I have a apple mac which has started rebooting whilst using it recently I am a windows person have had a look at the log files but am confused could someone have a look and let me know if there is a reason in the report as to why my mac keeps rebooting.


Interval Since Last Panic Report: 2789 sec
Panics Since Last Report: 2
Anonymous UUID: D99978AD-F58C-7829-1C0B-C7AAF0E50960

Thu Mar 7 09:44:44 2013
panic(cpu 0 caller 0xffffff800bab7bd5): Kernel trap at 0xffffff7f8dc49d8b, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000000, CR3: 0x000000000e2ea000, CR4: 0x00000000000606e0
RAX: 0xffffff7f8dc49d77, RBX: 0xffffff8017b1b000, RCX: 0xffffff7f8dc49f54, RDX: 0x0000000000000001
RSP: 0xffffff80853ebcd0, RBP: 0xffffff80853ebd00, RSI: 0xffffff801c942ac0, RDI: 0xffffff8017b1b000
R8: 0xffffff80853ebe88, R9: 0x00000000000003ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff
R12: 0x0000000000000001, R13: 0x00000000000000b0, R14: 0xffffff808bea3b40, R15: 0x0000000000000000
RFL: 0x0000000000010292, RIP: 0xffffff7f8dc49d8b, CS: 0x0000000000000008, SS: 0x0000000000000010 Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address
0xffffff80853eb970 : 0xffffff800ba1d626
0xffffff80853eb9e0 : 0xffffff800bab7bd5
0xffffff80853ebbb0 : 0xffffff800bace4ed
0xffffff80853ebbd0 : 0xffffff7f8dc49d8b
0xffffff80853ebd00 : 0xffffff7f8dc4ccf5
0xffffff80853ebfb0 : 0xffffff800bab26b7
Kernel Extensions in backtrace:
com.thursby.kext.NetBIOS(7.0.1)[00000000-0000-0000-0000-000000000000]@0xffffff7f8dc36000->0xffffff7f8dc60fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:
12C60

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: 0x000000000b800000
Kernel text base: 0xffffff800ba00000
System model name: iMac12,1 (Mac-942B5BF58194151B)

System uptime in nanoseconds: 652385048583
last loaded kext at 432621598505: com.apple.kext.mcx.alr 529 (addr 0xffffff7f8dc9d000, size 40960)
last unloaded kext at 139393873396: com.apple.driver.AppleUSBUHCI 5.2.5 (addr 0xffffff7f8c317000, size 65536)
loaded kexts:
com.sophos.kext.sav 8.0.4
com.thursby.kext.cifs 7.0.1
com.thursby.kext.NetBIOS 7.0.1
com.apple.kext.mcx.alr 529
com.apple.filesystems.monitorfs 1.0
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AGPM 100.12.69
com.apple.iokit.IOBluetoothSerialManager 4.0.9f33
com.apple.driver.AppleMikeyHIDDriver 122
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.kext.AMDFramebuffer 8.0.0
com.apple.driver.AppleHDA 2.3.1f2
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleMikeyDriver 2.3.1f2
com.apple.AMDRadeonAccelerator 1.0.0
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleBacklight 170.2.3
com.apple.driver.AppleLPC 1.6.0
com.apple.driver.AppleIntelHD3000Graphics 8.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleMCCSControl 1.0.33
com.apple.driver.AppleIntelSNBGraphicsFB 8.0.0
com.apple.driver.AppleSMCLMU 2.0.2d0
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePolicyControl 3.2.11
com.apple.iokit.SCSITaskUserClient 3.5.1
com.apple.driver.AppleUSBCardReader 3.1.0
com.apple.AppleFSCompression.AppleFSCompressionTyp eDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTyp eZlib 1.0.0d1
com.apple.BootCache 34
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.2.2
com.apple.driver.AppleUSBHub 5.2.5
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.iokit.AppleBCM5701Ethernet 3.2.5b3
com.apple.driver.AppleAHCIPort 2.4.1
com.apple.driver.AirPort.Atheros40 600.70.23
com.apple.driver.AppleUSBEHCI 5.4.0
com.apple.driver.AppleEFINVRAM 1.6.1
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleACPIButtons 1.6
com.apple.driver.AppleHPET 1.7
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.6
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClien t 196.0.0
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.iokit.IOSerialFamily 10.0.6
com.apple.driver.DspFuncLib 2.3.1f2
com.apple.iokit.IOAudioFamily 1.8.9fc10
com.apple.kext.OSvKernDSPLib 1.6
com.apple.kext.triggers 1.0
com.apple.iokit.IOAcceleratorFamily 19.0.26
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.driver.AppleSMBusPCI 1.0.10d0
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.2.0d16
com.apple.driver.AppleSMBusController 1.0.10d0
com.apple.kext.AMD6000Controller 8.0.0
com.apple.kext.AMDSupport 8.0.0
com.apple.driver.AppleHDAController 2.3.1f2
com.apple.iokit.IOHDAFamily 2.3.1f2
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.iokit.IOSurface 86.0.3
com.apple.iokit.IOBluetoothFamily 4.0.9f33
com.apple.driver.AppleSMC 3.1.4d2
com.apple.driver.AppleGraphicsControl 3.2.11
com.apple.iokit.IONDRVSupport 2.3.5
com.apple.iokit.IOGraphicsFamily 2.3.5
com.apple.driver.AppleUSBHIDMouse 175.8
com.apple.driver.AppleHIDMouse 175.8
com.apple.driver.AppleUSBHIDKeyboard 165.5
com.apple.driver.AppleHIDKeyboard 165.5
com.apple.iokit.IOUSBHIDDriver 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.IOSCSIBlockCommandsDevice 3.5.1
com.apple.iokit.IOUSBMassStorageClass 3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.1
com.apple.driver.AppleUSBMergeNub 5.2.5
com.apple.driver.AppleUSBComposite 5.2.5
com.apple.iokit.IOUSBUserClient 5.2.5
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOEthernetAVBController 1.0.2b1
com.apple.iokit.IOAHCIFamily 2.2.1
com.apple.iokit.IO80211Family 500.15
com.apple.iokit.IONetworkingFamily 3.0
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: iMac12,1, BootROM IM121.0047.B0A, 2 processors, Intel Core i3, 3.1 GHz, 4 GB, SMC 1.71f21
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 256 MB Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x0198, 0x393930353436392D3034322E4130304C4620
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.70.23-P2P Network Service: Ethernet, Ethernet, en0 Serial ATA Device: WDC WD2500AAKS-402AA0, 250.06 GB Serial ATA Device: HL-DT-STDVDRW GA32N USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 3 USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2 USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfa130000 / 4 USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0304, 0xfa133000 / 6 USB Device: Apple Keyboard, apple_vendor_id, 0x0250, 0xfa132000 / 5 USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2 USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 3