Kernal panic when shutting down

Question

I&#x27;ve had 3 kernal panics in the past week when shutting down my macbook pro. Its a mid 2012 macbook pro with mountain lion. Here is the report log [which is the same for all 3 panics]panic(cpu 1 caller 0xffffff802ceb7b95): Kernel trap at 0xffffff802ce46084, type 13&#x3D;general protection, registers:CR0: 0x0000000080010033, CR2: 0x00007fff7e8ecfc8, CR3: 0x000000000bade032, CR4: 0x00000000001606e0RAX: 0xdeadbeefdeadbeef, RBX: 0xffffff7fae9ee148, RCX: 0xffffff80407c10b0, RDX: 0x0000000000000000RSP: 0xffffff811cff2940, RBP: 0xffffff811cff2940, RSI: 0xffffff7fae9ee360, RDI: 0xffffff803f4bc550R8:  0xffffff803f9d9ba0, R9:  0x0000000000000000, R10: 0xffffff80407c10b0, R11: 0xffffff811cff39d8R12: 0x0000000000000001, R13: 0xffffff803f9d9ba0, R14: 0xffffff803f9d9ba0, R15: 0xffffff80407c10b0RFL: 0x0000000000010282, RIP: 0xffffff802ce46084, CS:  0x0000000000000008, SS:  0x0000000000000010Fault CR2: 0x00007fff7e8ecfc8, Error code: 0x0000000000000000, Fault CPU: 0x1Backtrace (CPU 1), Frame : Return Address0xffffff811cff25e0 : 0xffffff802ce1d5f6 0xffffff811cff2650 : 0xffffff802ceb7b95 0xffffff811cff2820 : 0xffffff802cece4ad 0xffffff811cff2840 : 0xffffff802ce46084 0xffffff811cff2940 : 0xffffff802cf0f9a6 0xffffff811cff2950 : 0xffffff7fae9ed011 0xffffff811cff29b0 : 0xffffff7fae9ec46b 0xffffff811cff3a30 : 0xffffff802d140db1 0xffffff811cff3a90 : 0xffffff802cef5666 0xffffff811cff3ae0 : 0xffffff802cf09311 0xffffff811cff3b90 : 0xffffff802cefbb09 0xffffff811cff3c40 : 0xffffff802cefc3e2 0xffffff811cff3f50 : 0xffffff802d1e17da 0xffffff811cff3fb0 : 0xffffff802cececf3       Kernel Extensions in backtrace:         com.avast.AvastFileShield(1.0.1)[573200C9-0B31-8BA4-099E-1DDEFCDE4C88]@0xffffff 7fae9eb000-&gt;0xffffff7fae9f0fffBSD process name corresponding to current thread: launchdMac OS version:12A269Kernel version:Darwin Kernel Version 12.0.0: Sun Jun 24 23:00:16 PDT 2012; root:xnu-2050.7.9~1/RELEASE_X86_64Kernel UUID: 8D5F8EF3-9D12-384B-8070-EF2A49C45D24Kernel slide:     0x000000002cc00000Kernel text base: 0xffffff802ce00000System model name: MacBookPro9,2 (Mac-6F01561E16C75D06)System uptime in nanoseconds: 43895918140405last loaded kext at 21278221950502: com.apple.filesystems.msdosfs          1.8 (addr 0xffffff7faea23000, size 65536)last unloaded kext at 21874079173392: com.apple.iokit.IOUSBMassStorageClass          3.5.0 (addr 0xffffff7fae9fa000, size 69632)loaded kexts:com.avast.PacketForwarder          1.3com.avast.AvastFileShield          1.0.1com.apple.driver.AudioAUUC          1.60com.apple.iokit.IOBluetoothSerialManager          4.0.9f8com.apple.driver.X86PlatformShim          1.0.0com.apple.driver.AGPM          100.12.69com.apple.driver.AppleMikeyHIDDriver          122com.apple.driver.AppleHDA          2.3.0f2com.apple.filesystems.autofs          3.0com.apple.driver.AppleMikeyDriver          2.3.0f2com.apple.driver.AppleUpstreamUserClient          3.5.10com.apple.driver.AppleBacklight          170.2.3com.apple.driver.AppleMCCSControl          1.0.33com.apple.driver.AppleIntelHD4000Graphics          8.0.0com.apple.driver.AppleSMCPDRC          1.0.0com.apple.driver.AppleLPC          1.6.0com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f8com.apple.driver.AppleSMCLMU          2.0.2d0com.apple.iokit.IOUserEthernet          1.0.0d1com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.ApplePolicyControl          3.2.6com.apple.driver.AppleIntelFramebufferCapri          8.0.0com.apple.driver.SMCMotionSensor          3.0.2d6com.apple.driver.AppleUSBTCButtons          235.4com.apple.driver.AppleUSBTCKeyboard          235.4com.apple.driver.AppleIRController          320.15com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.BootCache          34com.apple.iokit.SCSITaskUserClient          3.5.1com.apple.driver.XsanFilter          404com.apple.iokit.IOAHCIBlockStorage          2.2.0com.apple.driver.AppleFWOHCI          4.9.5com.apple.driver.AppleUSBHub          5.1.6com.apple.iokit.AppleBCM5701Ethernet          3.2.5b3com.apple.driver.AirPort.Brcm4331          600.15.20com.apple.driver.AppleSDXC          1.2.2com.apple.driver.AppleAHCIPort          2.4.0com.apple.driver.AppleUSBEHCI          5.1.5com.apple.driver.AppleUSBXHCI          1.1.0com.apple.driver.AppleEFINVRAM          1.6.1com.apple.driver.AppleSmartBatteryManager          161.0.0com.apple.driver.AppleACPIButtons          1.6com.apple.driver.AppleRTC          1.5com.apple.driver.AppleHPET          1.7com.apple.driver.AppleSMBIOS          1.9com.apple.driver.AppleACPIEC          1.6com.apple.driver.AppleAPIC          1.6com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0com.apple.nke.applicationfirewall          4.0.39com.apple.security.quarantine          2com.apple.driver.AppleIntelCPUPowerManagement          196.0.0com.apple.iokit.IOSerialFamily          10.0.6com.apple.driver.DspFuncLib          2.3.0f2com.apple.iokit.IOAudioFamily          1.8.9fc9com.apple.kext.OSvKernDSPLib          1.6com.apple.kext.triggers          1.0com.apple.driver.X86PlatformPlugin          1.0.0com.apple.driver.AppleHDAController          2.3.0f2com.apple.iokit.IOHDAFamily          2.3.0f2com.apple.driver.AppleSMBusController          1.0.10d0com.apple.driver.AppleSMBusPCI          1.0.10d0com.apple.driver.IOPlatformPluginFamily          5.2.0d16com.apple.driver.AppleBacklightExpert          1.0.4com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f8com.apple.iokit.IOFireWireIP          2.2.5com.apple.iokit.IOSurface          86.0.2com.apple.iokit.IOBluetoothFamily          4.0.9f8com.apple.driver.AppleGraphicsControl          3.2.6com.apple.iokit.IONDRVSupport          2.3.4com.apple.iokit.IOGraphicsFamily          2.3.4com.apple.driver.AppleSMC          3.1.3d11com.apple.driver.AppleUSBMultitouch          235.7com.apple.iokit.IOUSBHIDDriver          5.0.0com.apple.driver.AppleThunderboltDPInAdapter          1.8.5com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.5com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.5com.apple.driver.AppleUSBMergeNub          5.1.5com.apple.driver.AppleUSBComposite          5.0.0com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1com.apple.iokit.IOBDStorageFamily          1.7com.apple.iokit.IODVDStorageFamily          1.7.1com.apple.iokit.IOCDStorageFamily          1.7.1com.apple.iokit.IOAHCISerialATAPI          2.5.0com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1com.apple.iokit.IOFireWireFamily          4.5.5com.apple.driver.AppleThunderboltNHI          1.6.0com.apple.iokit.IOThunderboltFamily          2.0.3com.apple.iokit.IOEthernetAVBController          1.0.2b1com.apple.iokit.IO80211Family          500.15com.apple.iokit.IONetworkingFamily          3.0com.apple.iokit.IOUSBUserClient          5.0.0com.apple.iokit.IOAHCIFamily          2.2.0com.apple.iokit.IOUSBFamily          5.1.6com.apple.driver.AppleEFIRuntime          1.6.1com.apple.iokit.IOHIDFamily          1.8.0com.apple.iokit.IOSMBusFamily          1.1com.apple.security.sandbox          220com.apple.kext.AppleMatch          1.0.0d1com.apple.security.TMSafetyNet          7com.apple.driver.DiskImages          344com.apple.iokit.IOStorageFamily          1.8com.apple.driver.AppleKeyStore          28.18com.apple.driver.AppleACPIPlatform          1.6com.apple.iokit.IOPCIFamily          2.7com.apple.iokit.IOACPIFamily          1.4com.apple.kec.corecrypto          1.0

Linc Davis · Accepted Answer

The panic is caused by the "Avast" crapware. Uninstall it according to the developer&#x27;s instructions, and never install any commercial "anti-virus" product again.

chevrolet67 · Answer

I had a feeling that might be the problem... Thank you

thomas_r. · Answer

Note that, though Linc is certainly correct about Avast, and about many other anti-virus programs, his is an extreme sentiment that, like most extreme sentiments, is not entirely accurate.  Some Mac anti-virus software is quite well behaved, such as ClamXav and Sophos.  Whether you need it or not is not for someone else to tell you.  You should let your personal tastes, behaviors and requirements dictate whether you use anti-virus software, within the framework of an educated protection plan.  See my Mac Malware Guide for more information that can help you figure all that out.