module segfault problem ADM5120

DISCUSSION Tom Vrána 2 participants 2 messages Feb 15, 2005 – Feb 16, 2005 MIPS

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Tom Vrána

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2005-02-15 23:49 UTC #0 lore raw

Hello,

I am currently experiencing trouble trying to load the madwifi drivers on my MIPS (ADM5120), everytime I end up with the Oops pasted below. Does that provide anyone a clue what may be wrong ? I've tried changing the modules around, but this is what I get...

Thanks, Tom

Unable to handle kernel paging request at virtual address 00000000, epc == 800fb6fc, ra == 80013fa8

Oops in fault.c:do_page_fault, line 205:
$0 : 00000000 10008400 1003a050 fffffff2 00000000 1003a000 0000000a 7fff5bb0 $8 : ffffffff 80a46000 80014180 00000010 00000034 00000000 00000100 00000018 $16: c0000edc 00000050 1003a050 1003a000 7fff5bb0 000003b0 00000000 c0000000
$24: 00000000 004884f0 80184000 80185ec8 100059cc 80013fa8
Hi : 00000000
Lo : 00000001
epc : 800fb6fc Not tainted
<4>Status: 10008403
<4>Cause : 10800008
Status: 10008403
<4>Cause : 10800008
Cause : 10800008
Process insmod (pid: 33, stackpage=80184000)

Stack: 100059cc 800307f4 801ef440 00000000 ffffffea c0000000 80a46000 1003a000
<4>             00000400 00000004 7fff5bb0 00000001 8001431c 8002382c 00000000 802592e0
<4>             00013a00 00000000 1003a000 00000004 1001fc00 1001efe0 00000001 00000000
<4>             7fff5bb0 80008ec4 10005a0c 100059dc 100059ec 10005ffc 7fff5bb0 00000000
<4>             00000000 10018a04 0000105b 00000400 1001fc00 00000004 1003a000 00000400
<4>             00000021 ...

<4>Call Trace:Call Trace: [<800307f4>] [<c0000000>] [<8001431c>] [<8002382c>] [<80008ec4>] Warning (Oops_read): Code line not seen, dumping what data is available

Quoted 16 lines

Quoted 16 lines
RA; 80013fa8 <qm_symbols+11c/228>
$1; 10008400 <_binary_ramdisk_gz_size+ff579b6/7ff515b6> $2; 1003a050 <_binary_ramdisk_gz_size+ff89606/7ff515b6> $5; 1003a000 <_binary_ramdisk_gz_size+ff895b6/7ff515b6> $7; 7fff5bb0 <_binary_ramdisk_gz_size+7ff45166/7ff515b6> $10; 80014180 <sys_query_module+0/1f8>
$18; 1003a050 <_binary_ramdisk_gz_size+ff89606/7ff515b6> $19; 1003a000 <_binary_ramdisk_gz_size+ff895b6/7ff515b6> $20; 7fff5bb0 <_binary_ramdisk_gz_size+7ff45166/7ff515b6> $25; 004884f0 <_binary_ramdisk_gz_size+3d7aa6/7ff515b6> $28; 80184000 <_binary_ramdisk_gz_start+45000/b0a4a> $29; 80185ec8 <_binary_ramdisk_gz_start+46ec8/b0a4a> $30; 100059cc <_binary_ramdisk_gz_size+ff54f82/7ff515b6> $31; 80013fa8 <qm_symbols+11c/228>
PC; 800fb6fc <strlen+0/24> <=====

Signature · 5 lines

Tomas Vrana  <[email protected]>
--------------------------
VODA IT consulting, Borkovany 48, 691 75
http://www.voda.cz/
phone: +420 519 419 416 mobile: +420 603 469 305 UIN: 105142752

Jeroen Vreeken

2005-02-16 00:20 UTC #1 lore raw

Quoted 7 lines · Tom Vrána

Hello,
I am currently experiencing trouble trying to load the madwifi drivers on my MIPS (ADM5120), everytime I end up with the Oops pasted below. Does that provide anyone a clue what may be wrong ? I've tried changing the modules around, but this is what I get...
Thanks, Tom
Unable to handle kernel paging request at virtual address 00000000, epc == 800fb6fc, ra == 

Something seems to be trying to access memory location 00000000. Maybe there is some NULL check missing in the driver init code?

Jeroen