Thanks a lot for the response:
I use kernel 2.4.21 I am not too experienced with ksymoops: I got Jun 25 15:56:09 linux kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000048 Jun 25 15:56:09 linux kernel: c4b7b377 Jun 25 15:56:09 linux kernel: *pde = 00000000 Jun 25 15:56:09 linux kernel: Oops: 0000 Jun 25 15:56:09 linux kernel: CPU: 0 Jun 25 15:56:09 linux kernel: EIP: 0010:[<c4b7b377>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 Jun 25 15:56:09 linux kernel: EFLAGS: 00010246 Jun 25 15:56:09 linux kernel: eax: 00000000 ebx: be3ff6e8 ecx: c26a6a78 edx: c4b7b360 Jun 25 15:56:09 linux kernel: esi: 40047612 edi: 40047612 ebp: c1685f94 esp: c1685f7c Jun 25 15:56:09 linux kernel: ds: 0018 es: 0018 ss: 0018 Jun 25 15:56:09 linux kernel: Process java (pid: 559, stackpage=c1685000) Jun 25 15:56:09 linux kernel: Stack: 00000000 40047612 be3ff6e8 c358fdd4 c358fdd4 be3ff6e8 c1685fbc c01400c9 Jun 25 15:56:09 linux kernel: c26a4be4 c358fdd4 40047612 be3ff6e8 c1684000 be3ff6e8 0816d0e8 ffffffe7 Jun 25 15:56:09 linux kernel: be3ff6f4 c0108bb3 00000005 40047612 be3ff6e8 be3ff6e8 0816d0e8 be3ff6f4 Jun 25 15:56:09 linux kernel: Call Trace: [<c01400c9>] [<c0108bb3>] Jun 25 15:56:09 linux kernel: Code: 8b 40 48 ff d0 3d fd fd ff ff 75 05 b8 ea ff ff ff 8d 65 f8 Error (pclose_local): Oops_decode_part pclose failed 0xb Error (Oops_decode_part): no objdump lines read for /tmp/ksymoops.kMhvkC >>EIP; c4b7b377 <[videodev].text.start+317/7ef> <===== >>ecx; c26a6a78 <_end+230befc/47a24e4> >>edx; c4b7b360 <[videodev].text.start+300/7ef> >>ebp; c1685f94 <_end+12eb418/47a24e4> >>esp; c1685f7c <_end+12eb400/47a24e4> Trace; c01400c9 <sys_ioctl+179/1a0> Trace; c0108bb3 <system_call+33/40> 297 warnings and 8 errors issued. Results may not be reliable. (I have a lot of warnings like: Error (pclose_local): read_nm_symbols pclose failed 0xb Warning (read_object): no symbols in /lib/modules/2.4.21/kernel/drivers/usb/pwc.o Error (pclose_local): read_nm_symbols pclose failed 0xb Warning (read_object): no symbols in /lib/modules/2.4.21/kernel/drivers/media/video/videodev.o Error (pclose_local): read_nm_symbols pclose failed 0xb ) I tried to compile with kernel debugging turned on, did not help. Thanks again Detlef ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "Detlef Schmicker (Siebertz Electronic GmbH)" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Tuesday, June 24, 2003 2:08 PM Subject: Re: [linux-usb-devel] kernel NULL pointer at unpluging pwc webcam > > Does anybody know this problem, what additional information do you need, how > > can I debug. > > Please run the oops through ksymoops and tell us the kernel version. > > Regards > Oliver > > ------------------------------------------------------- This SF.Net email is sponsored by: INetU Attention Web Developers & Consultants: Become An INetU Hosting Partner. Refer Dedicated Servers. We Manage Them. You Get 10% Monthly Commission! INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
