Kernal Panics

[bigboy99]

Two crashes in the last 12 hours.

Here's the log. I don't understand this stuff, but if anyone has any comments that might help me solve the mystery I would appreciate it very much.

I reseated the ram chips after crash #2

Thanks in advance.

BB

Thu Dec 20 02:49:46 2007

#1

Unresolved kernel trap(cpu 0): 0x400 - Inst access DAR=0x00000000E00FD000 PC=0x0000000000000000
Latest crash info for cpu 0:
Exception state (sv=0x4502CA00)
PC=0x00000000; MSR=0x40009030; DAR=0xE00FD000; DSISR=0x40000000; LR=0x002C949C; R1=0x2CF23DC0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Proceeding back via exception chain:
Exception state (sv=0x4502CA00)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x45249A00)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0004): 0x400 - Inst access
Latest stack backtrace for cpu 0:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
Proceeding back via exception chain:
Exception state (sv=0x4502CA00)
PC=0x00000000; MSR=0x40009030; DAR=0xE00FD000; DSISR=0x40000000; LR=0x002C949C; R1=0x2CF23DC0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Exception state (sv=0x45249A00)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC

*********

Thu Dec 20 13:42:29 2007

#2


Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000014 PC=0x00000000002C9490
Latest crash info for cpu 0:
Exception state (sv=0x476F8000)
PC=0x002C9490; MSR=0x00009030; DAR=0x00000014; DSISR=0x40000000; LR=0x0003CA1C; R1=0x2C81BDC0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Proceeding back via exception chain:
Exception state (sv=0x476F8000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x426A5500)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
Proceeding back via exception chain:
Exception state (sv=0x476F8000)
PC=0x002C9490; MSR=0x00009030; DAR=0x00000014; DSISR=0x40000000; LR=0x0003CA1C; R1=0x2C81BDC0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Exception state (sv=0x426A5500)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC

*********

 

[mad jew]

I think it looks like the RAM too. Has it panicked after you reseated the chip(s)?

 

[bigboy99]

Yes, see below.

Fri Dec 21 08:38:01 2007


Unresolved kernel trap(cpu 0): 0x400 - Inst access DAR=0x000000000D803522 PC=0x0000000000000004
Latest crash info for cpu 0:
Exception state (sv=0x505FA780)
PC=0x00000004; MSR=0x40009030; DAR=0x0D803522; DSISR=0x40000000; LR=0x002C949C; R1=0x2C933DC0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Proceeding back via exception chain:
Exception state (sv=0x505FA780)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x4348A280)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0004): 0x400 - Inst access
Latest stack backtrace for cpu 0:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
Proceeding back via exception chain:
Exception state (sv=0x505FA780)
PC=0x00000004; MSR=0x40009030; DAR=0x0D803522; DSISR=0x40000000; LR=0x002C949C; R1=0x2C933DC0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Exception state (sv=0x4348A280)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC

 

[mad jew]

If possible, try swapping out the RAM chips to see if one of them is faulty.

 

[bigboy99]

No OS crashes in 48 hours. I ran Memtest and the ram checked out okay. Could an app be causing this? Firefox crashes most frequently.

 

[mad jew]

It's rare for an app to cause a kernel panic, but it could be a driver... It's usually hardware though, and remember that a pass on the Apple Hardware Test doesn't necessarily mean the components are all okay. It simply means the tests didn't find anything wrong.

 

[SavageMac]

There is no such thing as a kernal panic with Macs, because Macs Just Work.

 

[mad jew]

Denial is the best remedy.

 

[SavageMac]

you're just Mad because Macs are assembeled in palestine now

 

[mad jew]

As long as they still just work, right?

 

[SavageMac]

i guess sarcasm is hard to detect. especially with the fact apple fanboys really do believe, say, and breath those very words......jeeze

 

[mad jew]

Mate, I wasn't being serious!

 

[bigboy99]

I used a third party app - Memtest. Run in the single user mode, it was able to test 1924 out of 2GB. No issues. The HD is new from Apple. Two firewire external HDs and a USB printer are attached.

Just crashed again this AM. What other hardware could be at the source of these incidents. They're fairly random.


Mon Dec 24 07:29:10 2007


Unresolved kernel trap(cpu 0): 0x400 - Inst access DAR=0x000000000AB1BC02 PC=0x0000000000000000
Latest crash info for cpu 0:
Exception state (sv=0x42B5AA00)
PC=0x00000000; MSR=0x40009030; DAR=0x0AB1BC02; DSISR=0x40000000; LR=0x002C949C; R1=0x2C893DC0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Proceeding back via exception chain:
Exception state (sv=0x42B5AA00)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x5035BA00)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0004): 0x400 - Inst access
Latest stack backtrace for cpu 0:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
Proceeding back via exception chain:
Exception state (sv=0x42B5AA00)
PC=0x00000000; MSR=0x40009030; DAR=0x0AB1BC02; DSISR=0x40000000; LR=0x002C949C; R1=0x2C893DC0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x002C9438 0x0003CA1C 0x000A9714
Exception state (sv=0x5035BA00)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

 

[mad jew]

Software based tests aren't fantastic at finding faults. Try swapping the RAM sticks out physically and see if it still crashes.

 

[bigboy99]

Are you saying pull 1GB and wait (?), if no KP, then swap and wait again?

 

[mad jew]

Pretty much. What's your RAM configuration at the moment?

 

[bigboy99]

2 x 1GB

 

[mad jew]

So, any luck with swapping the RAM and running on one chip at a time?

 

[bigboy99]

Holiday interupus.

 

[mad jew]

Are you drunk?

 

[bigboy99]

Not yet. It's your shout, right?

 

[mad jew]

Okay.

Now, how's it going running on one chip? Any problems so far?

 

[bigboy99]

Good choice! I'm traveling for the Holidays, and the tools are at home. I'll try your suggestion when I return.

 

[bigboy99]

No KPs since 12/24, so I'm going to sit tight. Thanks for the input.

 

[mad jew]

Good work mate.