Updated to 10.4.5 and now keep getting Kernel Panics

Question

I keep getting a kernel panic at start up, or shortly after reaching the desktop. I have tried both repairing permissions and repairing the start up disk using Apple's Disk Utility. Ran Disk Warrior, and Techtool Pro 4.1.1, all to no avail. No matter what I do I can't seem to rid my hard drive of the kernel panic.
The Kernel Panics started after I installed the OS 10.4.5 PPC Update and the iTunes 6.0.3 update. Prior to installing the updates my machine ran flawlessly with all of the below hardware.
This is a copy of the Panic log:
Sat Feb 18 10:42:18 2006
panic(cpu 0 caller 0x00294090): sbflush sb->sb_so already null sb=260dafc
Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x00294090 0x00293684 0x002935AC 0x00292EBC 0x00159A78
0x0014F7B8 0x001504A8 0x0013B09C 0x0013B1B0 0x0011D308 0x000A9894
Proceeding back via exception chain:
Exception state (sv=0x2C02A000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.5.0: Sun Jan 22 10:38:46 PST 2006; root:xnu-792.6.61.obj~1/RELEASE_PPC
Sat Feb 18 13:25:14 2006
panic(cpu 0 caller 0x00294090): sbflush sb->sb_so already null sb=203d6bc
Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x00294090 0x00293684 0x002935AC 0x00292EBC 0x00159A78
0x0014F7B8 0x001504A8 0x0013B09C 0x0013B1B0 0x0011D308 0x000A9894
Proceeding back via exception chain:
Exception state (sv=0x2C02A000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.5.0: Sun Jan 22 10:38:46 PST 2006; root:xnu-792.6.61.obj~1/RELEASE_PPC
Sun Feb 19 01:07:55 2006
panic(cpu 0 caller 0x00294090): sbflush sb->sb_so already null sb=203edec
Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x00294090 0x00293684 0x002935AC 0x00292EBC 0x00159A78
0x0014F7B8 0x001504A8 0x0013B09C 0x0013B1B0 0x0011D308 0x000A9894
Proceeding back via exception chain:
Exception state (sv=0x2C02A000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.5.0: Sun Jan 22 10:38:46 PST 2006; root:xnu-792.6.61.obj~1/RELEASE_PPC
Sun Feb 19 13:41:49 2006
panic(cpu 0 caller 0x00294090): sbflush sb->sb_so already null sb=202c56c
Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x00294090 0x00293684 0x002935AC 0x00292EBC 0x00159A78
0x0014F7B8 0x001504A8 0x0013B09C 0x0013B1B0 0x0011D308 0x000A9894
Proceeding back via exception chain:
Exception state (sv=0x2C02A000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.5.0: Sun Jan 22 10:38:46 PST 2006; root:xnu-792.6.61.obj~1/RELEASE_PPC
My machine is a G3 Blue & White 400Mhz Rev. 1 With a 1.1Ghz Powerlogix G3 750GX Processor.
1GB of RAM
Internal Drives:
An IBM DNES309170 9GB HD w/ OS 8.6
A Seagate ST373453LW w/ OS 9.2.2
A Seagate ST3146707LW W/ OS 10.4.5
Pioneer DVR-105 DVD Superdrive
Iomega Zip-100
My PCI Cards are:
ATI 9200 Mac Edition 128MB Video Card
OrangePC 660 Windows Compatibility Card W/ AMD K6 III 450Mhz Processor
Sonnet Allegro USB 2.0 card
Apple/Adaptec AHA-2940U2B Ultra SCSI LVD Card
External Devices are:
Firewire:
Apple Color OneScanner 600/27 via 2nd Wave SCSI to Firewire adapter
Pioneer DVR-106D in an OWC External Firewire case
USB:
Color StyleWriter2500 via Keyspan USA28x Serial to USB adapter
Apple VideoPhone via Xlr8 Interview 3.0 RCA to USB adapter
Lexar USB Card Reader
Imation SuperDisk Floppy Drive
Original Apple Blue USB Keyboard
Original Apple Blue USB Mouse
SCSI:
Syquest EZ135MB Drive
Any help would be most appreciated.
Thanks,
Ken

Answer 1

All I can tell you from the panic log is that there's a problem either with the video card and/or the video drivers. You might try the following:
Boot from your OS X Installer. Be sure to use the installer for the version of OS X you have installed. After the installer loads select Disk Utility from the Installer menu (or Utilities menu if using Tiger.) After DU loads select your OS X volume from the list on the left, click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now shutdown the computer for a couple of minutes and then restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (3.0.3 for Tiger) and/or TechTool Pro (4.1.1 for Tiger) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
If this doesn't help then visit The XLab FAQs and read the FAQ on kernel panics.