[highfalutintodd]

I inherited a TiBook 800 (1GB RAM, 60GB hard drive, OS X 10.2.4) from my boss as a replacement for my extraordinarily reliable but aging TiBook 400. Unfortunately, this new machine is giving me a shocking amount of trouble. I've experienced freezes, disk corruption (thank you DiskWarrior sneak peek for fixing that one...), and frequent kernel panics. I've looked at the panic.log file, but the backtraces contained within don't mean anything to me. Any chance I could get someone out there to translate for me?


Fri Jan 24 22:54:23 2003

Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x00000000 PC=0x000631c4
Latest crash info for cpu 0:
Exception state (sv=0x26B2BC80)
PC=0x000631C4; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x000749F8; R1=0x1636B400; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00000000 0x000749F8 0x000AEA28 0x000AE258 0x001B8AA8 0x000BE02C 0x001D9FD0 0x0020E8CC
0x00092830 0xFF601B1E
Proceeding back via exception chain:
Exception state (sv=0x26B2BC80)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x26B1FA00)
PC=0x90006D2C; MSR=0x0000F030; DAR=0x0008C930; DSISR=0x0A000000; LR=0x00013678; R1=0xBFFFEAB0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.3:
Sat Dec 14 03:11:25 PST 2002; root:xnu/xnu-344.23.obj~4/RELEASE_PPC


panic(cpu 0): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x000856CC 0x00085AFC 0x000287A8 0x0008F588 0x00092698
Proceeding back via exception chain:
Exception state (sv=0x26B2BC80)
PC=0x000631C4; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x000749F8; R1=0x1636B400; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00000000 0x000749F8 0x000AEA28 0x000AE258 0x001B8AA8 0x000BE02C 0x001D9FD0 0x0020E8CC
0x00092830 0xFF601B1E
Exception state (sv=0x26B1FA00)
PC=0x90006D2C; MSR=0x0000F030; DAR=0x0008C930; DSISR=0x0A000000; LR=0x00013678; R1=0xBFFFEAB0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.3:
Sat Dec 14 03:11:25 PST 2002; root:xnu/xnu-344.23.obj~4/RELEASE_PPC



*********

Sat Jan 25 12:56:06 2003




Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x00000000 PC=0x000631c4
Latest crash info for cpu 0:
Exception state (sv=0x26B2BC80)
PC=0x000631C4; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x000749F8; R1=0x1636B400; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00000000 0x000749F8 0x000AEA28 0x000AE258 0x001B8AA8 0x000BE02C 0x001D9FD0 0x0020E8CC
0x00092830 0xFF601B1E
Proceeding back via exception chain:
Exception state (sv=0x26B2BC80)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x26B1FA00)
PC=0x90006D2C; MSR=0x0000F030; DAR=0x0008C930; DSISR=0x0A000000; LR=0x00013678; R1=0xBFFFEAB0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.3:
Sat Dec 14 03:11:25 PST 2002; root:xnu/xnu-344.23.obj~4/RELEASE_PPC


panic(cpu 0): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x000856CC 0x00085AFC 0x000287A8 0x0008F588 0x00092698
Proceeding back via exception chain:
Exception state (sv=0x26B2BC80)
PC=0x000631C4; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x000749F8; R1=0x1636B400; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00000000 0x000749F8 0x000AEA28 0x000AE258 0x001B8AA8 0x000BE02C 0x001D9FD0 0x0020E8CC
0x00092830 0xFF601B1E
Exception state (sv=0x26B1FA00)
PC=0x90006D2C; MSR=0x0000F030; DAR=0x0008C930; DSISR=0x0A000000; LR=0x00013678; R1=0xBFFFEAB0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.3:
Sat Dec 14 03:11:25 PST 2002; root:xnu/xnu-344.23.obj~4/RELEASE_PPC



*********

Sun Feb 16 16:41:46 2003




Unresolved kernel trap(cpu 0): 0x400 - Inst access DAR=0x00b14fbc PC=0x00000000
Latest crash info for cpu 0:
Exception state (sv=0x25D25A00)
PC=0x00000000; MSR=0x40009030; DAR=0x00B14FBC; DSISR=0x40000000; LR=0x00000000; R1=0x161C3DE0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x00000000 0x0002576C 0x000257FC 0x00092A38 0x00090009
Proceeding back via exception chain:
Exception state (sv=0x25D25A00)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x1D9A0280)
PC=0x90073C48; MSR=0x0200F030; DAR=0x00B14FBC; DSISR=0x40000000; LR=0x90005F90; R1=0xBFFFB170; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.3:
Sat Dec 14 03:11:25 PST 2002; root:xnu/xnu-344.23.obj~4/RELEASE_PPC


panic(cpu 0): 0x400 - Inst access
Latest stack backtrace for cpu 0:
Backtrace:
0x000856CC 0x00085AFC 0x000287A8 0x0008F588 0x00092698
Proceeding back via exception chain:
Exception state (sv=0x25D25A00)
PC=0x00000000; MSR=0x40009030; DAR=0x00B14FBC; DSISR=0x40000000; LR=0x00000000; R1=0x161C3DE0; XCP=0x00000010 (0x400 - Inst access)
Backtrace:
0x00000000 0x0002576C 0x000257FC 0x00092A38 0x00090009
Exception state (sv=0x1D9A0280)
PC=0x90073C48; MSR=0x0200F030; DAR=0x00B14FBC; DSISR=0x40000000; LR=0x90005F90; R1=0xBFFFB170; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 6.3:
Sat Dec 14 03:11:25 PST 2002; root:xnu/xnu-344.23.obj~4/RELEASE_PPC

*********

Thanks in advance for your help!

[alien]

Could be a memory problem, but I don't have a clue really. Perhaps you should remove one of the RAM chips and see if the panics remain?

Are there any USB devices connected?

[OreoCookie]

Sounds like a memory problem. Replace your RAM with RAM from a PowerBook (or PC notebook) that is known to work and check out whether or not you still get kernel panics.

[Angus_D]

I doubt it's to do with USB as there are no kexts in the backtrace. RAM is probably the most likely culprit.