panic(cpu 0 caller 0xffffff7f99edb490)

Hardware Overview:

Model Name: iMac

Model Identifier: iMac10,1

Processor Name: Intel Core 2 Duo

Processor Speed: 3.06 GHz

Number of Processors: 1

Total Number of Cores: 2

L2 Cache: 3 MB

Memory: 8 GB

Bus Speed: 1.07 GHz

Boot ROM Version: IM101.00CC.B00

SMC Version (system): 1.52f9

Serial Number (system): W801117U5PC

Hardware UUID: 846AEA47-FB75-5478-A3F8-6B5821430708

I have this problem when i start/ reboot my imac 21.5 inch late 2009 what should i do, thanks before. This are the crash report:

Interval Since Last Panic Report: 1678 sec

Panics Since Last Report: 2

Anonymous UUID: 683D5384-FF1F-00F8-7348-C2860CE3C877

Sat Oct 6 06:43:32 2012

panic(cpu 0 caller 0xffffff7f99edb490): "Kernel stack memory corruption detected"@/SourceCache/xnu/xnu-2050.18.24/libkern/stack_protector.c:37

Backtrace (CPU 0), Frame : Return Address

0xffffff80ffd03d60 : 0xffffff8018a1d626

0xffffff80ffd03dd0 : 0xffffff7f99edb490

0xffffff80ffd03e60 : 0xffffff8018e3181b

0xffffff80ffd03ea0 : 0xffffff8018e3133e

0xffffff80ffd03f30 : 0xffffff8018e2d2d0

0xffffff80ffd03f70 : 0xffffff8018e31e99

0xffffff80ffd03fb0 : 0xffffff8018ab26b7

Kernel Extensions in backtrace:

com.apple.driver.AirPort.Atheros40(600.70.23)[2E6077DF-D532-357F-8107-F23BC2C10 F2F]@0xffffff7f99ecd000->0xffffff7f9a015fff

dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f99050000

dependency: com.apple.iokit.IO80211Family(500.15)[4282DF5A-86B9-3213-B9B1-675FAD842A94]@0xf fffff7f99e61000

dependency: com.apple.iokit.IONetworkingFamily(3.0)[28575328-A798-34B3-BD84-D708138EBD17]@0 xffffff7f9986a000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

Not yet set

Kernel version:

Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64

Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333

Kernel slide: 0x0000000018800000

Kernel text base: 0xffffff8018a00000

System model name: iMac10,1 (Mac-F2268CC8)

System uptime in nanoseconds: 3147594850

last loaded kext at 1029545078: com.apple.driver.CoreStorageFsck 274.7 (addr 0xffffff7f9a2c4000, size 102400)

loaded kexts:

com.apple.driver.CoreStorageFsck 274.7

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.driver.AppleIRController 320.15

com.apple.driver.AppleUSBCardReader 3.1.0

com.apple.iokit.SCSITaskUserClient 3.5.1

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.2.2

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0

com.apple.driver.AppleUSBHub 5.2.5

com.apple.driver.AirPort.Atheros40 600.70.23

com.apple.driver.AppleAHCIPort 2.4.1

com.apple.nvenet 2.0.19

com.apple.driver.AppleUSBEHCI 5.4.0

com.apple.driver.AppleUSBOHCI 5.2.5

com.apple.driver.AppleEFINVRAM 1.6.1

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.7

com.apple.driver.AppleACPIButtons 1.6

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.6

com.apple.driver.AppleAPIC 1.6

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2

com.apple.driver.AppleIntelCPUPowerManagement 196.0.0

com.apple.driver.CoreStorage 274.7

com.apple.iokit.IOUSBHIDDriver 5.2.5

com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.1

com.apple.iokit.IOUSBMassStorageClass 3.5.0

com.apple.driver.AppleUSBMergeNub 5.2.5

com.apple.driver.AppleUSBComposite 5.2.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.1

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.5.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.1

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOUSBUserClient 5.2.5

com.apple.iokit.IO80211Family 500.15

com.apple.iokit.IOAHCIFamily 2.2.1

com.apple.iokit.IONetworkingFamily 3.0

com.apple.driver.NVSMU 2.2.9

com.apple.iokit.IOUSBFamily 5.4.0

com.apple.driver.AppleEFIRuntime 1.6.1

com.apple.iokit.IOHIDFamily 1.8.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 344

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.6

com.apple.iokit.IOPCIFamily 2.7.2

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

Model: iMac10,1, BootROM IM101.00CC.B00, 2 processors, Intel Core 2 Duo, 3.06 GHz, 8 GB, SMC 1.52f9

Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631

Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334648302D4346382020

Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334648302D4346382020

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.70.23-P2P

Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: ST3500418ASQ, 500.11 GB

Serial ATA Device: HL-DT-ST DVDRW GA11N

USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0x26500000 / 2

USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0x24400000 / 2

USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x06110000 / 5

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2