Can somebody help me with interpreting kernel panic, please?

Discussion in 'PowerPC Macs' started by putinga, Feb 25, 2012.

  1. putinga macrumors newbie

    Joined:
    Jan 22, 2008
    #1
    Hello folks,

    Recently, my G4 1.67 started experiencing kernel panics. It started from ordinary bad ram symptoms - 2 or chims on startup... everything was backing to normal after resitting the modules (for up to five days)

    I have tried clean system reinstalling (with zeroing) and everything from 'resolving kernel panic' document....

    now, can someone savvy look at this:

    Sat Feb 25 03:53:18 2012


    Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x000000003C377FB6 PC=0x00000000005709E0
    Latest crash info for cpu 0:
    Exception state (sv=0x42A08780)
    PC=0x005709E0; MSR=0x0000B030; DAR=0x3C377FB6; DSISR=0x42000000; LR=0x005709A8; R1=0x2C7CBC70; XCP=0x0000000C (0x300 - Data access)
    Backtrace:
    0x005708FC 0x0057170C 0x00571528 0x005712FC 0x0056AA34 0x0056A824
    0x002ECE20 0x000AC0AC 0xFFF9E6F9
    Kernel loadable modules in backtrace (with dependencies):
    com.apple.iokit.IOAudioFamily(1.5.5b2)@0x55c000
    dependency: com.apple.iokit.IOUSBFamily(2.5.6)@0x43c000
    Proceeding back via exception chain:
    Exception state (sv=0x42A08780)
    previously dumped as "Latest" state. skipping...
    Exception state (sv=0x42F6DA00)
    PC=0x90AED0F8; MSR=0x0200F030; DAR=0xEFFFFCA0; DSISR=0x40000000; LR=0x91463D6C; R1=0xF0305980; XCP=0x00000030 (0xC00 - System call)

    Kernel version:
    Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC
    panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
    Latest stack backtrace for cpu 0:
    Backtrace:
    0x00095718 0x00095C30 0x0002683C 0x000A8404 0x000ABD80
    Proceeding back via exception chain:
    Exception state (sv=0x42A08780)
    PC=0x005709E0; MSR=0x0000B030; DAR=0x3C377FB6; DSISR=0x42000000; LR=0x005709A8; R1=0x2C7CBC70; XCP=0x0000000C (0x300 - Data access)
    Backtrace:
    0x005708FC 0x0057170C 0x00571528 0x005712FC 0x0056AA34 0x0056A824
    0x002ECE20 0x000AC0AC 0xFFF9E6F9
    Kernel loadable modules in backtrace (with dependencies):
    com.apple.iokit.IOAudioFamily(1.5.5b2)@0x55c000
    dependency: com.apple.iokit.IOUSBFamily(2.5.6)@0x43c000
    Exception state (sv=0x42F6DA00)
    PC=0x90AED0F8; MSR=0x0200F030; DAR=0xEFFFFCA0; DSISR=0x40000000; LR=0x91463D6C; R1=0xF0305980; XCP=0x00000030 (0xC00 - System call)

    Kernel version:
    Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

    *********

    Sorry for the grammar, guys. I am just waked up and it is not my first language ;)
     
  2. skinniezinho macrumors 6502a

    Joined:
    Jan 1, 2009
    Location:
    Portugal
    #2
  3. putinga thread starter macrumors newbie

    Joined:
    Jan 22, 2008
    #3
    hi skinniezinho,

    i have used AHT and it says either, that two slots and two chips are running smoothly, or one RAM chip is missing. I will run it once again and share the results.

    Anyway, thanks for your reply, skinniezinho.

    Regards,
    p.
     
  4. skinniezinho macrumors 6502a

    Joined:
    Jan 1, 2009
    Location:
    Portugal
    #4
    Well try running your computer for some time with only one slot, then the other...
    To find out if you have some bad ram.
    For example I had 4 dimms, everything went fine but sometimes I had kernel panics, turns out that it was one stick.with that stick only the computer wouldn't even boot!with 4 it was ok for lot's of time..
     

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