Powerbook still crashing after Leopard install

[elmosmoe]

Hello,

I've already posted once about how my Powerbook G4 1.25Ghz 1.25Gb RAM kept crashing after updating to Leopard. It usually crashes after it's gone to sleep. I try to wake it up, I hear the computer start up and nothing appears on the screen. I have to hold the power button down for ages to get it to restart.

I was advised to do a clean install which I did and it's still doing it. Sometimes it goes days without crashing, sometime it does it 3 times in a day.

Once restarted, it sometime says "Mac OS quit unexpectedly". Here's the error log:

Tue Mar 4 21:04:02 2008
panic(cpu 0 caller 0x002C9DCC): "MCHECK: m_type=9472 m=0x250d4d00"@/SourceCache/xnu/xnu-1228.3.13/bsd/kern/uipc_mbuf.c:2677
Latest stack backtrace for cpu 0:
Backtrace:
0x0009B2F8 0x0009BC9C 0x00029DC4 0x002C9DCC 0x0013EA94 0x0013BE34 0x002CE06C 0x002B5390
0x002B05A8 0x002B08A4 0x00309C3C 0x000B2AC8 0x00000000
Proceeding back via exception chain:
Exception state (sv=0x2e970780)
PC=0x9414D0DC; MSR=0x0200D030; DAR=0x00807A00; DSISR=0x40000000; LR=0x9185E2CC; R1=0xF007FAB0; XCP=0x00000030 (0xC00 - System call)

BSD process name corresponding to current thread: mDNSResponder

Mac OS version:
9C31

Kernel version:
Darwin Kernel Version 9.2.0: Tue Feb 5 16:15:19 PST 2008; root:xnu-1228.3.13~1/RELEASE_PPC
System model name: PowerBook5,2

When it doesn't give me the OSX quite unexpectedly error message, I checked my Console (as advised by someone previously) and there's usually something along the lines of

03/03/2008 21:13:54 com.apple.launchctl.System[2] launchctl: Please convert the following to launchd: /etc/mach_init.d/dashboardadvisoryd.plist
03/03/2008 21:13:54 com.apple.launchd[1] (org.cups.cupsd) Unknown key: SHAuthorizationRight
03/03/2008 21:13:54 com.apple.launchd[1] (org.ntp.ntpd) Unknown key: SHAuthorizationRight
03/03/2008 21:14:29 com.apple.launchd[1] (com.apple.UserEventAgent-LoginWindow[64]) Exited: Terminated

The programme that it mentions changes, sometimes it's Entourage, sometime it's Safari.

I've repaired permissions, verified disks and nothing appears to be wrong.

Help!

Thank you!

[eric2006]

Do you have the original install disks for your system? If so, try running the Apple hardware tests. You should also test your memory - memtest will do this.

[elmosmoe]

Hi there,

Thanks for this. I've just bought memtest. I can't find my original discs, where else can I get the Apple Hardware Test?

Cheers!

[Giaguara]

You can't get the hardware test from elsewhere.
Memtest http://www.memtestosx.org/ - there were probably a few others too but forgot to save the links

[DeltaMac]

Originally Posted by elmosmoe

... I've just bought memtest. ...

What did you buy? memtest is open source software, and a free download.