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Opened 8 years ago

Closed 7 years ago

Last modified 4 years ago

#6868 closed defect (wontfix)

kernel NULL pointer on ixp4xx on 8.09.2

Reported by: anonymous Owned by: developers
Priority: highest Milestone: Barrier Breaker 14.07
Component: kernel Version: Kamikaze 8.09
Keywords: kernel null pointer ixp4xx Cc:

Description

I'm getting the following null ponter exception when I try to inject frame using a wifi device operating in monitor mode (madwifi driver).

my software (click router) is working fine on a x86 target. morevoer if i try to use the trunk version the system just hangs without printing anything. I've tried both uclib and clib

kernel 2.6.28.6.

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c7024000
[00000000] *pgd=07d63031, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1]
Modules linked in: ath_pci wlan_xauth wlan_wep wlan_tkip wlan_ccmp wlan_acl ath_rate_minstrel ath_hai
CPU: 0    Tainted: P           (2.6.26.3 #1)
pc : [<c002aa4c>]    lr : [<bf1119ec>]    psr: 20000013
sp : c7001ecc  ip : 00000001  fp : c7001ee8
r10: c7eb2748  r9 : c7000000  r8 : c7fb8010
r7 : c7c120c0  r6 : 00000050  r5 : c70398e0  r4 : c7c1444c
r3 : 00000000  r2 : c7039720  r1 : 03c35000  r0 : a0000013
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 000039ff  Table: 07024000  DAC: 00000015
Process click (pid: 2465, stack limit = 0xc7000260)
Stack: (0xc7001ecc to 0xc7002000)
1ec0:                            00000000 80000013 c7eb0360 c7eb0360 c7001f28
1ee0: c7001eec bf1119ec c002a9b4 c00373a0 c0036fc4 c7f4c000 00000000 c7fb8000
1f00: 00000013 00000002 c7eb0360 c7eb2748 00000001 c7000000 4016d000 c7001f50
1f20: c7001f2c bf113d10 bf11167c 00000002 00000000 c020a78c 0000000a 00025190
1f40: 25190000 c7001f64 c7001f54 c0037164 bf113ca0 00000001 c7001f80 c7001f68
1f60: c0037014 c00370f8 0000001c c01fa194 00000000 c7001f90 c7001f84 c00373a0
1f80: c0036fc4 c7001fac c7001f94 c0021048 c0037368 ffffffff 0000001f 10000000
1fa0: 00000000 c7001fb0 c0021840 c002100c 0caf0000 c3500000 00000001 00000000
1fc0: 002bf5ac 002bef58 02d7876a 00025190 25190000 00000003 4016d000 be8dcd4c
1fe0: 002b8254 be8dc8dc 00129a2c 40106d0c 60000010 ffffffff 00000000 00000000
Backtrace:
Function entered at [<c002a9a8>] from [<bf1119ec>]
 r7:c7eb0360 r6:c7eb0360 r5:80000013 r4:00000000
Function entered at [<bf111670>] from [<bf113d10>]
Function entered at [<bf113c94>] from [<c0037164>]
 r8:25190000 r7:00025190 r6:0000000a r5:c020a78c r4:00000000
Function entered at [<c00370ec>] from [<c0037014>]
 r4:00000001
Function entered at [<c0036fb8>] from [<c00373a0>]
 r6:00000000 r5:c01fa194 r4:0000001c
Function entered at [<c003735c>] from [<c0021048>]
Function entered at [<c0021000>] from [<c0021840>]
Exception stack(0xc7001fb0 to 0xc7001ff8)
1fa0:                                     0caf0000 c3500000 00000001 00000000
1fc0: 002bf5ac 002bef58 02d7876a 00025190 25190000 00000003 4016d000 be8dcd4c
1fe0: 002b8254 be8dc8dc 00129a2c 40106d0c 60000010 ffffffff
 r6:10000000 r5:0000001f r4:ffffffff
Code: 0a000029 e595300c e1530006 13a03000 (15833000)
Kernel panic - not syncing: Fatal exception in interrupt 

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Change History (2)

comment:1 Changed 7 years ago by nbd

  • Resolution set to wontfix
  • Status changed from new to closed

madwifi development has stopped, consider switching to ath5k

comment:2 Changed 4 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

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