In the last week or so, my iMac G5 has been experiencing kernel panics when I wake it up in the morning.
It only seems to happen after several hours of sleep, and not if it's been asleep for just a couple of hours. Sometimes it will KP again on restart.
The KP is always accompanied by video distortion. Sometimes it happens immediately, and sometimes after a few seconds. This morning I was able to read a short e-mail message before it happened.
The Apple Hardware Test reports no hardware problems after both the basic and extended tests.
Yesterday, I did a full erase and reinstall of the OS. No luck. It happened again this morning.
I'd be very thankful for any suggestions as to what I should do at this point.
Here's the panic log, which seems to confirm that it's a video problem:
Sun Aug 28 08:27:50 2005
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000046DB634E PC=0x00000000009F4BFC
Latest crash info for cpu 0:
Exception state (sv=0x2FB99780)
PC=0x009F4BFC; MSR=0x00009030; DAR=0x46DB634E; DSISR=0x40000000; LR=0x009F5604; R1=0x17A4B950; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x009F6598 0x009F5604 0x009FBAC0 0x009FB400 0x009F8AF0 0x009F8D28
0x009DCBE8 0x002E54C0 0x002E738C 0x0008C404 0x000291C0 0x000233AC 0x000ABE2C 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFFE9D0
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.0.6)@0x9d5000
dependency: com.apple.iokit.IOPCIFamily(1.6)@0x472000
dependency: com.apple.iokit.IOGraphicsFamily(1.4)@0x5a6000
dependency: com.apple.iokit.IONDRVSupport(1.4)@0x5ca000
dependency: com.apple.NVDAResman(4.0.6)@0x5e0000
Proceeding back via exception chain:
Exception state (sv=0x2FB99780)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x30099C80)
PC=0x9000A778; MSR=0x0000F030; DAR=0x002C5006; DSISR=0x42000000; LR=0x9000A6BC; R1=0xBFFFE9D0; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.2.0: Fri Jun 24 17:46:54 PDT 2005; root:xnu-792.2.4.obj~3/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x00095544 0x00095A5C 0x0002683C 0x000A819C 0x000ABB00
Proceeding back via exception chain:
Exception state (sv=0x2FB99780)
PC=0x009F4BFC; MSR=0x00009030; DAR=0x46DB634E; DSISR=0x40000000; LR=0x009F5604; R1=0x17A4B950; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x009F6598 0x009F5604 0x009FBAC0 0x009FB400 0x009F8AF0 0x009F8D28
0x009DCBE8 0x002E54C0 0x002E738C 0x0008C404 0x000291C0 0x000233AC 0x000ABE2C 0x00000000
backtrace terminated - frame not mapped or invalid: 0xBFFFE9D0
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.0.6)@0x9d5000
dependency: com.apple.iokit.IOPCIFamily(1.6)@0x472000
dependency: com.apple.iokit.IOGraphicsFamily(1.4)@0x5a6000
dependency: com.apple.iokit.IONDRVSupport(1.4)@0x5ca000
dependency: com.apple.NVDAResman(4.0
*********
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