Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Kernel_Task after Genius looked at iMac

Today is the 2nd day after my iMac has been back because the Genius clinic had it for a week and found no problems. I have not connected any of my USB or other devices into the iMac but yet again another Kernel_Task panic. This leads me to think the only thing left is the Timecapsule itself causing these errors. Is this possible or anything else I have not thought of? The crashes have been happening since week 1 of getting the iMac (6 months ago) and loosing my marbles.


EDIT: I also have a MacbookPro and have never had trouble backing up to the Timecapsule


Anonymous UUID: ***********


Sat Jul 12 19:15:07 2014

panic(cpu 4 caller 0xffffff80158dc24e): Kernel trap at 0xffffff80158f68f8, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x0000000000000060, CR3: 0x0000000018500000, CR4: 0x00000000001606e0

RAX: 0x0000000000000800, RBX: 0x0000000000000008, RCX: 0x0000000000000199, RDX: 0x0000000000000000

RSP: 0xffffff83beefbd10, RBP: 0xffffff83beefbd60, RSI: 0xffffff8015edcc00, RDI: 0x0000000000000000

R8: 0x0000000000000001, R9: 0x0000000000000000, R10: 0x00000000ffffffff, R11: 0x0000000000000040

R12: 0xffffff8015edcc40, R13: 0x00000000000e4944, R14: 0x0000000000000000, R15: 0x0000000000000000

RFL: 0x0000000000010046, RIP: 0xffffff80158f68f8, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x0000000000000060, Error code: 0x0000000000000002, Fault CPU: 0x4


Backtrace (CPU 4), Frame : Return Address

0xffffff83beefb9a0 : 0xffffff8015822f79

0xffffff83beefba20 : 0xffffff80158dc24e

0xffffff83beefbbf0 : 0xffffff80158f3746

0xffffff83beefbc10 : 0xffffff80158f68f8

0xffffff83beefbd60 : 0xffffff80158f732f

0xffffff83beefbe00 : 0xffffff80158f8400

0xffffff83beefbef0 : 0xffffff80158de240

0xffffff83beefbf30 : 0xffffff8015836e4d

0xffffff83beefbf70 : 0xffffff80158d65c8


BSD process name corresponding to current thread: kernel_task


Mac OS version:

13E28


Kernel version:

Darwin Kernel Version 13.3.0: Tue Jun 3 21:27:35 PDT 2014; root:xnu-2422.110.17~1/RELEASE_X86_64

Kernel UUID: BBFADD17-672B-35A2-9B7F-E4B12213E4B8

Kernel slide: 0x0000000015600000

Kernel text base: 0xffffff8015800000

System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)


System uptime in nanoseconds: 21626954174820

last loaded kext at 4407312771517: com.apple.driver.AppleIntelMCEReporter 104 (addr 0xffffff7f97ec8000, size 49152)

last unloaded kext at 4531900544671: com.apple.driver.AppleIntelMCEReporter 104 (addr 0xffffff7f97ec8000, size 32768)

loaded kexts:

com.apple.filesystems.afpfs 11.1

com.apple.nke.asp-tcp 8.0.1

com.apple.filesystems.udf 2.5

com.apple.driver.AppleBluetoothMultitouch 80.14

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.filesystems.autofs 3.0

com.apple.iokit.IOBluetoothSerialManager 4.2.6f1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleMikeyDriver 2.6.3f4

com.apple.driver.ApplePlatformEnabler 2.0.9d6

com.apple.driver.AGPM 100.14.28

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.AppleHDA 2.6.3f4

com.apple.driver.AppleUpstreamUserClient 3.5.13

com.apple.GeForce 8.2.6

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.6f1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleThunderboltIP 1.1.2

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleSMCLMU 2.0.4d1

com.apple.driver.AppleLPC 1.7.0

com.apple.driver.AppleIntelHD5000Graphics 8.2.8

com.apple.driver.AppleIntelFramebufferAzul 8.2.8

com.apple.driver.AppleBacklight 170.3.5

com.apple.driver.AppleMCCSControl 1.2.5

com.apple.iokit.SCSITaskUserClient 3.6.6

com.apple.driver.AppleUSBODD 3.4.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeLZVN 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.AppleUSBHub 683.4.0

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.6.0

com.apple.driver.AppleSDXC 1.5.2

com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2

com.apple.driver.AirPort.Brcm4360 842.21.65

com.apple.driver.AppleAHCIPort 3.0.5

com.apple.driver.AppleUSBXHCI 683.4.0

com.apple.driver.AppleACPIButtons 2.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 2.0

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 153

com.apple.security.quarantine 3

com.apple.security.SecureRemotePassword 1.0

com.apple.driver.AppleBluetoothHIDKeyboard 170.15

com.apple.driver.AppleHIDKeyboard 170.15

com.apple.driver.IOBluetoothHIDDriver 4.2.6f1

com.apple.driver.AppleMultitouchDriver 245.13

com.apple.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 10.0.7

com.apple.driver.DspFuncLib 2.6.3f4

com.apple.vecLib.kext 1.0.0

com.apple.iokit.IOAudioFamily 1.9.7fc2

com.apple.kext.OSvKernDSPLib 1.14

com.apple.iokit.IOAcceleratorFamily 98.22

com.apple.nvidia.driver.NVDAGK100Hal 8.2.6

com.apple.nvidia.driver.NVDAResman 8.2.6

com.apple.iokit.IOBluetoothFamily 4.2.6f1

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.6f1

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleThunderboltEDMSink 2.1.3

com.apple.driver.AppleHDAController 2.6.3f4

com.apple.iokit.IOHDAFamily 2.6.3f4

com.apple.driver.AppleSMC 3.1.8

com.apple.driver.IOPlatformPluginFamily 5.7.1d6

com.apple.iokit.IOSurface 91.1

com.apple.AppleGraphicsDeviceControl 3.6.22

com.apple.iokit.IOAcceleratorFamily2 98.22

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.driver.AppleSMBusController 1.0.12d1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOUSBHIDDriver 660.4.0

com.apple.driver.AppleUSBMergeNub 650.4.0

com.apple.driver.AppleThunderboltDPInAdapter 3.1.7

com.apple.driver.AppleThunderboltDPOutAdapter 3.1.7

com.apple.driver.AppleThunderboltDPAdapterFamily 3.1.7

com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.6.6

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOUSBMassStorageClass 3.6.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.6

com.apple.driver.AppleUSBComposite 656.4.1

com.apple.driver.CoreStorage 380

com.apple.iokit.IOUSBUserClient 660.4.2

com.apple.driver.AppleThunderboltNHI 2.0.1

com.apple.iokit.IOThunderboltFamily 3.3.1

com.apple.iokit.IOEthernetAVBController 1.0.3b4

com.apple.iokit.IO80211Family 640.36

com.apple.driver.mDNSOffloadUserClient 1.0.1b5

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOAHCIFamily 2.6.5

com.apple.iokit.IOUSBFamily 683.4.0

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 278.11.1

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.AppleKeyStore 2

com.apple.driver.DiskImages 371.1

com.apple.iokit.IOStorageFamily 1.9

com.apple.iokit.IOReportFamily 23

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 2.0

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

com.apple.kec.pthread 1

Model: iMac14,2, BootROM IM142.0118.B00, 4 processors, Intel Core i7, 3.5 GHz, 32 GB, SMC 2.15f2

Graphics: NVIDIA GeForce GTX 780M, NVIDIA GeForce GTX 780M, PCIe, 4096 MB

Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46

Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46

Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46

Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (6.30.223.154.65)

Bluetooth: Version 4.2.6f1 14216, 3 services, 23 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: APPLE SSD SD0128F, 121.33 GB

Serial ATA Device: APPLE HDD ST3000DM001, 3 TB

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: FaceTime HD Camera (Built-in)

USB Device: Apple USB SuperDrive

USB Device: Smart-UPS 1000 FW:UPS 08.8 / ID=18

Thunderbolt Bus: iMac, Apple Inc., 23.10

Posted on Jul 12, 2014 2:22 PM

Reply
5 replies

Jul 12, 2014 3:08 PM in response to martinfromhalifax

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 starting up in safe mode and then restarting as usual. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or 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 may solve a problem that isn't solved by reinstalling in place.

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 of the machine.

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

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 starting up from an aftermarket SSD. If those conditions apply to you, try deactivating FileVault.

Even if FileVault is not active, an aftermarket SSD may be the cause of kernel panics. Check the manufacturer's website for a firmware update.

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

If the system is not fully up to date, running Software Update might get you a bug fix.

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.

Otherwise, make a "Genius" appointment at an Apple Store, or go to another authorized service provider 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.

Jul 13, 2014 4:07 AM in response to Linc Davis

I have to believe that the Genius Dept, knows what its doing. So based on this hopefully right assumption I am led to think that the problem is external to the iMac. So I have bought a UPS power supply as several cases I read about regarded faulty power/cables causing kernels and I have replaced all the ethernet leads. The only external left then is the Timecapsule and ISP modem.


Most of the items you linked Linc Davis there is no way I know of to check myself however many I have done.


  • Reinstalled OSX Mavericks formatting the drive first and not installing from the Timecapsule
  • The Ram is Apples own and not bought from a secondary vendor
  • Removed ALL devices from the iMac
  • Made sure everything has the latest software and updated


I am thinking strongly of turning off the WIFI and seeing if that helps.

Jul 13, 2014 12:14 PM in response to Linc Davis

I just find it odd that Genius bar had it on test for 7 days and no errors then as soon as I get it back I get a Kernel. I am grateful for all your help on this matter and will look into the Apple ram but for now though, I have removed the Timecapsule and see how it goes.Your first post references Bad Malformed Packets so for now I will base my fixes with this.


I just didn't expect to spend £3000 on the iMac and then spend the next 6months+ on trying to fix its panics. So getting a little annoyed about it all.

Kernel_Task after Genius looked at iMac

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.