Kernel Error prevents full boot?

br1ansk

Registered
I have a new (to me) 12" that isn't booting. I have tried to boot from 2 different boot disks and everything local to the powerbook ends up at a black screen with the pointer in the upper left corner. A second pointer will move around the screen with the trackpad.

It will boot in T mode and I have formatted, partitioned and reinstalled 10.5 from my tower. The tower will even reboot with the drive from the powerbook and function normally. This suggests to me that the drive and the OS install is fine.

I also know the disk drive is fine since one of the OS installs I have tried actually loaded off the drive of the PB (install disk shows up on the tower's desktop with the PB's HD as a firewire).

After letting the black screen sit for a while I get this:System Failure: cpu=0; code=00000001 (Corrupt stack)
Latest crash info for cpu 0:
Exception state (sv=0x13522000)
PC=0x000B2370; MSR=0x00001030; DAR=0x1EC7BFD0; DSISR=0x42000000; LR=0x00A85e7C; R1=0x1EC7C010; XCP=0x0000000C (0x300 – Data access)

Then it goes through a series of backtraces…

Then more backtraces then:

BSD process name corresponding to current thread: kernel_task
Mac OS version 9A581

Kernel version:
Darwin Kerned Version 9.0.0: ….

Then it seems to repeat the first system failure message.

I have also tried resetting the PRam (shift+ctrl+option+power) with no change in results. Thanks for any suggestions...
-Brian
 
Run Apple Hardrware Test on this Mac. It's on the install disc 1 or 2 that came originally with this Mac.
When booting, set to looped mode (control-L) and run extended test at least for a few hours.
 
Thanks but one of the symptoms is that it will simply not boot to any cd/dvd. I know the drive is good because I was able to reload the operating system from that local drive. The only utilities I can run from the tower test the hard drive and it is fine.
-Brian
 
Reset the PRAM, then try with the install disc holding alt (on ppc) or d (on intel) and try to load to AHT. As AHT will load BEFORE loading any OS, it should bypass it...

If that fails, then
System Failure: cpu=0; code=00000001 (Corrupt stack)
Latest crash info for cpu 0: ...
it could simply be your cpu0. I hope it won't be though..
 
Cool trick! At least I got to a new screen I haven't ever seen. It had a return and an arrow icon (I think). When I hit return, I got this:
Invalid memory access at %SRR0: ff846360 %SRR1: 00003030

Bad memory or worse?
-Brian
 
I've just got the 256+256. What do the arrows mean at that screen? One kind of looks like 'return' and one kind of looks like 'tab'. I'm trying to get it to go with the 256 chip out now.
-Brian
 
When booted with alt, it lists all available systems, arrow suggesting where to go.
You won't be able to boot to 10.5 with only 256 MB.
 
OK - There isn't a system currently loaded (wiped in one of the other attempts). I'll reload that and try again. Thanks :)
-Brian
 
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