Kernel Panics, Mac OS X 10.4.11

[klrehe]

I've been having repeated kernel panics for a little over a week now. I've run disk utility, tech tools, the disk utility on the installation disk, rember ram test, installed a virus checker, reinstalled (archive/install) mac os x. I am not receiving any errors in the tests, but I am still having kernel panics. They always happen when I am on the internet, not immediately, but I'd say about 20 minutes or so into a session. I first started having the panics when I clicked on a link from someone's facebook page and a kernel panic immediately popped onto my screen. I've been having them ever since. Can anyone steer me in the right direction as to what the problem is and what I should do?

Thank you,
Heather

Here is the latest one-

May 9-
panic(cpu 0 caller 0x00099ED8): mapping_remove: hw_rem_map failed - pmap = 00368000, va = 000000000000E000, code = 00C70142

Latest stack backtrace for cpu 0:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x00099ED8 0x00098F90 0x00062AC8 0x000A8078 0x000ABB80
Proceeding back via exception chain:
Exception state (sv=0x31F7BA00)
PC=0x000AC860; MSR=0x00009030; DAR=0x0035ECC0; DSISR=0x0A000000; LR=0x002FC010; R1=0x1730BA90; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002FBFE4 0x002FE010 0x002B9F9C 0x002B7CB8 0x2FD66628 0x2FD663C4
0x002C12A0 0x002C1068 0x002C1AD0 0x002C20DC 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBUserClient(2.8.1)@0x2fd65000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x2f940000
Exception state (sv=0x2FD0B000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
Model: PowerMac8,2, BootROM 5.2.5f1, 1 processors, PowerPC G5 (3.1), 2 GHz, 1 GB
Graphics: ATI Radeon 9600, ATY,RV351, AGP, 128 MB
Memory Module: DIMM0/J4000, 512 MB, DDR SDRAM, PC3200U-30330
Memory Module: DIMM1/J4001, 512 MB, DDR SDRAM, PC3200U-30330
AirPort: AirPort Extreme, 405.1 (3.90.34.0.p18)
Modem: Jump, V.92, Version 1.0
Network Service: AirPort, AirPort, en1
Network Service: Built-in Ethernet, Ethernet, en0
Serial ATA Device: ST3160023AS, 149.05 GB
Parallel ATA Device: MATSHITADVD-R UJ-845
USB Device: Hub in Apple Pro Keyboard, Chicony, Up to 12 Mb/sec, 500 mA
USB Device: Apple Pro Keyboard, Chicony, Up to 12 Mb/sec, 250 mA
USB Device: Apple Optical USB Mouse, Logitech, Up to 1.5 Mb/sec, 500 mA

___
Hardware Overview:

Machine Name: iMac G5
Machine Model: PowerMac8,2
CPU Type: PowerPC G5 (3.1)
Number Of CPUs: 1
CPU Speed: 2 GHz
L2 Cache (per CPU): 512 KB
Memory: 1 GB
Bus Speed: 667 MHz
Boot ROM Version: 5.2.5f1
Serial Number: W85340PJSDY

 

[ElDiabloConCaca]

It looks like something on the USB bus is causing the panic, although it could be anything.

First thing to check is the USB devices you have connected to your computer -- any hubs? External hard drives? Cameras? Scanners? Printers?

Try disconnecting all USB peripherals (save for keyboard/mouse) and see if your computer "behaves" any better. If so, it should be a simple process of elimination to find the misbehaving USB device (if a USB device is, indeed, causing the panic).

 

[djackmac]

After doing that what he said check for blown capacitors on the logic board. Those models were wildly popular for blown caps. You just lay the machine down on its face being careful of the screen, loosen 3 screws on the bottom and lift the back cover off. The capacitors are the battery looking things sticking out of the logic board. If any of them have swollen heads with a dried brownish substance oozing out of them, you've got a problem. Of course if you don't feel comfortable doing this take the machine to an authorized Apple shop for them to look at.