Results 1 to 2 of 2
  1. #1


    Member Since
    Oct 07, 2009
    Location
    California
    Posts
    1
    Mysterious kernel panic
    Hello all,

    I am working on a customers Powerbook G4 which has been shutting down. After a great deal of research and testing I have hit a wall as to what steps to take in determining the cause of this problem. I have tested the RAM with memtest, ran permissions repair, and run stress tests.

    When I received the computer on Monday the very first thing that I noticed was the date and time were off by 30 years. I have corrected that and have not seen a switch back, so I am assuming the Bios battery is in functioning conditions. Since I have had the computer it has kernel panicked once, and I will be attaching that log. The customer threw away her installation disc, so I am unable to do a proper HDD check to see if there are bad sectors. However, the fact that I have been running a stress test over night with no freezing or crashing tells me that the HDD is functioning. (The stress test was having the computer playing Chess against itself at the highest difficulty. This causes a high load on the system due to the complex mathematical algorithms)

    She need her computer back (or declared dead) by Sunday. Any help that you folks could give me would be greatly appreciated. Thank you in advance!

    PANIC LOG

    Tue Oct 6 11:33:13 2009


    Unresolved kernel trap(cpu 0): 0x700 - Program DAR=0x00000000E0101E30 PC=0x0000000000036BD4
    Latest crash info for cpu 0:
    Exception state (sv=0x00A3C000)
    PC=0x00036BD4; MSR=0x00089030; DAR=0xE0101E30; DSISR=0x0A000000; LR=0x000ABBAC; R1=0x173DBF30; XCP=0x0000001C (0x700 - Program)
    Backtrace:
    0x000ABCB8 0x59417467
    Proceeding back via exception chain:
    Exception state (sv=0x00A3C000)
    previously dumped as "Latest" state. skipping...
    Exception state (sv=0x2D520C80)
    PC=0x9002CB48; MSR=0x0000D030; DAR=0xE0101E30; DSISR=0x0A000000; LR=0x90001C80; R1=0xF0305D90; XCP=0x00000030 (0xC00 - System call)

    Kernel version:
    Darwin Kernel Version 8.0.0: Sat Mar 26 14:15:22 PST 2005; root:xnu-792.obj~1/RELEASE_PPC
    panic(cpu 0 caller 0xFFFF0007): 0x700 - Program
    Latest stack backtrace for cpu 0:
    Backtrace:
    0x00095564 0x00095A7C 0x00026838 0x000A8184 0x000AB880
    Proceeding back via exception chain:
    Exception state (sv=0x00A3C000)
    PC=0x00036BD4; MSR=0x00089030; DAR=0xE0101E30; DSISR=0x0A000000; LR=0x000ABBAC; R1=0x173DBF30; XCP=0x0000001C (0x700 - Program)
    Backtrace:
    0x000ABCB8 0x59417467
    Exception state (sv=0x2D520C80)
    PC=0x9002CB48; MSR=0x0000D030; DAR=0xE0101E30; DSISR=0x0A000000; LR=0x90001C80; R1=0xF0305D90; XCP=0x00000030 (0xC00 - System call)

    Kernel version:
    Darwin Kernel Version 8.0.0: Sat Mar 26 14:15:22 PST 2005; root:xnu-792.obj~1/RELEASE_PPC#
    *********

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    50,257
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    For one thing, I would change the PRAM battery. Pretty good indication of a weak or non functioning PRAM battery is the date being incorrect. If the machine is shutting down unexpectedly, it could be due to an overheat problem or power supply problem. Although you would think either should show up in any kind of stress test.

    Make sure the fans are functioning and none of the exhaust ports are blocked with dust or dirt. As for the power supply, it could be intermittent.

    Regards.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. In a Panic Over Kernel Panic
    By Imogine in forum OS X - Operating System
    Replies: 1
    Last Post: 02-28-2014, 06:25 AM
  2. my first Kernel Panic
    By JTL1 in forum OS X - Operating System
    Replies: 9
    Last Post: 10-10-2012, 05:54 PM
  3. Kernel Panic?
    By kial in forum OS X - Operating System
    Replies: 3
    Last Post: 02-20-2008, 02:21 AM
  4. HELP! Kernel Panic!
    By elise87 in forum Apple Notebooks
    Replies: 3
    Last Post: 12-22-2007, 08:19 PM
  5. Kernel Panic
    By jrichard012 in forum Switcher Hangout
    Replies: 2
    Last Post: 12-12-2007, 12:10 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •