Narendra G.H. - 2002-08-28

Hi,

I have one problem with my WLAN driver in target board.  It crashes after working  fine initially.

If I start a ping session of packet size 1400 or more, driver works fine for around 200 packets and then it crashes . I didn`t faced this problem when I tested in Laptop.

Here is the oops message :
Machine check in kernel mode.
Caused by (from SRR1=9032): Unknown values in msr
Oops: machine check, sig: 7
NIP: C56784CC XER: C000197F LR: C567849C SP: C0129E20 REGS: c0129d70 TRAP: 0200
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c0128010[0] 'swapper' Last syscall: 120
last math 00000000 last altivec 00000000
GPR00: 00000498 C0129E20 C0128010 00000000 8000001C 000002C1 00000000 C3CA8800
GPR08: 80000036 00000100 00000498 00003637 35F33F93 1001B8DC FF76FFDF BFBBFE7F
GPR16: FFFFFDFF BFFFFFFF FFEFFFFF FFFFFEFF 00001032 00129EF0 00000000 00000036
GPR24: 00000018 00000000 000005D8 C3F87604 C3CA8C98 C3F87400 8000001C 0000001C
Call backtrace:
C567849C C5676A78 C5674D94 C0003904 C0003A30 C0002810 C0003F84
C0003F98 C01367C0 C00021E4
Kernel panic: Aiee, killing interrupt handler

In interrupt handler - not syncing
Rebooting in 180 seconds..

When I followed Call Backtrace I found that the function addresses are not at all related to data transfer path.

what could be the problem??…Pls help!!…

Do Machine check error occurs when there is an attempt to access Null pointer???.

Thanks in Advance,
Naren