OS X Yosemite - Kernel panic

Hi, I am currently running a Mid-2012 MBP with version 10.10.2 (14C109) of Yosemite.

Could anyone help me with this one.

I have tried

-Reseting NVRAM/PRAM

-Uninstalling suspected apps

-Cleaning caches

-Verifying disks

-Reinstalling Yosemite

-Memtests

-Stress Tests etc.

I thought the basis of the fault was mdworker (spotlight) from the CPU readings in the Activity Monitor but then Google Chrome helper and other apps started using up higher CPU (I believe google chrome helper is a different problem anyway)

Eventually I gave up trying to fix it because I had planned on replacing the HDD with a new Crucial M550 SSD. I swapped these out at Christmas and placed the HDD in place of the optical drive. Everything booted fine and the mac was back to normal and a lot faster. Three weeks in a kernel panic occurred again and I have been trying to get to the root of it since. Then early last week the whole system crashed and I had to start fresh. I reinstalled the OS with a version on the SSD and the HDD as backup. I re-installed the apps I need (After Effects & Premiere Pro) and got back to work. This morning it has crashed consistently everytime I start using Premiere Pro, even with no other apps open. I dont know if I need Trim with the SSD, if its spotlight thats causing it, maybe an unnecessary app.I really need help with this because I have to meet deadlines. Any feedback would be greatly appreciated.

I have logged all reports to apple but here is the latest one from yesterday.

Anonymous UUID: 4D6876B9-C6A7-089C-7A39-128469A160A0

Sat Feb 14 14:05:45 2015

*** Panic Report ***

panic(cpu 0 caller 0xffffff800361a46e): Kernel trap at 0xffffff8003ad5466, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x00000000000000b4, CR3: 0x0000000006431000, CR4: 0x00000000001626e0

RAX: 0x0000000000000080, RBX: 0x0000000000000000, RCX: 0xffffff7f8426c698, RDX: 0x0000000000000000

RSP: 0xffffff809bd0bf00, RBP: 0xffffff809bd0bf40, RSI: 0x000000004a561f92, RDI: 0xffffff8010ce5f00

R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0x0000000551b8d7e2, R11: 0x00000005512089ee

R12: 0x0000000000000003, R13: 0xffffff8010ce5f00, R14: 0xffffff800debc280, R15: 0x0000000000000000

RFL: 0x0000000000010202, RIP: 0xffffff8003ad5466, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x00000000000000b4, Error code: 0x0000000000000002, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address

0xffffff809bd0bbb0 : 0xffffff800352fe41

0xffffff809bd0bc30 : 0xffffff800361a46e

0xffffff809bd0bdf0 : 0xffffff8003636683

0xffffff809bd0be10 : 0xffffff8003ad5466

0xffffff809bd0bf40 : 0xffffff8003ad34ad

0xffffff809bd0bf80 : 0xffffff8003ad35a6

0xffffff809bd0bfb0 : 0xffffff8003614dd7

BSD process name corresponding to current thread: kernel_task

Mac OS version:

14C109

Kernel version:

Darwin Kernel Version 14.1.0: Mon Dec 22 23:10:38 PST 2014; root:xnu-2782.10.72~2/RELEASE_X86_64

Kernel UUID: DCF5C2D5-16AE-37F5-B2BE-ED127048DFF5

Kernel slide: 0x0000000003200000

Kernel text base: 0xffffff8003400000

__HIB text base: 0xffffff8003300000

System model name: MacBookPro9,2 (Mac-6F01561E16C75D06)

System uptime in nanoseconds: 22836072434

last loaded kext at 8023790042: com.apple.driver.AudioAUUC 1.70 (addr 0xffffff7f853b4000, size 32768)

loaded kexts:

com.apple.driver.AudioAUUC 1.70

com.apple.driver.ApplePlatformEnabler 2.1.7d1

com.apple.driver.AGPM 100.15.5

com.apple.driver.X86PlatformShim 1.0.0

com.apple.filesystems.autofs 3.0

com.apple.iokit.IOBluetoothSerialManager 4.3.2f6

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleHDAHardwareConfigDriver 269.25

com.apple.driver.AppleMikeyDriver 269.25

com.apple.iokit.IOBluetoothUSBDFU 4.3.2f6

com.apple.driver.AppleMuxControl 3.8.6

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.driver.AppleHDA 269.25

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleHV 1

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.2f6

com.apple.driver.AppleLPC 1.7.3

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleBacklight 170.5.0

com.apple.driver.AppleMCCSControl 1.2.11

com.apple.driver.AppleSMCLMU 2.0.7d0

com.apple.driver.AppleIntelHD4000Graphics 10.0.2

com.apple.driver.AppleIntelFramebufferCapri 10.0.2

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AppleThunderboltIP 2.0.2

com.apple.driver.SMCMotionSensor 3.0.4d1

com.apple.driver.AppleUSBTCButtons 240.2

com.apple.driver.AppleIRController 327.5

com.apple.driver.AppleUSBTCKeyEventDriver 240.2

com.apple.driver.AppleUSBTCKeyboard 240.2

com.apple.driver.CoreStorageFsck 471.10.6

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.7.0

com.apple.driver.AppleFWOHCI 5.5.2

com.apple.driver.AppleUSBHub 705.4.2

com.apple.driver.AppleSDXC 1.6.5

com.apple.driver.AppleAHCIPort 3.1.0

com.apple.iokit.AppleBCM5701Ethernet 10.1.3

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.AirPort.Brcm4360 910.26.12

com.apple.driver.AppleUSBXHCI 710.4.11

com.apple.driver.AppleUSBEHCI 705.4.14

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.AppleGraphicsControl 3.8.6

com.apple.driver.DspFuncLib 269.25

com.apple.kext.OSvKernDSPLib 1.15

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.2f6

com.apple.iokit.IOBluetoothFamily 4.3.2f6

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.driver.AppleSMBusController 1.0.13d1

com.apple.iokit.IOSurface 97

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.iokit.IOAcceleratorFamily2 156.6

com.apple.AppleGraphicsDeviceControl 3.8.6

com.apple.driver.IOPlatformPluginFamily 5.8.1d38

com.apple.iokit.IOUSBUserClient 705.4.0

com.apple.iokit.IOFireWireIP 2.2.6

com.apple.driver.AppleHDAController 269.25

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOHDAFamily 269.25

com.apple.iokit.IOAudioFamily 203.3

com.apple.vecLib.kext 1.2.0

com.apple.driver.AppleThunderboltEDMSink 4.0.2

com.apple.driver.AppleThunderboltDPOutAdapter 4.0.6

com.apple.driver.AppleSMC 3.1.9

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.3

com.apple.driver.AppleUSBMultitouch 245.2

com.apple.iokit.IOUSBHIDDriver 705.4.0

com.apple.driver.CoreStorage 471.10.6

com.apple.driver.AppleUSBMergeNub 705.4.0

com.apple.driver.AppleUSBComposite 705.4.9

com.apple.driver.AppleThunderboltDPInAdapter 4.0.6

com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.iokit.IOFireWireFamily 4.5.6

com.apple.driver.AppleThunderboltNHI 3.1.7

com.apple.iokit.IOThunderboltFamily 4.2.1

com.apple.iokit.IOAHCIFamily 2.7.5

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.iokit.IO80211Family 710.55

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOUSBFamily 710.4.14

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.Libm 1

com.apple.kec.pthread 1

System Profile:

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF5), Broadcom BCM43xx 1.0 (7.15.159.13.12)

Bluetooth: Version 4.3.2f6 15235, 3 services, 27 devices, 1 incoming serial ports

Thunderbolt Bus: MacBook Pro, Apple Inc., 25.1

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A54463235363634485A2D3147364D3120

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A54463235363634485A2D3147364D3120

USB Device: Hub

USB Device: FaceTime HD Camera (Built-in)

USB Device: Hub

USB Device: Hub

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Apple Internal Keyboard / Trackpad

USB Device: IR Receiver

Serial ATA Device: Crucial_CT256M550SSD1, 256.06 GB

Serial ATA Device: APPLE HDD HTS547550A9E384, 500.11 GB

Model: MacBookPro9,2, BootROM MBP91.00D3.B08, 2 processors, Intel Core i5, 2.5 GHz, 4 GB, SMC 2.2f44

Network Service: Wi-Fi, AirPort, en1

Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In

THANK you for this post! I had upgraded my Macbook Pro to Yosemite last week, and had no problems at first, but suddenly today when I restarted, it went into endless rebooting and kernel panics. I saw your post and uninstalled AirDisplay, and now it appears to be OK. I'm just wondering: was this a permanent fix for you, or did the rebooting/kernel panic problem come back?

Hi Anne.ee, another member suggested that I should reseat my RAM, it has significantly reduced the frequency of my kernel panics, I have only reported one in the past two weeks.

Mid 2010 Macbook Pro Yosemite keeps getting kernel panics every time I boot. Any help will be highly appreciated.

Wed Mar 11 19:49:26 2015

*** Panic Report ***

Machine-check capabilities: 0x0000000000000806

family: 6 model: 23 stepping: 10 microcode: 2567

signature: 0x1067a

Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz

6 error-reporting banks

Processor 0: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC0_STATUS(0x401): 0xf200084000000800

IA32_MC5_STATUS(0x415): 0xf2002610340c0400

Processor 1: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC0_STATUS(0x401): 0xf200084000000800

IA32_MC5_STATUS(0x415): 0xf200261010040400

panic(cpu 0 caller 0xffffff8012a1ae0a): "Machine Check at 0xffffff7f93f5c969, registers:\n" "CR0: 0x000000008001003b, CR2: 0xffffff80ed43e000, CR3: 0x0000000015c3a000, CR4: 0x0000000000002660\n" "RAX: 0xffffff810d4dd020, RBX: 0xffffff80dd367000, RCX: 0x000000006b259d19, RDX: 0x0000000000000000\n" "RSP: 0xffffff80ed42bdc0, RBP: 0xffffff80ed42be60, RSI: 0xffffff80239ede80, RDI: 0xffffff80dd367000\n" "R8: 0x0000007fdc02a7ff, R9: 0xffffff80ed42c068, R10: 0x0000000087a7b18a, R11: 0x00000000870f1ff8\n" "R12: 0xffffff8024025a00, R13: 0x00000000870f28e3, R14: 0xffffff80dd367000, R15: 0x0000000000000000\n" "RFL: 0x0000000000010086, RIP: 0xffffff7f93f5c969, CS: 0x0000000000000008, SS: 0x0000000000000000\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2782.10.73/osfmk/i386/trap_native.c: 168

Backtrace (CPU 0), Frame : Return Address

0xffffff80ed437cf0 : 0xffffff801292fe41

0xffffff80ed437d70 : 0xffffff8012a1ae0a

0xffffff80ed437ed0 : 0xffffff8012a36f2f

0xffffff80ed42be60 : 0xffffff7f93f5c93e

0xffffff80ed42be80 : 0xffffff8012ed90f2

0xffffff80ed42bec0 : 0xffffff8012ef8193

0xffffff80ed42bf00 : 0xffffff7f95086add

0xffffff80ed42bf50 : 0xffffff7f950b8bd4

0xffffff80ed42bf60 : 0xffffff7f950c0d0b

0xffffff80ed42bf80 : 0xffffff8012a198ab

0xffffff80ed42bfd0 : 0xffffff8012a36849

0xffffff8112ccbf70 : 0xffffff8012a13af8

Kernel Extensions in backtrace:

com.apple.driver.AppleACPIPlatform(3.1)[D4068745-B4F6-3559-BB69-A15F0B4F92B4]@0 xffffff7f950b2000->0xffffff7f95110fff

dependency: com.apple.iokit.IOACPIFamily(1.4)[70E2B65E-A91A-3522-A1A0-79FD63EABB4C]@0xfffff f7f933f7000

dependency: com.apple.iokit.IOPCIFamily(2.9)[56AD16B5-4F29-3F74-93E7-D492B3966DE2]@0xffffff 7f93124000

com.apple.driver.AppleAPIC(1.7)[E0CFC402-9876-3C6D-8737-C9EB3655440D]@0xffffff7 f95085000->0xffffff7f95087fff

com.apple.driver.AppleUSBEHCI(705.4.14)[B343ACE6-4ED9-365F-8F8D-9E2863B80C26]@0 xffffff7f93f59000->0xffffff7f93f71fff

dependency: com.apple.iokit.IOUSBFamily(710.4.14)[4030C18E-76A0-37E6-9612-2C901F789E41]@0xf fffff7f93583000

dependency: com.apple.iokit.IOPCIFamily(2.9)[56AD16B5-4F29-3F74-93E7-D492B3966DE2]@0xffffff 7f93124000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

Not yet set

Kernel version:

Darwin Kernel Version 14.1.0: Thu Feb 26 19:26:47 PST 2015; root:xnu-2782.10.73~1/RELEASE_X86_64

Kernel UUID: 270413F7-3B44-3602-894F-AC0D392FCF8E

Kernel slide: 0x0000000012600000

Kernel text base: 0xffffff8012800000

__HIB text base: 0xffffff8012700000

System model name: MacBookPro7,1 (Mac-F222BEC8)

System uptime in nanoseconds: 113542916256

last loaded kext at 1961071778: com.apple.driver.AppleIRController 327.5 (addr 0xffffff7f94cb5000, size 28672)

loaded kexts:

at.obdev.nke.LittleSnitch 4234

com.apple.driver.AppleIRController 327.5

com.apple.driver.AppleUSBTCKeyEventDriver 240.2

com.apple.driver.AppleUSBTCKeyboard 240.2

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.AppleUSBCardReader 3.5.1

com.apple.iokit.SCSITaskUserClient 3.7.3

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.7.0

com.apple.iokit.AppleBCM5701Ethernet 10.1.3

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.AppleUSBHub 705.4.2

com.apple.driver.AppleFWOHCI 5.5.2

com.apple.driver.AppleUSBOHCI 656.4.1

com.apple.driver.AppleUSBEHCI 705.4.14

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleAHCIPort 3.1.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleACPIButtons 3.1

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.driver.AppleUSBMultitouch 245.2

com.apple.iokit.IOUSBHIDDriver 705.4.0

com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.3

com.apple.iokit.IOUSBMassStorageClass 3.7.1

com.apple.driver.AppleUSBMergeNub 705.4.0

com.apple.driver.AppleUSBComposite 705.4.9

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.3

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.6.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.3

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IO80211Family 710.55

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOFireWireFamily 4.5.6

com.apple.driver.AppleMCP89RootPortPM 1.11

com.apple.driver.NVSMU 2.2.9

com.apple.iokit.IOUSBFamily 710.4.14

com.apple.iokit.IOAHCIFamily 2.7.5

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.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

Model: MacBookPro7,1, BootROM MBP71.0039.B0E, 2 processors, Intel Core 2 Duo, 2.4 GHz, 8 GB, SMC 1.62f7

Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x04CD, 0x46332D38353030434C372D34474253510000

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x04CD, 0x46332D38353030434C372D34474253510000

Bluetooth: Version 4.3.2f6 15235, 3 services, 27 devices, 1 incoming serial ports

Serial ATA Device: SAMSUNG HN-M750MBB, 750.16 GB

Serial ATA Device: HL-DT-ST DVDRW GS23N

USB Device: 802.11n WLAN Adapter

USB Device: Built-in iSight

USB Device: Internal Memory Card Reader

USB Device: BRCM2046 Hub

USB Device: Bluetooth USB Host Controller

USB Device: IR Receiver

USB Device: Apple Internal Keyboard / Trackpad

Thunderbolt Bus:

This worked great for me:

I rebooted in recovery mode and fixed permissions and repaired the disk.

I then reset the PRAM as below (taken from online).

Here's how to reset your PRAM:

1. Shut down your machine. Yes, all the way down, not sleep or logging out.
2. Press the power button and then press command-option-p-r. ...
3. Hold those keys down until your Mac reboots again and you here the startup chime.
4. Let go of the keys and let your Mac reboot normally.

I had the same issue with my 2011 MacBookPro. After numerous attempts at resolving the issue by repairing the disk and disk permissions (many many problems were reported) and by removing all traces of PGP Disk Encryption Desktop to no avail, I tried a clean install, booting from a Yosemite Installation USB stick that I had prepared earlier (see http://www.macworld.com/article/2367748/how-to-make-a-bootable-os-x-10-10-yosemi te-install-drive.html - Option 1). This worked OK - but not entirely. I selected to use File Vault and my system ran extremely slowly but I suspect/hope this was due to background encryption. I then tried a reboot from the built-in HDD and the system held permanently at 50% during the boot load process. This problem was cured (thanks to DlacVal) by clearing the NVRAM (boot with Cmd+Alt+P+R) then rebooting in Safe Mode (boot with Shift) then rebooting normally. I came very close to giving up and reverting to Mavericks but was persuaded by the new GUI features. Biggest lesson for me was to prepare a full Time Machine backup on Mavericks before attempting the upgrade. More to the point, however, Apple Macs used to be the world's most intuitive PC - not any more, which is a crying shame!

Removing PGP drivers did not help, but it's always a good idea to remove disk-level drivers before any update.

To fix my panic loop on installation, I booted to recovery mode, ran Disk Utility, repaired disk permissions and verified the disk. Then restarted, zapped PRAM, unplugged all external devices, ejected a CD that was in the drive, and now it's starting.

So… one of those things did the trick. Shame on Apple for this bug still not being fixed.

I started getting the random reboots about two months ago. I have a Mid-2010 15" MBP. The problem is not caused by Yosemite... I was running Mavericks when the rebooting started, but it continues after I upgraded. My hard drive is encrypted with FileVault.

I'm going to try resetting the memory to see if that helps.

Hard to tell, but I wonder if encrypted hard drive is a common denominator for everyone having this problem.

~Mike

My September 2011 15" MacBook Pro was returned in October 2014 under AppleCare because of video issues. The logic board was replaced and the video

problems were no more. However, less than two weeks ago it was again returned to an Apple Authorised Repairer under the Apple Repair Programme which only applies to 15" and 17" built in 2011.

The UK company who Apple use ran tests and said they couldn't find any problems and it was returned to me. Since then, it shuts down and restarts at least 3 times per day with the dreaded 'kernel panic' screen.

Under the Apple Repair Programme, Apple said it would replace logic boards on 2011 MBP's with any of the following problems, copied from their website :

Apple has determined that a small percentage of MacBook Pro systems may exhibit distorted video, no video, or unexpected system restarts. These MacBook Pro systems were sold between February 2011 and December 2013.

Apple or an Apple Authorized Service Provider will repair affected MacBook Pro systems, free of charge. See below for details on affected models and service options.

Symptoms

An affected MacBook Pro may display one or more of the following symptoms:

• Distorted or scrambled video on the computer screen
• No video on the computer screen (or external display) even though the computer is on
• Computer restarts unexpectedly

Products affected

• 15-inch and 17-inch MacBook Pro models manufactured in 2011
• 15-inch MacBook Pro with Retina models manufactured from Mid 2012 to Early 2013

I have been in touch with the UK Apple Authorised Service Provider (AASP) and explained that my MBP is constantly shutting down & restarting spontaneously with the 'kernel panic' screen. In the symptoms above, Apple admit that affected Macs may display one or more of the symptoms. Mine falls into the category :

• Computer restarts unexpectedly, but the AASP refuse to change my logic board despite admitting that the new logic board fitted in 2014 under Applecare

could still have a fault as the logic board they fitted was in stock, so possibly faulty.

Does anyone know where I should go from here, or suggest what needs to be done to correct this troublesome fault which only seemed to appear whenI upgraded from 10.9.5 to 10.10.3.

Thanks in advance. I have 2 back-ups for my 15" MBP, but not with Time Machine; I use Carbon Copy Cloner to clone back-ups.

Have tested my Mac with TechTool Pro 8 which shows no hardware/software problems and Disk Warrior, but neither show any corrupt files. Help !!!

Jim (Mac user since 1992)

MacBook Pro 15" ( Sept 2011)..........the faulty one)

MacBook Pro 13" ( my wife's running on 10.9.5)

iPad Mini on iOS 8.3 (works fine)

Ancient G4 20" iMac running on 10.4.11( again with no problems)

My September 2011 15" MacBook Pro was returned in October 2014 under AppleCare because of video issues. The logic board was replaced and the video

problems were no more. However, less than two weeks ago it was again returned to an Apple Authorised Repairer under the Apple Repair Programme which only applies to 15" and 17" built in 2011.

The UK company who Apple use ran tests and said they couldn't find any problems and it was returned to me. Since then, it shuts down and restarts at least 3 times per day with the dreaded 'kernel panic' screen.

Under the Apple Repair Programme, Apple said it would replace logic boards on 2011 MBP's with any of the following problems, copied from their website :

Apple has determined that a small percentage of MacBook Pro systems may exhibit distorted video, no video, or unexpected system restarts. These MacBook Pro systems were sold between February 2011 and December 2013.

Apple or an Apple Authorized Service Provider will repair affected MacBook Pro systems, free of charge. See below for details on affected models and service options.

Symptoms

An affected MacBook Pro may display one or more of the following symptoms:

• Distorted or scrambled video on the computer screen
• No video on the computer screen (or external display) even though the computer is on
• Computer restarts unexpectedly

Products affected

• 15-inch and 17-inch MacBook Pro models manufactured in 2011
• 15-inch MacBook Pro with Retina models manufactured from Mid 2012 to Early 2013

I have been in touch with the UK Apple Authorised Service Provider (AASP) and explained that my MBP is constantly shutting down & restarting spontaneously with the 'kernel panic' screen. In the symptoms above, Apple admit that affected Macs may display one or more of the symptoms. Mine falls into the category :

• Computer restarts unexpectedly, but the AASP refuse to change my logic board despite admitting that the new logic board fitted in 2014 under Applecare

could still have a fault as the logic board they fitted was in stock, so possibly faulty.

Does anyone know where I should go from here, or suggest what needs to be done to correct this troublesome fault which only seemed to appear whenI upgraded from 10.9.5 to 10.10.3. Help!!!

Thanks in advance.

Jim (Mac user since 1992)

MacBook Pro 15" ( Sept 2011)..........the faulty one)

MacBook Pro 13" ( my wife's running on 10.9.5)

iPad Mini on iOS 8.3 (works fine)

Ancient G4 20" iMac running on 10.4.11( again with no problems)

I know this is many months later, been searching support for similar issue, I can not restart in safe mode. that is starting and holding cmd + R, what else can I do? I have install dvd in external drive, how do I boot from the drive? thanks

thanks man, worked like a charm!

My panic problem showed up after i installed a SSD and OS 10.10. I finally found that it was the sleep state that killed it. With the SSD, sleep is not a big deal. turned sleep to never and no problems anymore. :-) screen sleep is ok.

btw, my old mac is fast again with the memory and SSD!

mid 2009 macbook pro, 8gb ram, OWC SSD 240

i use to have the same problem. after reading the posts and comments here , i have removed (and keep removing every time)this driver , as someone else suggested in this forum " Navigate to ~/Library/Preferences/ByHost/, delete any files that contain "windowserver," and reboot the machine. The procedure may need to be repeated if you regularly connect to an external monitor once it is also connected."

if you don't know how to find it just use finder.

the kp have stopped, i am 5 days now without even 1 restart.

if someone knows how to make an automator command about that ...it would be very much appreciated. pardon my english,not my native language.!

MacBook Pro (15-inch, Mid 2010) 2.4 i5 8gb 1067 dd3

just an update.i have also uninstalled "nosleep" and everything that came came with that crap.

i have now several days without k.p!