Panic "Unresolved kernel trap" need help!

I've been troubleshooting looping finder crashes on a G5 PPC Tiger volume, and have been running off my (new-ish) Leopard volume, preparing to transfer all data to the Leopard volume.
However, I got a kernel panic today, and I'm not at all sure what to do..

No idea what it means.

This is the report.
Can anyone help me track down the issue before I commit to the new volume (running on the same G5).
I'm worried it might be hardware related, from what I've read searching tonight.
Any help appreciated!
Tom
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Sat Oct 6 17:34:44 2012


Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x0000000000000209 PC=0x00000000722624E0
Latest crash info for cpu 1:
Exception state (sv=0x61c35780)
PC=0x722624E0; MSR=0x00009030; DAR=0x00000209; DSISR=0x40000000; LR=0x722656C0; R1=0x6290E9C0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00000000 0x722656C0 0x72257CF4 0x0037EC7C 0x0038141C 0x72255104
0x0037E6D4 0x00094E74 0x0002C100 0x00024B58 0x000B45CC 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFF8000

Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForcePPC(5.4.8)@0x72239000->0x722d4fff
dependency: com.apple.iokit.IONDRVSupport(1.7.3)@0x619c1000
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x59678000
dependency: com.apple.NVDAResmanPPC(5.4.8)@0x71d28000
dependency: com.apple.iokit.IOGraphicsFamily(1.7.3)@0x61aec000
Proceeding back via exception chain:
Exception state (sv=0x61c35780)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x598f7000)
PC=0x961D2078; MSR=0x0200F030; DAR=0x53BB9000; DSISR=0x42000000; LR=0x961D8FA0; R1=0xBFFF8000; XCP=0x00000030 (0xC00 - System call)

BSD process name corresponding to current thread: WindowServer

Mac OS version:
9L31a

Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_PPC
System model name: PowerMac7,3

 

No, (not yet anyway). I may have to if I get more kernel panics (this was the first). This issue surfaced while using the Leopard volume to troubleshoot the Tiger volume.

I'm super nervous about doing it since I'm only 15% done bringing data over from the Tiger volume, and it's NOT straightforward!
I have to do it manually (insert silent scream here...), since migration requires the source volume to be functional, and on another thread I'm trying to isolate a looping finder crash issue. http://forums.macrumors.com/showthread.php?p=15981867#post15981867

Also, before I'd do a clean install of Leopard regardless, I first have to locate a backup disk with enough space to clone/backup the current Leopard volume.
A year and a half ago I was caught with a corrupted Tiger volume as well as a corrupted backup.... never again!!
I spent forever just trying to get freaking iphoto to reimport 7,000+ pics without crashing or making 3 copies of everything (grrr..)

I'm flipped out since I can't boot from any volume but this one currently.

Lame excuse I know, but I had 3 functional boot volumes until last week.
1. Tiger volume
2. Tiger backup volume
3. Leopard volume
So no clean install until I have a fully functional clone of my Leopard volume.
I have actual work I need to do, and I'm spending days still copying prefs, re-entering serial numbers, and you probably know the rest involved in "manual migration".

 

Possible, & I think it's actually my graphics card, unless there's a way to update the firmware on a GeForce FX 5200 (circa stone age).

I'd totally forgotten, but 2 years ago, I was getting multiple panics that started here and there, and increased.
It was the graphics card dying.
It happened to my MDD G4, and it happened in this G5 two years ago.
I have another G5 I'd gotten essentially for free and I used it for parts. When the card in this machine died, I replaced it with the Geforce FX 5200 64MB from that machine.

Also, recently, mostly in the Tiger volume, the screen wouldn't draw correctly with numerous windows open. There would be a tiny thin black line across one or more windows. Moving and/or resizing them always eliminated the line.
I don't know if that might be related to a system or software issue.

Now I'm wondering if this was also a "related symptom".
Oddly, it hasn't happened at all in Leopard, with a gazillion windows open, so I can't say for sure.

Oh, and just 2 minutes after I posted my reply to you, I had a second panic gray screen "you need to.." yadah yadah...when I tried to bookmark a bunch of tabs in Firefox. The new crash report looks to my untrained eye that it happened when trying to redraw the screen... look at the backtrace & dependencies. Hardware? Software?
I could be totally wrong tho.
what do you think?
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Interval Since Last Panic Report: 237194 sec
Panics Since Last Report: 1
Anonymous UUID: A4455A34-233A-42BB-9B71-EA1653F360DB

Tue Oct 9 15:54:02 2012

Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000211 PC=0x0000000000DB04E0
Latest crash info for cpu 0:
Exception state (sv=0x62819a00)
PC=0x00DB04E0; MSR=0x00009030; DAR=0x00000211; DSISR=0x40000000; LR=0x00DB36C0; R1=0x622929C0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00000000 0x00DB36C0 0x00DA5CF4 0x0037EC7C 0x0038141C 0x00DA3104
0x0037E6D4 0x00094E74 0x0002C100 0x00024B58 0x000B45CC 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFE7850

Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForcePPC(5.4.8)@0xd87000->0xe22fff
dependency: com.apple.iokit.IONDRVSupport(1.7.3)@0x9a0000
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x840000
dependency: com.apple.NVDAResmanPPC(5.4.8)@0x9b8000
dependency: com.apple.iokit.IOGraphicsFamily(1.7.3)@0x97a000
Proceeding back via exception chain:
Exception state (sv=0x62819a00)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x627b1780)
PC=0x94BF1078; MSR=0x0200F030; DAR=0x545AC000; DSISR=0x42000000; LR=0x94BF7FA0; R1=0xBFFE7850; XCP=0x00000030 (0xC00 - System call)

BSD process name corresponding to current thread: WindowServer

Mac OS version:
9L31a

Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_PPC
System model name: PowerMac7,3

 

Ah-huh...
So,
Translation:
"dear 'Grasshopper', a very small bit of knowledge regarding a complex system, combined with an ahem 'inquiring mind' can lead to iokit misunderstanding.
Please-To-Leave the uber-diagnosing to the actual uber-programmers"

yeah, you're right. Since a G5 Grahics card is weeks & untold $$'s away, I'm going to use my new external PATA/SATA adaptor-to-usb thingie to wipe an old drive I have and backup the current Leopard volume, then do a clean install & see what happens, or doesn't happen.

I didn't know they had come up with easy to use affordable versions of these adaptors over the last couple of years. I have drives that have been sitting fallow since the MDD processor card fried.
Time to use them.

If you would, please keep an eye on this thread. I'll update it as I "do things". You're helping me to cope here, and I'm appreciative.

Reminds me of that great line from a comic in the 1990's making fun of a pro-footballer doing a public service announcement..

"Always remember, a mind is a terrible thing..."