!

FIRST: I did NOT load the pwc-driver from nemosoft! (I hope anybody
is satisfied now ;-)

I got the following kernel oops when plugging the webcam. There
wis NO driver installed! Just plugging in.

I attach the output form messages send through ksymoops, the USB relevant
part of my .config file.

It seams to me that when I plug the webcam there is a heavy corruption
of memory. Because although the oops is from netscape, it is not
always netscape. The next prog with heavy memory usage will produce
an oops when starting.

The first time I experienced the problem was with test8.

If I unplug the webcam I have a working system without any problems.



Best wishes
Norbert

--
ciao
norb

+-------------------------------------------------------------------+
| Norbert Preining http://www.logic.at/people/preining |
| University of Technology Vienna, Austria preining@logic.at |
| DSA: 0x09C5B094 (RSA: 0xCF1FA165) mail subject: get [DSA|RSA]-key |
+-------------------------------------------------------------------+
ksymoops 0.7c on i586 2.4.0-test9. Options used
-v /usr/src/linux/vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.0-test9/ (default)
-m /boot/System.map-2.4.0-test9 (specified)

Oct 9 09:51:08 mandala kernel: Unable to handle kernel paging request at virtual address 11010020
Oct 9 09:51:08 mandala kernel: c012ab28
Oct 9 09:51:08 mandala kernel: *pde = 00000000
Oct 9 09:51:08 mandala kernel: Oops: 0002
Oct 9 09:51:08 mandala kernel: CPU: 0
Oct 9 09:51:08 mandala kernel: EIP: 0010:[fget+32/40]
Oct 9 09:51:08 mandala kernel: EFLAGS: 00210206
Oct 9 09:51:08 mandala kernel: eax: c27d0c00 ebx: c1984000 ecx: 00000008 edx: 1101000c
Oct 9 09:51:08 mandala kernel: esi: 00000000 edi: 08dd8000 ebp: 00000020 esp: c1985fac
Oct 9 09:51:08 mandala kernel: ds: 0018 es: 0018 ss: 0018
Oct 9 09:51:08 mandala kernel: Process netscape (pid: 419, stackpage=c1985000)
Oct 9 09:51:08 mandala kernel: Stack: c0129f61 c1984000 00000000 08dd8000 bfffd9f4 c0109053 00000008 bfffdaac
Oct 9 09:51:08 mandala kernel: 00000020 00000000 08dd8000 bfffd9f4 00000003 0000002b 0000002b 00000003
Oct 9 09:51:08 mandala kernel: 40276174 00000023 00200216 bfffd9dc 0000002b
Oct 9 09:51:08 mandala kernel: Call Trace: [sys_read+17/204] [system_call+51/64]
Oct 9 09:51:08 mandala kernel: Code: ff 42 14 89 d0 c3 89 f6 8b 4c 24 04 ff 49 14 0f 94 c0 84 c0
Using defaults from ksymoops -t elf32-i386 -a i386

Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: ff 42 14 incl 0x14(%edx)
Code; 00000003 Before first symbol
3: 89 d0 mov %edx,%eax
Code; 00000005 Before first symbol
5: c3 ret
Code; 00000006 Before first symbol
6: 89 f6 mov %esi,%esi
Code; 00000008 Before first symbol
8: 8b 4c 24 04 mov 0x4(%esp,1),%ecx
Code; 0000000c Before first symbol
c: ff 49 14 decl 0x14(%ecx)
Code; 0000000f Before first symbol
f: 0f 94 c0 sete %al
Code; 00000012 Before first symbol
12: 84 c0 test %al,%al

Oct 9 09:51:08 mandala kernel: Unable to handle kernel paging request at virtual address 11010020
Oct 9 09:51:08 mandala kernel: *pde = 00000000
Oct 9 09:51:08 mandala kernel: Oops: 0000
Oct 9 09:51:08 mandala kernel: CPU: 0
Oct 9 09:51:08 mandala kernel: EIP: 0010:[filp_close+6/100]
Oct 9 09:51:08 mandala kernel: EFLAGS: 00210206
Oct 9 09:51:08 mandala kernel: eax: c27d0c00 ebx: 1101000c ecx: 00000000 edx: 1101000c
Oct 9 09:51:08 mandala kernel: esi: 00000000 edi: c3703d80 ebp: 00000001 esp: c1985e80
Oct 9 09:51:08 mandala kernel: ds: 0018 es: 0018 ss: 0018
Oct 9 09:51:08 mandala kernel: Process netscape (pid: 419, stackpage=c1985000)
Oct 9 09:51:08 mandala kernel: Stack: 0001ffff 00000000 c0116ac8 1101000c c3703d80 c32376e0 c1984000 0000000b
Oct 9 09:51:08 mandala kernel: c1984000 c3703ea0 c01170c1 c3703d80 00000000 00000000 11010020 c010957c
Oct 9 09:51:08 mandala kernel: 0000000b c010f295 c0200a5e c1985f78 00000002 c1984000 00000000 08dd8000
Oct 9 09:51:08 mandala kernel: Call Trace: [put_files_struct+84/184] [do_exit+185/500] [do_divide_error+0/172] [do_page_fault+789/960] [IRQ0x0f_interrupt+10318/19416] [do_signal+567/636] [sock_write+163/172]
Oct 9 09:51:09 mandala kernel: Code: 8b 43 14 85 c0 75 13 68 a2 5d 20 c0 e8 d5 af fe ff 31 c0 83

Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: 8b 43 14 mov 0x14(%ebx),%eax
Code; 00000003 Before first symbol
3: 85 c0 test %eax,%eax
Code; 00000005 Before first symbol
5: 75 13 jne 1a <_EIP+0x1a> 0000001a Before first symbol
Code; 00000007 Before first symbol
7: 68 a2 5d 20 c0 push $0xc0205da2
Code; 0000000c Before first symbol
c: e8 d5 af fe ff call fffeafe6 <_EIP+0xfffeafe6> fffeafe6 <END_OF_CODE+36f61b87/????>
Code; 00000011 Before first symbol
11: 31 c0 xor %eax,%eax
Code; 00000013 Before first symbol
13: 83 00 00 addl $0x0,(%eax)

CONFIG_USB=m
CONFIG_USB_DEVICEFS=y
CONFIG_USB_OHCI=m
CONFIG_USB_SCANNER=m
CONFIG_USB_AUDIO=m
CONFIG_USB_STORAGE=m
CONFIG_USB_HID=m
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