Kernel Panic/Log file: what does it mean?

Hi,
I got the following Kernel Panic, but can't get a clue of what the log file is telling me. I guess it is related to a motherboard failure, but I'm not sure.
At the time the Kernel panic occured, my iBook wasn't doing much, but running Firefox 2.0.0.16, Airport Extreme and iPhoto 4.0.3. No USB device but a Logitech Mice was connected.
Can anyone help me with reading and understanding this Kernel Panic log.file? Thanks. Fred
panic(cpu 0): Uncorrectable machine check: pc = 0000000000524F70, msr = 0000000000149030, dsisr = 42000000, dar = 0000000014CAF000
AsyncSrc = 0000000000000000, CoreFIR = 0000000000000000
L2FIR = 0000000000000000, BusFir = 00000000ff000000
Latest stack backtrace for cpu 0:
Backtrace:
0x00083498 0x0008397C 0x0001EDA4 0x0009160C 0x000908F8 0x0009402C
Proceeding back via exception chain:
Exception state (sv=0x315E5C80)
PC=0x00524F70; MSR=0x00149030; DAR=0x14CAF000; DSISR=0x42000000; LR=0x00524F68; R1=0x120839D0; XCP=0x00000008 (0x200 - Machine check)
Backtrace:
0x00524F68 0x00522474 0x005259F8 0x00526444 0x00511E5C 0x0027E650 0x00280324 0x0007AC48
0x00021668 0x0001BCE8 0x0001C0F0 0x00094318 0xFF346713
Kernel loadable modules in backtrace (with dependencies):
com.apple.ATIRadeon8500(3.4.2)@0x50b000
dependency: com.apple.iokit.IOPCIFamily(1.4)@0x398000
dependency: com.apple.iokit.IOGraphicsFamily(1.3.5)@0x4d5000
dependency: com.apple.iokit.IONDRVSupport(1.3.5)@0x4f5000
Exception state (sv=0x2523E280)
PC=0x90007878; MSR=0x0000F030; DAR=0x00725048; DSISR=0x40000000; LR=0x900073F8; R1=0xBFFEE4C0; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 7.9.0:
Wed Mar 30 20:11:17 PST 2005; root:xnu/xnu-517.12.7.obj~1/RELEASE_PPC

Hi Jon Huber, hi Paul,
Thanks for your answers. They do confirm my worth fears, since I do sometime have to start, pressing the palmrest below the Option-Command keys, or get the Blue Screen of Death. Since Apple has interrupted its Logic Board Replacement Programm, I guess there not much I can do, but to decide if I should buy an new Mac or not. My previous iBook, a G3, also died, slowly but surely, because of a logic board failure.
I'm really found of apple products, but I cannot afford just throwing my money away every two or three years. Sadly, I'm afraid I'll have to change side, and buy a Bill Gates friendly laptop.
Sad, sad, sad...
Bye, folks.

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Kernel panics log file help

I have had 11 kernel panics in 2 weeks. Can someone help me read the log files and understand where my problem is?
Fri May 13 11:51:01 2011
panic(cpu 0 caller 0x9f8c8f): NVRM[0/1:0:0]: Read Error 0x0061002c: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0x7ef6f000 0x0a5480a2, D0, P2/4
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0x5c08bcb8 : 0x21b510 (0x5d9514 0x5c08bcec 0x223978 0x0)
0x5c08bd08 : 0x9f8c8f (0xc0e23c 0xc7e840 0xc1d3cc 0x0)
0x5c08bda8 : 0xb135d3 (0x93e4804 0x857c004 0x61002c 0x998e97)
0x5c08bdf8 : 0x1657251 (0x857c004 0x61002c 0x6400 0xa157bc4)
0x5c08be18 : 0xad7ef6 (0x857c004 0xa0cd004 0x3800 0xa00a818)
0x5c08be38 : 0xb8193e (0x857c004 0xa0cd004 0x1 0x0)
0x5c08bea8 : 0x9e9771 (0x857c004 0x0 0x0 0x0)
0x5c08bf48 : 0x99a04f (0x857c004 0x90c519c 0x5c08bf68 0x29f562)
0x5c08bf78 : 0x22fd0d (0x9487400 0x857c004 0x5c08bfc8 0x550788)
0x5c08bfc8 : 0x2a06dc (0x863ea0 0x0 0x2a06eb 0x10ed36c4)
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         com.apple.nvidia.nv50hal(6.2.6)@0x15d0000->0x19e4fff
            dependency: com.apple.NVDAResman(6.2.6)@0x992000
         com.apple.NVDAResman(6.2.6)@0x992000->0xc7ffff
            dependency: com.apple.iokit.IOPCIFamily(2.6)@0x952000
            dependency: com.apple.iokit.IONDRVSupport(2.2)@0x985000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2)@0x963000
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10J869
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Darwin Kernel Version 10.7.0: Sat Jan 29 15:17:16 PST 2011; root:xnu-1504.9.37~1/RELEASE_I386
System model name: MacBookPro6,2 (Mac-F22586C8)
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com.apple.driver.AppleUSBUHCI          4.1.5 (addr 0x14a9000, size 0x65536) - last unloaded 92561894346
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com.vmware.kext.vmnet          3.0.0
com.vmware.kext.vmioplug          3.0.0
com.vmware.kext.vmci          3.0.0
com.vmware.kext.vmx86          3.0.0
com.silex.driver.sxuptp          1.5.1
at.obdev.nke.LittleSnitch          2.2.05
com.apple.driver.AppleHWSensor          1.9.3d0 - last loaded 29427861230
com.apple.driver.AppleBluetoothMultitouch          54
com.apple.driver.AGPM          100.12.19
com.apple.driver.AppleMikeyHIDDriver          1.2.0
com.apple.driver.AppleHDA          1.9.9f12
com.apple.driver.AudioAUUC          1.54
com.apple.driver.AppleMikeyDriver          1.9.9f12
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.1.6
com.apple.driver.AppleUpstreamUserClient          3.5.4
com.apple.driver.AppleMCCSControl          1.0.17
com.apple.driver.SMCMotionSensor          3.0.0d4
com.apple.filesystems.autofs          2.1.0
com.apple.driver.AppleIntelHDGraphics          6.2.6
com.apple.driver.AppleIntelHDGraphicsFB          6.2.6
com.apple.driver.ACPI_SMC_PlatformPlugin          4.5.0d5
com.apple.driver.AppleLPC          1.4.12
com.apple.GeForce          6.2.6
com.apple.driver.AppleGraphicsControl          2.8.68
com.apple.kext.AppleSMCLMU          1.5.0d3
com.apple.driver.AppleUSBTCButtons          200.3.2
com.apple.driver.AppleUSBTCKeyboard          200.3.2
com.apple.driver.AppleIRController          303.8
com.apple.driver.AppleUSBCardReader          2.5.8
com.apple.BootCache          31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.iokit.SCSITaskUserClient          2.6.5
com.apple.iokit.IOAHCIBlockStorage          1.6.3
com.apple.driver.AppleUSBHub          4.1.7
com.apple.driver.AppleFWOHCI          4.7.1
com.apple.driver.AirPortBrcm43224          427.36.9
com.apple.iokit.AppleBCM5701Ethernet          2.3.9b6
com.apple.driver.AppleEFINVRAM          1.4.0
com.apple.driver.AppleSmartBatteryManager          160.0.0
com.apple.driver.AppleUSBEHCI          4.1.8
com.apple.driver.AppleAHCIPort          2.1.5
com.apple.driver.AppleACPIButtons          1.3.5
com.apple.driver.AppleRTC          1.3.1
com.apple.driver.AppleHPET          1.5
com.apple.driver.AppleSMBIOS          1.6
com.apple.driver.AppleACPIEC          1.3.5
com.apple.driver.AppleAPIC          1.4
com.apple.driver.AppleIntelCPUPowerManagementClient          105.13.0
com.apple.security.sandbox          1
com.apple.security.quarantine          0
com.apple.nke.applicationfirewall          2.1.11
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com.apple.driver.IOBluetoothHIDDriver          2.4.0f1
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com.apple.driver.AppleProfileTimestampAction          10
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com.apple.iokit.IOFireWireIP          2.0.3
com.apple.driver.AppleHDAController          1.9.9f12
com.apple.iokit.IOHDAFamily          1.9.9f12
com.apple.iokit.AppleProfileFamily          41
com.apple.driver.IOPlatformPluginFamily          4.5.0d5
com.apple.driver.AppleSMBusPCI          1.0.8d0
com.apple.nvidia.nv50hal          6.2.6
com.apple.NVDAResman          6.2.6
com.apple.iokit.IONDRVSupport          2.2
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com.apple.driver.BroadcomUSBBluetoothHCIController          2.4.0f1
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com.apple.driver.AppleUSBComposite          3.9.0
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fredericlang,
Your plan sounds good to me, and yes, there could be some "intermittent" hardware failure causing the panics.
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What does this mean?
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Kernel Panic/Log file: what does it mean?

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