System Crash

Several times in the last few days my PowerMac G5 OS X 10.5.2 has apparently
crashed during an extended period of inactivity, that is, when I tried to
use it again it was "frozen".

I could move the mouse around on the desktop but nothing happened when I
clicked it on the dock, menu bar, or desktop icons.

So I pressed the power button and it shut down. Several minutes later I
restarted and it booted up normally except I got an error message onscreen
asking if I wnated to send an error report to Apple.

I copied the report and have pasted it below but I have no idea what it
means.

Can anyone here tell me what the report means? TIA

------------------------------------------------------------
Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x0000000000000004
PC=0x0000000000D716BC
Latest crash info for cpu 1:
Exception state (sv=0x4b835500)
PC=0x00D716BC; MSR=0x00009030; DAR=0x00000004; DSISR=0x42000000;
LR=0x00D71658; R1=0x51D57D80; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00D71658 0x00D7197C 0x00D71A90 0x000B05D4
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOATABlockStorage(2.0.1)@0xd64000->0xd76fff
dependency: com.apple.iokit.IOATAFamily(1.7.3f1)@0xd52000
dependency: com.apple.iokit.IOStorageFamily(1.5.2)@0xb9a000
Proceeding back via exception chain:
Exception state (sv=0x4b835500)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x5c0eea00)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000;
LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

BSD process name corresponding to current thread: kernel_task

Mac OS version:
9C7010

Kernel version:
Darwin Kernel Version 9.2.2: Tue Mar 4 21:23:43 PST 2008;
root:xnu-1228.4.31~1/RELEASE_PPC
System model name: PowerMac11,2
panic(cpu 1 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 1:
Backtrace:
0x0009B478 0x0009BE1C 0x00029DD4 0x000AF210 0x000B2A78
Proceeding back via exception chain:
Exception state (sv=0x4b835500)
PC=0x00D716BC; MSR=0x00009030; DAR=0x00000004; DSISR=0x42000000;
LR=0x00D71658; R1=0x51D57D80; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00D71658 0x00D7197C 0x00D71A90 0x000B05D4
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOATABlockStorage(2.0.1)@0xd64000->0xd76fff
dependency: com.apple.iokit.IOATAFamily(1.7.3f1)@0xd52000
dependency: com.apple.iokit.IOStorageFamily(1.5.2)@0xb9a000
Exception state (sv=0x5c0eea00)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000;
LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

BSD process name corresponding to current thread: kernel_task


--
I don't know how I got over the hill without getting to the top.
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