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Kernel panic after update to Mountain Lion

since I updated to mountain lion I have up to three kernel panics per week.

Before everything worked without any problems



Interval Since Last Panic Report: 31958 sec

Panics Since Last Report: 1

Anonymous UUID: B6BCD05D-B926-ECBB-B784-AA75E640237E



Fri Jun 21 21:03:46 2013

panic(cpu 0 caller 0xffffff800e8b8655): Kernel trap at 0xffffff800e887ca3, type 13=general protection, registers:

CR0: 0x000000008001003b, CR2: 0x00007fce3842eac0, CR3: 0x00000000082a3000, CR4: 0x0000000000000660

RAX: 0xfbffff80154bbcd8, RBX: 0xffffff80154bbcb8, RCX: 0xfbffff80154bbcd8, RDX: 0x0000000000093aff

RSP: 0xffffff80fec4bbf0, RBP: 0xffffff80fec4bc10, RSI: 0x000000002b99cde0, RDI: 0xffffff8012f03100

R8: 0xffffff8026466c60, R9: 0xffffff800eebd0e0, R10: 0x0000000151024000, R11: 0x00000000ffffff00

R12: 0x000000000000e201, R13: 0xffffff80154b9870, R14: 0xffffff8012f03100, R15: 0xffffff8011efc000

RFL: 0x0000000000010286, RIP: 0xffffff800e887ca3, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x00007fce3842eac0, Error code: 0x0000000000000000, Fault CPU: 0x0



Backtrace (CPU 0), Frame : Return Address

0xffffff80fec4b890 : 0xffffff800e81d626

0xffffff80fec4b900 : 0xffffff800e8b8655

0xffffff80fec4bad0 : 0xffffff800e8ce17d

0xffffff80fec4baf0 : 0xffffff800e887ca3

0xffffff80fec4bc10 : 0xffffff800e8893a8

0xffffff80fec4bc30 : 0xffffff800e8894e8

0xffffff80fec4bc70 : 0xffffff800e8774d5

0xffffff80fec4bcd0 : 0xffffff800e87c637

0xffffff80fec4bd00 : 0xffffff800e876524

0xffffff80fec4bd30 : 0xffffff800e8759b0

0xffffff80fec4bd70 : 0xffffff800e86737c

0xffffff80fec4be60 : 0xffffff800e86b0e0

0xffffff80fec4be90 : 0xffffff800e835d03

0xffffff80fec4bed0 : 0xffffff800eb566d7

0xffffff80fec4bf40 : 0xffffff800eb56479

0xffffff80fec4bf50 : 0xffffff800ebe16aa

0xffffff80fec4bfb0 : 0xffffff800e8ce9c3



BSD process name corresponding to current thread: WebProcess



Mac OS version:

12E55



Kernel version:

Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64

Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36

Kernel slide: 0x000000000e600000

Kernel text base: 0xffffff800e800000

System model name: iMac11,3 (Mac-F2238BAE)



System uptime in nanoseconds: 12415363324086

last loaded kext at 264030811353: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f909bd000, size 65536)

last unloaded kext at 324661816793: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f909bd000, size 57344)

loaded kexts:

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AppleBluetoothMultitouch 75.19

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AGPM 100.12.87

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleHDA 2.3.7fc4

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleMikeyDriver 2.3.7fc4

com.apple.kext.AMDFramebuffer 8.1.2

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.driver.AppleBacklight 170.2.5

com.apple.driver.AppleMCCSControl 1.1.11

com.apple.AMDRadeonAccelerator 1.0.8

com.apple.driver.AppleLPC 1.6.0

com.apple.iokit.IOBluetoothSerialManager 4.1.4f2

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.ApplePolicyControl 3.4.5

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleUSBCardReader 3.1.7

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.iokit.SCSITaskUserClient 3.5.5

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.3.1

com.apple.driver.AppleUSBHub 5.5.5

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.iokit.AppleBCM5701Ethernet 3.6.1b4

com.apple.driver.AirPort.Atheros40 600.72.2

com.apple.driver.AppleAHCIPort 2.5.2

com.apple.driver.AppleUSBEHCI 5.5.0

com.apple.driver.AppleEFINVRAM 1.7

com.apple.driver.AppleACPIButtons 1.7

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.7

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2.1

com.apple.driver.AppleIntelCPUPowerManagement 196.0.0

com.apple.driver.IOBluetoothHIDDriver 4.1.4f2

com.apple.driver.AppleMultitouchDriver 235.29

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 2.3.7fc4

com.apple.iokit.IOAudioFamily 1.8.9fc11

com.apple.kext.OSvKernDSPLib 1.6

com.apple.iokit.IOSurface 86.0.4

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.driver.AppleSMBusController 1.0.11d0

com.apple.driver.AppleSMBusPCI 1.0.11d0

com.apple.iokit.IOAcceleratorFamily 74.5.1

com.apple.kext.AMD5000Controller 8.1.2

com.apple.kext.AMDSupport 8.1.2

com.apple.driver.AppleHDAController 2.3.7fc4

com.apple.iokit.IOHDAFamily 2.3.7fc4

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.iokit.IOBluetoothFamily 4.1.4f2

com.apple.driver.AppleGraphicsControl 3.4.5

com.apple.iokit.IONDRVSupport 2.3.7

com.apple.iokit.IOGraphicsFamily 2.3.7

com.apple.driver.AppleSMC 3.1.4d2

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.3.0d51

com.apple.driver.AppleUSBHIDKeyboard 170.2

com.apple.driver.AppleHIDKeyboard 170.2

com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.5

com.apple.iokit.IOUSBMassStorageClass 3.5.1

com.apple.iokit.IOUSBHIDDriver 5.2.5

com.apple.driver.AppleUSBMergeNub 5.5.5

com.apple.driver.AppleUSBComposite 5.2.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.5.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5

com.apple.iokit.IOUSBUserClient 5.5.5

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.iokit.IO80211Family 530.4

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOAHCIFamily 2.3.1

com.apple.iokit.IOUSBFamily 5.6.0

com.apple.driver.AppleEFIRuntime 1.7

com.apple.iokit.IOHIDFamily 1.8.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220.3

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 345

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.7

com.apple.iokit.IOPCIFamily 2.7.3

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

System Profile:

Model: iMac11,3, BootROM IM112.0057.B01, 4 processors, Intel Core i7, 2.93 GHz, 8 GB, SMC 1.59f2

Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1024 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533641465238432D48392020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533641465238432D48392020

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.72.0-P2P

Bluetooth: Version 4.1.4f2 12041, 2 service, 18 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: Hitachi HDS722020ALA330, 2 TB

Serial ATA Device: HL-DT-STDVDRW GA32N

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfa130000 / 5

USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0xfa132000 / 7

USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa120000 / 4

USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 6

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2

USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0xfd110000 / 4

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3






Interval Since Last Panic Report: 33087 sec

Panics Since Last Report: 3

Anonymous UUID: B6BCD05D-B926-ECBB-B784-AA75E640237E



Mon Jun 17 20:07:26 2013

panic(cpu 4 caller 0xffffff80104b8655): Kernel trap at 0xffffff8010487eec, type 13=general protection, registers:

CR0: 0x0000000080010033, CR2: 0x0000000111275000, CR3: 0x0000000031e96000, CR4: 0x0000000000000660

RAX: 0x0000000000000001, RBX: 0xfbffff8016ac3780, RCX: 0xffffff803073e6b0, RDX: 0x0000000000000821

RSP: 0xffffff81015abb10, RBP: 0xffffff81015abb30, RSI: 0x000000002b99cde0, RDI: 0xffffff8014b71c78

R8: 0xffffff81015abc0c, R9: 0x0000000000000241, R10: 0x0000000000001002, R11: 0x0000000111868000

R12: 0xffffff8014b71c78, R13: 0xffffff8034ef71e0, R14: 0xffffff8034ef71e0, R15: 0x0000000000335000

RFL: 0x0000000000010282, RIP: 0xffffff8010487eec, CS: 0x0000000000000008, SS: 0x0000000000000000

Fault CR2: 0x0000000111275000, Error code: 0x0000000000000000, Fault CPU: 0x4



Backtrace (CPU 4), Frame : Return Address

0xffffff81015ab7b0 : 0xffffff801041d626

0xffffff81015ab820 : 0xffffff80104b8655

0xffffff81015ab9f0 : 0xffffff80104ce17d

0xffffff81015aba10 : 0xffffff8010487eec

0xffffff81015abb30 : 0xffffff801047bfe4

0xffffff81015abbd0 : 0xffffff801045ea77

0xffffff81015abbf0 : 0xffffff801045bd59

0xffffff81015abc30 : 0xffffff801045f703

0xffffff81015abd90 : 0xffffff80104630ca

0xffffff81015abf20 : 0xffffff80104b8aa0

0xffffff81015abfb0 : 0xffffff80104ce0a1



BSD process name corresponding to current thread: mdworker



Mac OS version:

12E55



Kernel version:

Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64

Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36

Kernel slide: 0x0000000010200000

Kernel text base: 0xffffff8010400000

System model name: iMac11,3 (Mac-F2238BAE)



System uptime in nanoseconds: 691233667480

last loaded kext at 257503626606: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f925cd000, size 65536)

last unloaded kext at 359016615563: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f925cd000, size 57344)

loaded kexts:

com.apple.driver.AppleBluetoothMultitouch 75.19

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AudioAUUC 1.60

com.apple.iokit.IOBluetoothSerialManager 4.1.4f2

com.apple.driver.AGPM 100.12.87

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AppleHDA 2.3.7fc4

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.filesystems.autofs 3.0

com.apple.kext.AMDFramebuffer 8.1.2

com.apple.driver.AppleMikeyDriver 2.3.7fc4

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.AMDRadeonAccelerator 1.0.8

com.apple.driver.AppleLPC 1.6.0

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.ApplePolicyControl 3.4.5

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleBacklight 170.2.5

com.apple.driver.AppleMCCSControl 1.1.11

com.apple.driver.AppleUSBCardReader 3.1.7

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.iokit.SCSITaskUserClient 3.5.5

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.3.1

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.driver.AppleUSBHub 5.5.5

com.apple.iokit.AppleBCM5701Ethernet 3.6.1b4

com.apple.driver.AirPort.Atheros40 600.72.2

com.apple.driver.AppleAHCIPort 2.5.2

com.apple.driver.AppleUSBEHCI 5.5.0

com.apple.driver.AppleEFINVRAM 1.7

com.apple.driver.AppleACPIButtons 1.7

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.7

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2.1

com.apple.driver.AppleIntelCPUPowerManagement 196.0.0

com.apple.driver.IOBluetoothHIDDriver 4.1.4f2

com.apple.driver.AppleMultitouchDriver 235.29

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.driver.DspFuncLib 2.3.7fc4

com.apple.iokit.IOAudioFamily 1.8.9fc11

com.apple.kext.OSvKernDSPLib 1.6

com.apple.kext.triggers 1.0

com.apple.iokit.IOSurface 86.0.4

com.apple.iokit.IOBluetoothFamily 4.1.4f2

com.apple.driver.AppleSMBusPCI 1.0.11d0

com.apple.iokit.IOAcceleratorFamily 74.5.1

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.driver.AppleHDAController 2.3.7fc4

com.apple.iokit.IOHDAFamily 2.3.7fc4

com.apple.driver.AppleSMC 3.1.4d2

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.3.0d51

com.apple.kext.AMD5000Controller 8.1.2

com.apple.kext.AMDSupport 8.1.2

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleGraphicsControl 3.4.5

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.iokit.IONDRVSupport 2.3.7

com.apple.driver.AppleSMBusController 1.0.11d0

com.apple.iokit.IOGraphicsFamily 2.3.7

com.apple.driver.AppleUSBHIDKeyboard 170.2

com.apple.driver.AppleHIDKeyboard 170.2

com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.5

com.apple.iokit.IOUSBMassStorageClass 3.5.1

com.apple.iokit.IOUSBHIDDriver 5.2.5

com.apple.driver.AppleUSBMergeNub 5.5.5

com.apple.driver.AppleUSBComposite 5.2.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.5.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOUSBUserClient 5.5.5

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.iokit.IO80211Family 530.4

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOAHCIFamily 2.3.1

com.apple.iokit.IOUSBFamily 5.6.0

com.apple.driver.AppleEFIRuntime 1.7

com.apple.iokit.IOHIDFamily 1.8.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220.3

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 345

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.7

com.apple.iokit.IOPCIFamily 2.7.3

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

System Profile:

Model: iMac11,3, BootROM IM112.0057.B01, 4 processors, Intel Core i7, 2.93 GHz, 8 GB, SMC 1.59f2

Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1024 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533641465238432D48392020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533641465238432D48392020

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.72.0-P2P

Bluetooth: Version 4.1.4f2 12041, 2 service, 18 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: Hitachi HDS722020ALA330, 2 TB

Serial ATA Device: HL-DT-STDVDRW GA32N

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfa130000 / 5

USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0xfa132000 / 7

USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 6

USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa120000 / 3

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2

USB Device: CanoScan, 0x04a9 (Canon Inc.), 0x2220, 0xfd130000 / 5

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 4

USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0xfd110000 / 3

iMac, OS X Mountain Lion (10.8.4), after update from 10.7.5

Posted on Jun 23, 2013 3:24 AM

Reply
4 replies

Jun 23, 2013 8:42 AM in response to mölli

That panic was not caused by third-party software. If the problem is recurrent, the possibilities are:


  1. A stale or corrupt kernel cache
  2. A damaged OS X installation
  3. A fault in a peripheral device, if any
  4. Corrupt non-volatile memory (NVRAM)
  5. An internal hardware fault (including incompatible memory)
  6. An obscure bug in OS X


You may already have ruled out some of these.

Rule out #1 by booting in safe mode and then rebooting as usual. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.

You can rule out #2 and #3 by reinstalling the OS and testing with non-essential peripherals disconnected and aftermarket expansion cards removed, if applicable. Sometimes a clean reinstallation (after erasing the startup volume) may solve a problem that isn't solved by reinstalling in place, without erasing.


Corrupt NVRAM, which rarely causes panics, can be ruled out by resetting it.


If your model has user-replaceable memory, and you've upgraded the memory modules, reinstall the original memory and see whether there's any improvement. Be careful not to touch the gold contacts. Clean them with a mild solvent such as rubbing alcohol. Aftermarket memory must exactly match the technical specifications for your model. Memory that is either slower or faster than specified may be incompatible.


The Apple Hardware Test or Apple Diagnostics, though generally unreliable, will sometimes detect a fault. A negative test can't be depended on. Run the extended version of the test.


In the category of obscure bugs, reports suggest that FileVault may trigger kernel traps under some unknown conditions. Most, though not all, of these reports seem to involve booting from an aftermarket SSD. If those conditions apply to you, try deactivating FileVault.

Connecting more than one display is another reported trigger for OS X bugs.


In rare cases, a malformed network packet from a defective router or other network device can cause panics. Such packets could also be sent deliberately by a skillful attacker. This possibility is something to consider if you run a public server that might be the target of such an attack.


If none of the above applies, make a "Genius" appointment at an Apple Store to have the machine tested. You may have to leave it there for several days. There isn't much point in doing this unless you can reproduce the panic, or if you can't, it happens often enough that it's likely to be repeated at the store. Otherwise you may be told that nothing is wrong.


Print the first page of the panic report and bring it with you.


Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you know how to restore, and you have at least two independent backups.) Don’t erase the recovery partition, if present.


Keeping your confidential data secure during hardware repair


*An SSD doesn't need to be zeroed.

Kernel panic after update to Mountain Lion

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