Frequent kernel panics in 10.2 on PBG4 400 - any thoughts ?

[widget]

Just installed Jaguar on a Powerbook G4 400mhz with 256mb ram. Suffering shed loads of kernel panics in iTunes 3. Also had a couple in IE5.2 and even one in TextEdit (yes I know !). No third party RAM or disk - just the vanilla Apple spec as it came out of the box. Now on my third install and same problems are happening.

Would really appreciate some help. Here's the mess it leaves behind for those of you who speak panic log :

Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x76300104 PC=0x00042888
Latest crash info for cpu 0:
Exception state (sv=0x0E08D280)
PC=0x00042888; MSR=0x00009030; DAR=0x76300104; DSISR=0x40000000; LR=0x00042870; R1=0x079DBA00; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00042870 0x0002D96C 0x00253F2C 0x002540D4 0x00252308 0x00250AB8 0x00250008 0x0024C810
0x125F916C 0x00239A8C 0x0007D39C 0x0002AE70 0x000257E4 0x00025BE0 0x00092A38 0x3C2F7374
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.ApplePMU(1.5.8)@0x125ef000
Proceeding back via exception chain:
Exception state (sv=0x0E08D280)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x0DE03280)
PC=0x90074328; MSR=0x0000D030; DAR=0x07AAB6C8; DSISR=0x40000000; LR=0x90006670; R1=0xF0080050; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.0:
Sat Jul 27 13:18:52 PDT 2002; root:xnu/xnu-344.obj~1/RELEASE_PPC


panic(cpu 0): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x0008593C 0x00085D6C 0x00028B8C 0x0008F648 0x000926B8
Proceeding back via exception chain:
Exception state (sv=0x0E08D280)
PC=0x00042888; MSR=0x00009030; DAR=0x76300104; DSISR=0x40000000; LR=0x00042870; R1=0x079DBA00; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00042870 0x0002D96C 0x00253F2C 0x002540D4 0x00252308 0x00250AB8 0x00250008 0x0024C810
0x125F916C 0x00239A8C 0x0007D39C 0x0002AE70 0x000257E4 0x00025BE0 0x00092A38 0x3C2F7374
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.ApplePMU(1.5.8)@0x125ef000
Exception state (sv=0x0DE03280)
PC=0x90074328; MSR=0x0000D030; DAR=0x07AAB6C8; DSISR=0x40000000; LR=0x90006670; R1=0xF0080050; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.0:
Sat Jul 27 13:18:52 PDT 2002; root:xnu/xnu-344.obj~1/RELEASE_PPC

[egilDOTnet]

Looks like the Apple PMU driver is causing you these troubles. Have you any equipment connected to your machine through FW/USB? Try to disconnect them for a while to see if that helps, especially speakers or the likes.

Also, what kind of upgrade to 10.2 did you do? I recommend doing a backup of all your files, then reinstall from scratch with the format option (so make sure your backup is on another media). I have seen several people struggling with 10.2 that scored jackpot after reinstalling with format.

Also, check out the bulletin boards at apples support site.

Regards,


Egil