Kernal Panic Problem..

[jarednt1]

I'm trying to troubleshoot a Kernel Panic. It doesn't happen after a set series of events so it is hard for me to replicate. I have performed the Apple Hardware Test and have repeated it 5 times with no errors or faults found. I'm hoping maybe someone can help me decipher the panic log.

# BEGIN LOG* panic.log:

Description: Panic (system crashes) log
Size: 23.29 KB
Last Modified: 8/19/05 11:09 PM
Location: /Library/Logs/panic.log
Recent Contents: ...
0x00292D10 0x00292EE4 0x002A7A94 0x000ABCB0 0x016EDFC0
Kernel loadable modules in backtrace (with dependencies):
com.apple.nke.ppp(1.4)@0x20ce7000
Exception state (sv=0x20E88780)
PC=0x9001FD20; MSR=0x0000F030; DAR=0xE02FE000; DSISR=0x42000000; LR=0x00002EC4; R1=0xBFFFFAD0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.2.0: Fri Jun 24 17:46:54 PDT 2005; root:xnu-792.2.4.obj~3/RELEASE_PPC
# ********

Thu Aug 18 08:27:50 2005

Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x000000001D8A7005 PC=0x0000000021035890
Latest crash info for cpu 0:
Exception state (sv=0x213F6000)
PC=0x21035890; MSR=0x00009030; DAR=0x1D8A7005; DSISR=0x40000000; LR=0x2103588C; R1=0x0CF5B9A0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x210359E8 0x210351A8 0x0011C644 0x00154398 0x001415F0 0x0028DB08
0x00292D10 0x00292EE4 0x002A7A94 0x000ABCB0 0x00000000
Kernel loadable modules in backtrace (with dependencies):
com.apple.nke.ppp(1.4)@0x21031000
Proceeding back via exception chain:
Exception state (sv=0x213F6000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x20CC7780)
PC=0x9001FD20; MSR=0x0000F030; DAR=0xE01F7000; DSISR=0x42000000; LR=0x00002EC4; R1=0xBFFFFAD0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.2.0: Fri Jun 24 17:46:54 PDT 2005; root:xnu-792.2.4.obj~3/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x00095544 0x00095A5C 0x0002683C 0x000A819C 0x000ABB00
Proceeding back via exception chain:
Exception state (sv=0x213F6000)
PC=0x21035890; MSR=0x00009030; DAR=0x1D8A7005; DSISR=0x40000000; LR=0x2103588C; R1=0x0CF5B9A0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x210359E8 0x210351A8 0x0011C644 0x00154398 0x001415F0 0x0028DB08
0x00292D10 0x00292EE4 0x002A7A94 0x000ABCB0 0x00000000
Kernel loadable modules in backtrace (with dependencies):
com.apple.nke.ppp(1.4)@0x21031000
Exception state (sv=0x20CC7780)
PC=0x9001FD20; MSR=0x0000F030; DAR=0xE01F7000; DSISR=0x42000000; LR=0x00002EC4; R1=0xBFFFFAD0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.2.0: Fri Jun 24 17:46:54 PDT 2005; root:xnu-792.2.4.obj~3/RELEASE_PPC

 

[caveman_uk]

Do you use dial-up internet?

I was wondering about the com.apple.nke.ppp

Having googled for it it seems a common cause of kernel panics. I guess it could also come up if you use xDSL broadband....

 

[robbieduncan]

The problem seems to be in a loadable device driver: com.apple.nke.ppp. This is (I think) a driver for the modem. Are you trying to connect over a dial-up connection? If you are not and disable the modem in the networking preferences does this go away?

 

[jarednt1]

Yes its via dialup.

 

[caveman_uk]

Not sure there's much you can do apart from leave feedback at Apple. It's a bug in Apple's PPP driver and it's up to them to fix it. Sucks, but there's not much else you can do but cross your fingers 🙁

It's mentioned in quite afew places if you google for com.apple.nke.ppp.

The reason it doesn't come up on the hardware test is that it isn't a hardware fault.