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Suddenly my Mac started to have kernel panics, about 1-2 a day.

I am running latest OS X 10.8.2 on a 15-inch, Early 2011 MacBook Pro 8GB RAM with Graphics AMD Radeon HD 6750M 1024 MB, Intel SSD + HD.

I mention I did no recent hardware

Interval Since Last Panic Report: 274133 sec Anonymous UUID: 0539B83C-471F-8386-735D-58B2076B237F

Tue Nov 6 07:10:56 2012 panic(cpu 5 caller 0xffffff802aab7bd5): Kernel trap at 0xffffff802aa874b3, type 14=page fault, registers: CR0: 0x000000008001003b, CR2: 0x0000000000000020, CR3: 0x000000002d297000, CR4: 0x00000000000606e0 RAX: 0x0000000000000020, RBX: 0xffffff8031e12980, RCX: 0x0000000000000020, RDX: 0x00000000000018e9 RSP: 0xffffff811ab33dc0, RBP: 0xffffff811ab33de0, RSI: 0x000000002245cdc0, RDI: 0xffffff802ea02bc0 R8: 0x0000000000000001, R9: 0x0000000000000000, R10: 0xffffff802b0bdc25, R11: 0x00000000ffffff01 R12: 0x000000000001978f, R13: 0x0000000000000045, R14: 0xffffff802ea02bc0, R15: 0xffffff802d9f6000 RFL: 0x0000000000010203, RIP: 0xffffff802aa874b3, CS: 0x0000000000000008, SS: 0x0000000000000010 Fault CR2: 0x0000000000000020, Error code: 0x0000000000000000, Fault CPU: 0x5

Backtrace (CPU 5), Frame : Return Address 0xffffff811ab33a60 : 0xffffff802aa1d626 0xffffff811ab33ad0 : 0xffffff802aab7bd5 0xffffff811ab33ca0 : 0xffffff802aace4ed 0xffffff811ab33cc0 : 0xffffff802aa874b3 0xffffff811ab33de0 : 0xffffff802aa7e01f 0xffffff811ab33f70 : 0xffffff802aa7ecf2 0xffffff811ab33fb0 : 0xffffff802aab26b7

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: 0x000000002a800000 Kernel text base: 0xffffff802aa00000 System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

System uptime in nanoseconds: 75031661011235 last loaded kext at 580756463496: com.apple.filesystems.smbfs 1.8 (addr 0xffffff7facd64000, size 229376) last unloaded kext at 241791295869: com.apple.driver.AppleUSBUHCI 5.2.5 (addr 0xffffff7fab3c1000, size 65536) loaded kexts: com.citrix.driver.net6im 1.1.9 com.deterministicnetworks.driver.dne 1.0.18 com.deterministicnetworks.driver.dniregistry 1.0.7 com.apple.filesystems.smbfs 1.8 com.apple.driver.AudioAUUC 1.60 com.apple.driver.AppleHWSensor 1.9.5d0 com.apple.filesystems.autofs 3.0 com.apple.driver.AppleMikeyHIDDriver 122 com.apple.iokit.IOBluetoothSerialManager 4.0.9f33 com.apple.driver.AppleHDA 2.3.1f2 com.apple.driver.AGPM 100.12.69 com.apple.driver.AppleMikeyDriver 2.3.1f2 com.apple.iokit.IOUserEthernet 1.0.0d1 com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.0.9f33 com.apple.Dont_Steal_Mac_OS_X 7.0.0 com.apple.driver.AppleUpstreamUserClient 3.5.10 com.apple.kext.AMDFramebuffer 8.0.0 com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0 com.apple.driver.ApplePolicyControl 3.2.11 com.apple.driver.AppleSMCLMU 2.0.2d0 com.apple.driver.AppleSMCPDRC 1.0.0 com.apple.driver.AppleMCCSControl 1.0.33 com.apple.driver.AppleLPC 1.6.0 com.apple.AMDRadeonAccelerator 1.0.0 com.apple.driver.AppleMuxControl 3.2.11 com.apple.driver.AppleIntelHD3000Graphics 8.0.0 com.apple.driver.AppleIntelSNBGraphicsFB 8.0.0 com.apple.driver.SMCMotionSensor 3.0.2d6 com.apple.driver.AppleUSBTCButtons 235.4 com.apple.driver.AppleUSBTCKeyboard 235.4 com.apple.driver.AppleIRController 320.15 com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1 com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 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.AppleSDXC 1.2.2 com.apple.iokit.AppleBCM5701Ethernet 3.2.5b3 com.apple.driver.AppleFWOHCI 4.9.6 com.apple.driver.AirPort.Brcm4331 602.15.22 com.apple.driver.AppleAHCIPort 2.4.1 com.apple.driver.AppleUSBEHCI 5.4.0 com.apple.driver.AppleEFINVRAM 1.6.1 com.apple.driver.AppleSmartBatteryManager 161.0.0 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.AppleIntelCPUPowerManagementClient 196.0.0 com.apple.nke.applicationfirewall 4.0.39 com.apple.security.quarantine 2 com.apple.driver.AppleIntelCPUPowerManagement 196.0.0 com.apple.kext.triggers 1.0 com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.1 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.iokit.IOSurface 86.0.3 com.apple.iokit.IOBluetoothFamily 4.0.9f33 com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.0.9f33 com.apple.iokit.IOFireWireIP 2.2.5 com.apple.driver.IOPlatformPluginLegacy 1.0.0 com.apple.driver.AppleHDAController 2.3.1f2 com.apple.iokit.IOHDAFamily 2.3.1f2 com.apple.driver.AppleSMBusController 1.0.10d0 com.apple.driver.IOPlatformPluginFamily 5.2.0d16 com.apple.driver.AppleSMBusPCI 1.0.10d0 com.apple.iokit.IOAcceleratorFamily 19.0.26 com.apple.kext.AMD6000Controller 8.0.0 com.apple.kext.AMDSupport 8.0.0 com.apple.driver.AppleGraphicsControl 3.2.11 com.apple.driver.AppleBacklightExpert 1.0.4 com.apple.iokit.IONDRVSupport 2.3.5 com.apple.iokit.IOGraphicsFamily 2.3.5 com.apple.driver.AppleSMC 3.1.4d2 com.apple.driver.AppleThunderboltDPInAdapter 1.8.5 com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.5 com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.5 com.apple.driver.AppleUSBMultitouch 235.7 com.apple.iokit.IOUSBHIDDriver 5.2.5 com.apple.driver.AppleUSBMergeNub 5.2.5 com.apple.driver.AppleUSBComposite 5.2.5 com.apple.driver.AppleThunderboltNHI 1.6.0 com.apple.iokit.IOThunderboltFamily 2.1.1 com.apple.iokit.IOUSBUserClient 5.2.5 com.apple.iokit.IOEthernetAVBController 1.0.2b1 com.apple.iokit.IOFireWireFamily 4.5.5 com.apple.iokit.IO80211Family 500.15 com.apple.iokit.IONetworkingFamily 3.0 com.apple.iokit.IOAHCIFamily 2.2.1 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: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.3 GHz, 8 GB, SMC 1.69f3 Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x029E, 0x434D534F344758334D314131333333433920 Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x029E, 0x434D534F344758334D314131333333433920 AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.81.22) Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports Network Service: Wi-Fi, AirPort, en1 Serial ATA Device: INTEL SSDSC2CT180A3, 180.05 GB Serial ATA Device: TOSHIBA MK7559GSXF, 750.16 GB USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2 USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3 USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 3 USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2 USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0252, 0xfa120000 / 5 USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4 USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 8

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What software is running at the time of the panic? –  Gerry Nov 6 '12 at 8:01
    
Nothing in particular, I found no pattern regarding what I was running, usually Chrome, Safari, Office 2011, Skype, sometimes IntelliJ IDEA, iTerm2,... –  sorin Nov 6 '12 at 8:08
    
Use Terminal to run the command shown at pastebin.com/PjBZgSba then restart the Mac. You'll get verbose boot, verbose shut down and more importantly: the next .panic file will show more information in the backtrace. –  Graham Perrin May 2 at 17:39

2 Answers 2

From my experience, these frequent kernel panics can result from bad memory, either the chips or their slots.

I suggest you take out one of the two memory modules, test it, change out the memory module with the one you took out, test it, then repeat for the second slot. Essentially, test every combination of modules and slots to try and see if there is a problem caused by faulty memory.

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I also have an early 2011 MacBook Pro, but it's a 13 inch i5 with 8GB of RAM and I also got these kernal panics once. Then, they all of a sudden just stopped happening. It could have been my fresh install, but other than that I have no idea.

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