Kernel Panic - Macbook

[Lheister]

Anyone have any ideas of why I am getting this kernal panic? It seems to occur rather randomly- could possibly be related to itunes but am not sure-

I have run the disk utility and hardware repair on my installation disk and found no errors....?

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Panic (system crashes) log
Size: 2.51 KB
Last Modified: 4/17/06 8:14 AM
Location: /Library/Logs/panic.log
Recent Contents: Fri Apr 14 20:52:55 2006
panic(cpu 0 caller 0x0034FC40): mbuf address out of range 0x21460000
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x25b3bbc4 : 0x128b5e (0x3bbeb8 0x25b3bbe8 0x131bbc 0x0)
0x25b3bc04 : 0x34fc40 (0x3db914 0x21460000 0x25b30010 0x37445300)
0x25b3bc24 : 0x34ffe7 (0x37445300 0x47b1630 0x0 0xde)
0x25b3bc44 : 0x22d2ff (0x37445300 0x1 0x1 0x601000a)
0x25b3be14 : 0x222007 (0x37445300 0x14 0x25b3bf14 0x526b8506)
0x25b3be54 : 0x223a8b (0x37445300 0x14 0x6 0x0)
0x25b3bf64 : 0x211109 (0x37445300 0x37445300 0x42cb5c 0x135798)
0x25b3bfa4 : 0x1f773d (0x46b9e04 0x37445300 0x3745c816 0x1)
0x25b3bfd4 : 0x197a21 (0x0 0x0 0x3fa0d48 0x134aec) Backtrace terminated-invalid frame pointer 0x0

Kernel version:
Darwin Kernel Version 8.6.1: Tue Mar 7 16:55:45 PST 2006; root:xnu-792.9.22.obj~1/RELEASE_I386

[hayne]

You should check the RAM with 'memtest':
http://www.memtestosx.org/

[Lheister]

Yes, I actually did do the memtest as well- no errors there either

[hayne]

Quote: Originally Posted by Lheister Yes, I actually did do the memtest as well- no errors there either

Did you do the long version of the test? The only test that is really worth doing typically takes many hours.

[CAlvarez]

Have you added any memory to the machine? If so, what brand? And have you tried running it without the added memory?

[Lheister]

I have not done the longer test (but will do so) but also had the same error when I removed the 3rd party RAM-

[hayne]

The panic is coming from the function 'm_range_check' in the file xnu-792.6.61/bsd/kern/uipc_mbuf.c (for those who have the Darwin source code).
I think this code is related to memory buffers for interprocess communication.
Not that that helps you much.

[Lheister]

So does that mean that I should uninstall Darwin? And did run the extended memory test and no problems were found....

[tlarkin]

I agree with hayne, this is probably memory related. If problem duplicates with both sticks of ram or even with one removed it could be somewhere in virtual memory, or memory management via the OS.

This is a broad problem, reloading the OS might fix it, you could have defective ram, HD, cache, etc.

I would just start with the basic troubleshooting steps and start a process of elimination.

I would start here if not already posted.

http://forums.macosxhints.com/showth...t=13846&page=7

[hayne]

Quote: Originally Posted by Lheister So does that mean that I should uninstall Darwin?

I don't really know what to suggest other than running through the standard troubleshooting suggestions:
http://www.apple.com/support/mac101/ (see the "My Mac needs help" section)
http://www.macosxhints.com/article.p...04011205473937
http://forums.osxfaq.com/viewtopic.php?t=7269
http://www.thexlab.com/faqs/faqs.html

Of course you should also contact Apple Support.

[trevor]

Please tell us all peripherals that are attached to this MacBook Pro--whether they are always attached or only sometimes attached. Include expansion cards, if any.

Trevor

[Lheister]

O.k- seems like I have isolated it to when I am playing itunes via my airport express-

I have had two days without a panic and then after about 15 minutes- voila- panic-

From what I can tell, I have the most recent firmware update for my airport express but can't tell why this seems to occur?

[tlarkin]

itunes could just be causing a nasty memory leak, have you tried reinstalling itunes itself?

[hayne]

Quote: Originally Posted by tlarkin itunes could just be causing a nasty memory leak, have you tried reinstalling itunes itself?

The problem is far more than a mere memory leak. It is a kernel panic, not the mere usage of memory. I suspect an OS bug. (A mere application should not be able to cause a kernel panic - it must be a problem in one of the kernel-level modules.)

[voldenuit]

Does it panic when you use iTunes with the internal speakers ?

When did the Kernel panics start ?

Do you remember what you updated just before ?
Having a look in /Library/Receipts might help.

[Lheister]

Quote: Originally Posted by voldenuit Does it panic when you use iTunes with the internal speakers ?

No- I ran itunes overnight and no panic- turned on the external speakers and had a panic in ~15-20 minutes

Quote: When did the Kernel panics start ?

not long after I bought the computer but bought the AE at around the same time-

Quote: Do you remember what you updated just before ? Having a look in /Library/Receipts might help.

Have really only mac updates- did an archive and install about three weeks ago- so most of the receipts are from that day-

[bramley]

Just adding a note that in another thread on this particular kind of kernel panic, I've posted that the original starter of that thread has replaced his MBP.

[Lheister]

Just to update-Apple replaced my logic board and things work fine now....

[crearley]

I'm having the same panic w/ a mac mini 1.66 duo. Is it a logicboard problem also?