My Macbook 2012 has restarted twice in the last 2 days. I just came back from Burning Man, which is a harsh desert environment. I may have left the laptop on accidentally the whole time, but it was in the trunk and didn't get dusty at all. Apart from that, the only other new thing I have done to it is I uploaded and watched a bunch of videos and pictures from my GoPro (which I didn't own before). I did a little research and here's a kernel report.
Anonymous UUID: E913B15A-1B15-6EF3-6B4E-56CCF719FF67
Mon Sep 7 13:54:57 2015
*** Panic Report ***
panic(cpu 1 caller 0xffffff800a5fef12): "Possible memory corruption: pmap_pv_remove(0xffffff801d08c618,0x104c02000,0x36ea2, 0x36ea2004, 0xffffff80a42fbbb4, 0xfffffeaa8044b010): null pv_list!"@/SourceCache/xnu/xnu-2782.20.48/osfmk/i386/pmap_internal.h:768
Backtrace (CPU 1), Frame : Return Address
0xffffff80a42fba70 : 0xffffff800a52bda1
0xffffff80a42fbaf0 : 0xffffff800a5fef12
0xffffff80a42fbbe0 : 0xffffff800a5ff645
0xffffff80a42fbc40 : 0xffffff800a5ad505
0xffffff80a42fbd50 : 0xffffff800a5a319c
0xffffff80a42fbd80 : 0xffffff800a54e637
0xffffff80a42fbdc0 : 0xffffff800a9c1d49
0xffffff80a42fbe30 : 0xffffff800a9d9572
0xffffff80a42fbeb0 : 0xffffff800a9d9a47
0xffffff80a42fbef0 : 0xffffff800a5282d6
0xffffff80a42fbf20 : 0xffffff800a61843e
0xffffff80a42fbf40 : 0xffffff800a634b3f
BSD process name corresponding to current thread: com.avast.daemon
Mac OS version:
14D136
Kernel version:
Darwin Kernel Version 14.3.0: Mon Mar 23 11:59:05 PDT 2015; root:xnu-2782.20.48~5/RELEASE_X86_64
Kernel UUID: 4B3A11F4-77AA-3D27-A22D-81A1BC5B504D
Kernel slide: 0x000000000a200000
Kernel text base: 0xffffff800a400000
__HIB text base: 0xffffff800a300000
System model name: MacBookPro9,2 (Mac-6F01561E16C75D06)
System uptime in nanoseconds: 284815027837305
last loaded kext at 281943384597111: com.apple.driver.AppleUSBTCKeyEventDriver 240.2 (addr 0xffffff7f8cdb3000, size 12288)
last unloaded kext at 282045422907734: com.apple.driver.AppleUSBCDC 4.3.3b1 (addr 0xffffff7f8cdad000, size 16384)
loaded kexts:
com.avast.AvastFileShield 2.1.0
com.avast.PacketForwarder 2.0
com.paceap.kext.pacesupport.snowleopard 5.9
com.apple.filesystems.msdosfs 1.10
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AGPM 110.19.5
com.apple.driver.X86PlatformShim 1.0.0
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.3.4f4
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.driver.AppleMikeyDriver 272.18
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleHDA 272.18
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AppleBacklight 170.7.4
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleMCCSControl 1.2.11
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.driver.AppleIntelHD4000Graphics 10.0.6
com.apple.driver.AppleIntelFramebufferCapri 10.0.6
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleIRController 327.5
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 36
com.apple.iokit.SCSITaskUserClient 3.7.5
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AppleUSBHub 705.4.2
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AppleFWOHCI 5.5.2
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AirPort.Brcm4360 930.37.3
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 272.18
com.apple.kext.OSvKernDSPLib 1.15
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.iokit.IOBluetoothFamily 4.3.4f4
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.iokit.IOSurface 97.4
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOAcceleratorFamily2 156.14
com.apple.AppleGraphicsDeviceControl 3.10.22
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.driver.AppleHDAController 272.18
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOHDAFamily 272.18
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.AppleUSBMultitouch 245.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.iokit.IOAHCISerialATAPI 2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.2
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.iokit.IOFireWireFamily 4.5.6
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IO80211Family 730.60
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 396
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
com.apple.kec.Libm 1
Anonymous UUID: E913B15A-1B15-6EF3-6B4E-56CCF719FF67
Mon Sep 7 13:54:57 2015
*** Panic Report ***
panic(cpu 1 caller 0xffffff800a5fef12): "Possible memory corruption: pmap_pv_remove(0xffffff801d08c618,0x104c02000,0x36ea2, 0x36ea2004, 0xffffff80a42fbbb4, 0xfffffeaa8044b010): null pv_list!"@/SourceCache/xnu/xnu-2782.20.48/osfmk/i386/pmap_internal.h:768
Backtrace (CPU 1), Frame : Return Address
0xffffff80a42fba70 : 0xffffff800a52bda1
0xffffff80a42fbaf0 : 0xffffff800a5fef12
0xffffff80a42fbbe0 : 0xffffff800a5ff645
0xffffff80a42fbc40 : 0xffffff800a5ad505
0xffffff80a42fbd50 : 0xffffff800a5a319c
0xffffff80a42fbd80 : 0xffffff800a54e637
0xffffff80a42fbdc0 : 0xffffff800a9c1d49
0xffffff80a42fbe30 : 0xffffff800a9d9572
0xffffff80a42fbeb0 : 0xffffff800a9d9a47
0xffffff80a42fbef0 : 0xffffff800a5282d6
0xffffff80a42fbf20 : 0xffffff800a61843e
0xffffff80a42fbf40 : 0xffffff800a634b3f
BSD process name corresponding to current thread: com.avast.daemon
Mac OS version:
14D136
Kernel version:
Darwin Kernel Version 14.3.0: Mon Mar 23 11:59:05 PDT 2015; root:xnu-2782.20.48~5/RELEASE_X86_64
Kernel UUID: 4B3A11F4-77AA-3D27-A22D-81A1BC5B504D
Kernel slide: 0x000000000a200000
Kernel text base: 0xffffff800a400000
__HIB text base: 0xffffff800a300000
System model name: MacBookPro9,2 (Mac-6F01561E16C75D06)
System uptime in nanoseconds: 284815027837305
last loaded kext at 281943384597111: com.apple.driver.AppleUSBTCKeyEventDriver 240.2 (addr 0xffffff7f8cdb3000, size 12288)
last unloaded kext at 282045422907734: com.apple.driver.AppleUSBCDC 4.3.3b1 (addr 0xffffff7f8cdad000, size 16384)
loaded kexts:
com.avast.AvastFileShield 2.1.0
com.avast.PacketForwarder 2.0
com.paceap.kext.pacesupport.snowleopard 5.9
com.apple.filesystems.msdosfs 1.10
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AGPM 110.19.5
com.apple.driver.X86PlatformShim 1.0.0
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.3.4f4
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.driver.AppleMikeyDriver 272.18
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleHDA 272.18
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AppleBacklight 170.7.4
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleMCCSControl 1.2.11
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.driver.AppleIntelHD4000Graphics 10.0.6
com.apple.driver.AppleIntelFramebufferCapri 10.0.6
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleIRController 327.5
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 36
com.apple.iokit.SCSITaskUserClient 3.7.5
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AppleUSBHub 705.4.2
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AppleFWOHCI 5.5.2
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AirPort.Brcm4360 930.37.3
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 272.18
com.apple.kext.OSvKernDSPLib 1.15
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.iokit.IOBluetoothFamily 4.3.4f4
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.iokit.IOSurface 97.4
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOAcceleratorFamily2 156.14
com.apple.AppleGraphicsDeviceControl 3.10.22
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.driver.AppleHDAController 272.18
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOHDAFamily 272.18
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.AppleUSBMultitouch 245.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.iokit.IOAHCISerialATAPI 2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.2
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.iokit.IOFireWireFamily 4.5.6
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IO80211Family 730.60
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 396
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
com.apple.kec.Libm 1