Mac 10.7.4 keep on crashing when I turn it on

I don't know whats the problem with this.

This is what I get. Please help

Interval Since Last Panic Report: 17101 sec

Panics Since Last Report: 7

Anonymous UUID: 5EFBF3AC-F5C0-4C35-B34C-6FFC372C8BCB

Wed Aug 22 20:55:56 2012

panic(cpu 0 caller 0xffffff80002c266d): Kernel trap at 0xffffff80002932e8, type 13=general protection, registers:

CR0: 0x0000000080010033, CR2: 0x00007ff898ce7890, CR3: 0x000000000e497010, CR4: 0x00000000000606e0

RAX: 0xffffff8007298650, RBX: 0xffffff8007207648, RCX: 0xffffff80008bd800, RDX: 0x00000000000003a0

RSP: 0xffffff8160ccbae0, RBP: 0xffffff8160ccbb00, RSI: 0xffffff80072c7a98, RDI: 0xffffff80008bdba0

R8: 0xfff5ff80072c9e98, R9: 0xffffff8160ccbbc8, R10: 0xfffeffffffffffff, R11: 0x00000000000000bc

R12: 0xffffff80071fa868, R13: 0xffffff80008bd640, R14: 0x00000000000000c6, R15: 0x000000000000003a

RFL: 0x0000000000010212, RIP: 0xffffff80002932e8, CS: 0x0000000000000008, SS: 0x0000000000000010

CR2: 0x00007ff898ce7890, Error code: 0x0000000000000000, Faulting CPU: 0x0

Backtrace (CPU 0), Frame : Return Address

0xffffff8160ccb7a0 : 0xffffff8000220702

0xffffff8160ccb820 : 0xffffff80002c266d

0xffffff8160ccb9c0 : 0xffffff80002d7a1d

0xffffff8160ccb9e0 : 0xffffff80002932e8

0xffffff8160ccbb00 : 0xffffff8000295a12

0xffffff8160ccbb20 : 0xffffff8000284fdb

0xffffff8160ccbc30 : 0xffffff8000285596

0xffffff8160ccbca0 : 0xffffff8000276b90

0xffffff8160ccbd90 : 0xffffff80002787fe

0xffffff8160ccbe10 : 0xffffff80002379ec

0xffffff8160ccbe50 : 0xffffff8000543155

0xffffff8160ccbe80 : 0xffffff8000543267

0xffffff8160ccbeb0 : 0xffffff800054369e

0xffffff8160ccbf00 : 0xffffff80005437dc

0xffffff8160ccbf50 : 0xffffff80005caa9b

0xffffff8160ccbfb0 : 0xffffff80002d8363

BSD process name corresponding to current thread: LCA

Boot args: rp=file:///com.apple.recovery.boot/BaseSystem.dmg

Mac OS version:

11C74

Kernel version:

Darwin Kernel Version 11.2.0: Tue Aug 9 20:54:00 PDT 2011; root:xnu-1699.24.8~1/RELEASE_X86_64

Kernel UUID: 59275DFA-10C0-30B3-9E26-F7B5DFB1A432

System model name: iMac12,1 (Mac-942B5BF58194151B)

System uptime in nanoseconds: 22359198190

last loaded kext at 20856308726: com.apple.driver.IOBluetoothHIDDriver 4.0.1f4 (addr 0xffffff7f80d56000, size 73728)

loaded kexts:

com.apple.driver.AppleHWSensor 1.9.4d0

com.apple.driver.AudioAUUC 1.59

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleUpstreamUserClient 3.5.9

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AppleMCCSControl 1.0.26

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleTyMCEDriver 1.0.2d2

com.apple.driver.AGPM 100.12.42

com.apple.driver.AppleMikeyDriver 2.1.3f7

com.apple.kext.ATIFramebuffer 7.1.2

com.apple.driver.AppleHDA 2.1.3f7

com.apple.driver.AudioIPCDriver 1.2.1

com.apple.driver.AppleMuxControl 3.0.16

com.apple.ATIRadeonX3000 7.1.2

com.apple.driver.AppleSMCLMU 2.0.1d2

com.apple.driver.AirPort.Atheros40 501.58.1

com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.5d4

com.apple.driver.AppleLPC 1.5.3

com.apple.driver.AppleBacklight 170.1.9

com.apple.nke.webcontentfilter 3.0

com.apple.driver.DiskImages.ReadWriteDiskImage 331

com.apple.driver.DiskImages.SparseDiskImage 331

com.apple.driver.DiskImages.UDIFDiskImage 331

com.apple.driver.DiskImages.FileBackingStore 331

com.apple.driver.DiskImages.HTTPBackingStore 331

com.apple.driver.DiskImages.RAMBackingStore 331

com.apple.iokit.SCSITaskUserClient 3.0.1

com.apple.driver.AppleUSBCardReader 3.0.1

com.apple.driver.AppleIRController 312

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 33

com.apple.iokit.IOAHCIBlockStorage 2.0.1

com.apple.driver.AppleFWOHCI 4.8.9

com.apple.driver.AppleUSBHub 4.5.0

com.apple.iokit.AppleBCM5701Ethernet 3.0.8b2

com.apple.driver.AppleEFINVRAM 1.5.0

com.apple.driver.AppleAHCIPort 2.2.0

com.apple.driver.AppleUSBUHCI 4.4.5

com.apple.driver.AppleUSBEHCI 4.5.0

com.apple.driver.AppleACPIButtons 1.4

com.apple.driver.AppleRTC 1.4

com.apple.driver.AppleHPET 1.6

com.apple.driver.AppleSMBIOS 1.7

com.apple.driver.AppleACPIEC 1.4

com.apple.driver.AppleAPIC 1.5

com.apple.driver.AppleIntelCPUPowerManagementClient 167.0.0

com.apple.nke.applicationfirewall 3.2.30

com.apple.security.quarantine 1

com.apple.driver.AppleIntelCPUPowerManagement 167.0.0

com.apple.driver.IOBluetoothHIDDriver 4.0.1f4

com.apple.driver.AppleAVBAudio 1.0.0d11

com.apple.iokit.IOSurface 80.0

com.apple.iokit.IOBluetoothSerialManager 4.0.1f4

com.apple.iokit.IOSerialFamily 10.0.5

com.apple.iokit.IOAVBFamily 1.0.0d22

com.apple.driver.AppleHDAHardwareConfigDriver 2.1.3f7

com.apple.driver.DspFuncLib 2.1.3f7

com.apple.iokit.IOAudioFamily 1.8.3fc11

com.apple.kext.OSvKernDSPLib 1.3

com.apple.driver.AppleSMBusController 1.0.10d0

com.apple.iokit.IOFireWireIP 2.2.4

com.apple.driver.AppleHDAController 2.1.3f7

com.apple.iokit.IOHDAFamily 2.1.3f7

com.apple.driver.ApplePolicyControl 3.0.16

com.apple.driver.AppleGraphicsControl 3.0.16

com.apple.iokit.IO80211Family 411.1

com.apple.driver.AppleSMC 3.1.1d8

com.apple.driver.IOPlatformPluginFamily 4.7.5d4

com.apple.driver.AppleSMBusPCI 1.0.10d0

com.apple.driver.AppleBacklightExpert 1.0.3

com.apple.iokit.IONDRVSupport 2.3.2

com.apple.driver.AppleThunderboltEDMSink 1.1.3

com.apple.driver.AppleThunderboltEDMSource 1.1.3

com.apple.kext.ATI6000Controller 7.1.2

com.apple.kext.ATISupport 7.1.2

com.apple.driver.AppleIntelSNBGraphicsFB 7.1.2

com.apple.iokit.IOGraphicsFamily 2.3.2

com.apple.driver.DiskImages.KernelBacked 331

com.apple.driver.AppleFileSystemDriver 13

com.apple.driver.AppleThunderboltDPOutAdapter 1.5.0

com.apple.driver.AppleThunderboltDPInAdapter 1.5.0

com.apple.driver.AppleThunderboltDPAdapterFamily 1.5.0

com.apple.driver.AppleThunderboltPCIDownAdapter 1.1.8

com.apple.driver.BroadcomUSBBluetoothHCIController 4.0.1f4

com.apple.driver.AppleUSBBluetoothHCIController 4.0.1f4

com.apple.iokit.IOBluetoothFamily 4.0.1f4

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.0.1

com.apple.iokit.IOBDStorageFamily 1.6

com.apple.iokit.IODVDStorageFamily 1.7

com.apple.iokit.IOCDStorageFamily 1.7

com.apple.iokit.IOSCSIBlockCommandsDevice 3.0.1

com.apple.iokit.IOUSBMassStorageClass 3.0.0

com.apple.iokit.IOAHCISerialATAPI 2.0.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.0.1

com.apple.iokit.IOUSBHIDDriver 4.4.5

com.apple.driver.AppleUSBMergeNub 4.5.3

com.apple.driver.AppleUSBComposite 3.9.0

com.apple.driver.XsanFilter 403

com.apple.driver.AppleThunderboltNHI 1.2.9

com.apple.iokit.IOThunderboltFamily 1.7.1

com.apple.iokit.IOFireWireFamily 4.4.5

com.apple.iokit.IOUSBUserClient 4.5.3

com.apple.iokit.IOEthernetAVBController 1.0.0d5

com.apple.iokit.IONetworkingFamily 2.0

com.apple.iokit.IOAHCIFamily 2.0.7

com.apple.driver.AppleEFIRuntime 1.5.0

com.apple.iokit.IOUSBFamily 4.5.3

com.apple.iokit.IOHIDFamily 1.7.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 165.3

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 331

com.apple.iokit.IOStorageFamily 1.7

com.apple.driver.AppleKeyStore 28.18

com.apple.driver.AppleACPIPlatform 1.4

com.apple.iokit.IOPCIFamily 2.6.7

com.apple.iokit.IOACPIFamily 1.4

Model: iMac12,1, BootROM IM121.0047.B1E, 4 processors, Intel Core i5, 2.5 GHz, 12 GB, SMC 1.71f22

Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x02FE, 0x45424A3230554638424353302D444A2D4620

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x02FE, 0x45424A3230554638424353302D444A2D4620

Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x01BA, 0x202020202020202020202020202020202020

Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x01BA, 0x202020202020202020202020202020202020

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.64.8-P2P

Bluetooth: Version 4.0.5f11, 2 service, 18 devices, 0 incoming serial ports

Serial ATA Device: ST3500418AS, 500.11 GB

Serial ATA Device: OPTIARC DVD RW AD-5690H

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 3

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2

USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 5

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2

USB Device: Dynex 5-Button Wired Optical Mouse, 0x0461 (Primax Electronics), 0x4d42, 0xfd140000 / 5

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 4

USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 3