Mac laptops forum: Kernal fault that makes my macbbok crash

Hi ,please,please,please someone help me.
I keep getting a kernal fault and my system crashes
Can anyone tell me what the following report means:

Interval Since Last Panic Report: 657987 sec
Panics Since Last Report: 3
Anonymous UUID: DCA0C6EE-9DE8-47FB-B78C-8231F015A153

Wed May 9 10:43:00 2012
panic(cpu 1 caller 0xffffff80002c266d): Kernel trap at 0xffffff80002e845d, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0xffffff0079050cd0, CR3: 0x000000006dafb000, CR4: 0x0000000000000660
RAX: 0x0000000000000000, RBX: 0xffffff80177970e0, RCX: 0xffffff0079050cd0, RDX: 0xffffff800b65ac60
RSP: 0xffffff808dd73850, RBP: 0xffffff808dd73860, RSI: 0x0000000000000001, RDI: 0xffffff80177970e0
R8: 0xffffff808e433000, R9: 0xffffff808dd7374a, R10: 0x000000008dd70198, R11: 0x0000000000000000
R12: 0x0000000000000001, R13: 0x0000000000000000, R14: 0xffffff800f288900, R15: 0xffffff800ba9e808
RFL: 0x0000000000010246, RIP: 0xffffff80002e845d, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0xffffff0079050cd0, Error code: 0x0000000000000002, Faulting CPU: 0x1

Backtrace (CPU 1), Frame : Return Address
0xffffff808dd73510 : 0xffffff8000220702
0xffffff808dd73590 : 0xffffff80002c266d
0xffffff808dd73730 : 0xffffff80002d7a1d
0xffffff808dd73750 : 0xffffff80002e845d
0xffffff808dd73860 : 0xffffff80002e85ef
0xffffff808dd73880 : 0xffffff80004fbfb6
0xffffff808dd739d0 : 0xffffff80004fc743
0xffffff808dd73a30 : 0xffffff800031af68
0xffffff808dd73a90 : 0xffffff80002fda97
0xffffff808dd73af0 : 0xffffff800031145b
0xffffff808dd73b90 : 0xffffff800030a290
0xffffff808dd73c50 : 0xffffff800030a80e
0xffffff808dd73f50 : 0xffffff80005caa7b
0xffffff808dd73fb0 : 0xffffff80002d8363

BSD process name corresponding to current thread: Mail

Mac OS version:
11D50

Kernel version:
Darwin Kernel Version 11.3.0: Thu Jan 12 18:47:41 PST 2012; root:xnu-1699.24.23~1/RELEASE_X86_64
Kernel UUID: 7B6546C7-70E8-3ED8-A6C3-C927E4D3D0D6
System model name: MacBook5,1 (Mac-F42D89C8)

System uptime in nanoseconds: 3720945523513
last loaded kext at 39220544328: com.apple.driver.AppleHWSensor 1.9.4d0 (addr 0xffffff7f81d50000, size 28672)
last unloaded kext at 218703901767: com.apple.driver.AppleUSBTCKeyEventDriver 225.2 (addr 0xffffff7f81b71000, size 8192)
loaded kexts:
com.apple.driver.AppleHWSensor 1.9.4d0
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleMikeyHIDDriver 122
com.apple.driver.AppleHDA 2.1.7f9
com.apple.driver.AGPM 100.12.42
com.apple.driver.AppleUpstreamUserClient 3.5.9
com.apple.driver.AppleMCCSControl 1.0.26
com.apple.driver.AudioAUUC 1.59
com.apple.driver.AppleMikeyDriver 2.1.7f9
com.apple.driver.AppleBacklight 170.1.9
com.apple.driver.SMCMotionSensor 3.0.1d2
com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.5d4
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleSMCLMU 2.0.1d2
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AudioIPCDriver 1.2.2
com.apple.GeForce 7.1.8
com.apple.driver.AppleLPC 1.5.3
com.apple.driver.AppleUSBTCButtons 225.2
com.apple.driver.AppleUSBTCKeyboard 225.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 33
com.apple.driver.AppleIRController 312
com.apple.iokit.SCSITaskUserClient 3.0.3
com.apple.iokit.IOAHCIBlockStorage 2.0.1
com.apple.driver.AirPort.Brcm4331 513.20.19
com.apple.driver.AppleUSBHub 4.5.0
com.apple.nvenet 2.0.17
com.apple.driver.AppleAHCIPort 2.2.0
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleUSBEHCI 4.5.8
com.apple.driver.AppleUSBOHCI 4.4.5
com.apple.driver.AppleEFINVRAM 1.5.0
com.apple.driver.AppleRTC 1.4
com.apple.driver.AppleHPET 1.6
com.apple.driver.AppleACPIButtons 1.4
com.apple.driver.AppleSMBIOS 1.7
com.apple.driver.AppleACPIEC 1.4
com.apple.driver.AppleAPIC 1.5
com.apple.driver.AppleIntelCPUPowerManagementClient 167.3.0
com.apple.nke.applicationfirewall 3.2.30
com.apple.security.quarantine 1.1
com.apple.driver.AppleIntelCPUPowerManagement 167.3.0
com.apple.kext.triggers 1.0
com.apple.driver.DspFuncLib 2.1.7f9
com.apple.driver.AppleAVBAudio 1.0.0d11
com.apple.driver.AppleHDAController 2.1.7f9
com.apple.iokit.IOHDAFamily 2.1.7f9
com.apple.driver.AppleBacklightExpert 1.0.3
com.apple.driver.IOPlatformPluginFamily 4.7.5d4
com.apple.driver.AppleSMBusController 1.0.10d0
com.apple.iokit.IOSurface 80.0
com.apple.iokit.IOBluetoothSerialManager 4.0.3f12
com.apple.iokit.IOSerialFamily 10.0.5
com.apple.iokit.IOAVBFamily 1.0.0d22
com.apple.iokit.IOEthernetAVBController 1.0.0d5
com.apple.iokit.IOAudioFamily 1.8.6fc6
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.ApplePolicyControl 3.0.16
com.apple.driver.AppleGraphicsControl 3.0.16
com.apple.driver.AppleSMBusPCI 1.0.10d0
com.apple.nvidia.nv50hal 7.1.8
com.apple.NVDAResman 7.1.8
com.apple.iokit.IONDRVSupport 2.3.2
com.apple.iokit.IOGraphicsFamily 2.3.2
com.apple.driver.AppleSMC 3.1.1d8
com.apple.driver.BroadcomUSBBluetoothHCIController 4.0.3f12
com.apple.driver.AppleUSBBluetoothHCIController 4.0.3f12
com.apple.iokit.IOBluetoothFamily 4.0.3f12
com.apple.driver.AppleUSBMultitouch 227.1
com.apple.iokit.IOUSBHIDDriver 4.4.5
com.apple.driver.AppleUSBMergeNub 4.5.3
com.apple.driver.AppleUSBComposite 4.5.8
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.0.3
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.7
com.apple.iokit.IOCDStorageFamily 1.7
com.apple.driver.XsanFilter 403
com.apple.iokit.IOAHCISerialATAPI 2.0.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.0.3
com.apple.iokit.IO80211Family 412.2
com.apple.iokit.IOUSBUserClient 4.5.8
com.apple.iokit.IONetworkingFamily 2.0
com.apple.iokit.IOAHCIFamily 2.0.7
com.apple.iokit.IOUSBFamily 4.5.8
com.apple.driver.NVSMU 2.2.9
com.apple.driver.AppleEFIRuntime 1.5.0
com.apple.iokit.IOHIDFamily 1.7.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 177.3
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.DiskImages 331.3
com.apple.iokit.IOStorageFamily 1.7
com.apple.driver.AppleKeyStore 28.18
com.apple.driver.AppleACPIPlatform 1.4
com.apple.iokit.IOPCIFamily 2.6.8
com.apple.iokit.IOACPIFamily 1.4
Model: MacBook5,1, BootROM MB51.007D.B03, 2 processors, Intel Core 2 Duo, 2 GHz, 4 GB, SMC 1.32f8
Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x0000, 0x000000000000000000000000000000000000
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1067 MHz, 0x0000, 0x000000000000000000000000000000000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.100.98.75.19)
Bluetooth: Version 4.0.3f12, 2 service, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: FUJITSU MHZ2160BH FFS G1, 160.04 GB
Serial ATA Device: HL-DT-ST DVDRW GS21N
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0x24400000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8213, 0x06110000 / 3
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0237, 0x04600000 / 3
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2