8 Replies Latest reply: Dec 23, 2012 2:49 PM by Dick Chanslor
Dick Chanslor Level 1 Level 1 (15 points)

iMac 3.06 GHz Intel Core 2 Duo

MacOS X 10.8.2


Over the last several days, on only the first startup of the day, my iMac, early in the startup process, has interrupted the startup by restarting, then continuing with a normal startup without further action on my part. Upon completion of the startup, and alert reports that "Your computer restarted because of a problem", and asks if I want to report the problem to Apple. The following is an example of the report:

******************************************************************************** *****************************************************

Interval Since Last Panic Report:  44896 sec

Panics Since Last Report:          1

Anonymous UUID:                    6BACAFFC-5CA6-31F8-722F-C7047C4DA267



Sun Dec  2 08:22:21 2012

panic(cpu 1 caller 0xffffff80106b7bd5): Kernel trap at 0xffffff7f91e6cb36, type 14=page fault, registers:

CR0: 0x0000000080010033, CR2: 0x0000000000000010, CR3: 0x000000002513d000, CR4: 0x0000000000000660

RAX: 0x0000000000000001, RBX: 0xffffff807b8ed000, RCX: 0xffffff801ced2aa0, RDX: 0xffffff809056ba88

RSP: 0xffffff809056bbb0, RBP: 0xffffff809056bbb0, RSI: 0x0000000000000000, RDI: 0x0000000000000000

R8:  0x0000000000000000, R9:  0x00000000000003ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff

R12: 0xffffff807b8ed000, R13: 0x0000000000000000, R14: 0x0000000000000002, R15: 0x0000000000000000

RFL: 0x0000000000010246, RIP: 0xffffff7f91e6cb36, CS:  0x0000000000000008, SS:  0x0000000000000010

Fault CR2: 0x0000000000000010, Error code: 0x0000000000000000, Fault CPU: 0x1



Backtrace (CPU 1), Frame : Return Address

0xffffff809056b850 : 0xffffff801061d626

0xffffff809056b8c0 : 0xffffff80106b7bd5

0xffffff809056ba90 : 0xffffff80106ce4ed

0xffffff809056bab0 : 0xffffff7f91e6cb36

0xffffff809056bbb0 : 0xffffff7f91e57182

0xffffff809056bc00 : 0xffffff7f91e570d8

0xffffff809056bc20 : 0xffffff7f91e2840e

0xffffff809056bc50 : 0xffffff7f90ca7350

0xffffff809056bc90 : 0xffffff7f90ca72bf

0xffffff809056bcb0 : 0xffffff7f90cacfb8

0xffffff809056bd40 : 0xffffff7f90ca4e00

0xffffff809056bd70 : 0xffffff8010a33dbb

0xffffff809056bdc0 : 0xffffff8010a63ff7

0xffffff809056be30 : 0xffffff8010697d2f

0xffffff809056be80 : 0xffffff8010620aed

0xffffff809056beb0 : 0xffffff8010610448

0xffffff809056bf00 : 0xffffff801061961b

0xffffff809056bf70 : 0xffffff80106a5b16

0xffffff809056bfb0 : 0xffffff80106ced53

      Kernel Extensions in backtrace:

         com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f90c9b000->0xffffff7f90cd2fff

            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f90c50000

         com.apple.GeForce(8.0)[2E56ED9A-D848-3795-9E52-56BABDC9000C]@0xffffff7f91e27000 ->0xffffff7f91ee9fff

            dependency: com.apple.NVDAResman(8.0.0)[A4C53A36-22B6-3075-82B9-9DE612A9C015]@0xffffff7f90c f2000

            dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7f90cde000

            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f90c50000

            dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f90c9b000



BSD process name corresponding to current thread: WindowServer



Mac OS version:




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:     0x0000000010400000

Kernel text base: 0xffffff8010600000

System model name: iMac9,1 (Mac-F2218FC8)



System uptime in nanoseconds: 28473183008

last loaded kext at 28472581893: com.apple.driver.AppleHWSensor          1.9.5d0 (addr 0xffffff7f925ab000, size 36864)

loaded kexts:

com.Logitech.Unifying.HID Driver          1.2.0

com.Logitech.Control Center.HID Driver          3.4.0

at.obdev.nke.LittleSnitch          2.5.3

com.apple.driver.AppleHWSensor          1.9.5d0

com.apple.driver.AudioAUUC          1.60

com.apple.iokit.IOBluetoothSerialManager          4.0.9f33

com.apple.driver.AppleTyMCEDriver          1.0.2d2

com.apple.driver.AGPM          100.12.69

com.apple.driver.AppleMikeyHIDDriver          122

com.apple.driver.AppleHDAHardwareConfigDriver          2.3.1f2

com.apple.driver.AppleHDA          2.3.1f2

com.apple.driver.AppleMikeyDriver          2.3.1f2

com.apple.iokit.IOUserEthernet          1.0.0d1

com.apple.Dont_Steal_Mac_OS_X          7.0.0

com.apple.driver.AppleLPC          1.6.0

com.apple.driver.AppleMuxControl          3.2.11

com.apple.driver.AppleBacklight          170.2.3

com.apple.filesystems.autofs          3.0

com.apple.driver.ApplePolicyControl          3.2.11

com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0

com.apple.iokit.IOBluetoothUSBDFU          4.0.9f33

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f33

com.apple.driver.AppleUpstreamUserClient          3.5.10

com.apple.driver.AppleMCCSControl          1.0.33

com.apple.GeForce          8.0.0

com.apple.driver.AppleIRController          320.15

com.apple.driver.AppleFileSystemDriver          3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1

com.apple.BootCache          34

com.apple.iokit.SCSITaskUserClient          3.5.1

com.apple.driver.XsanFilter          404

com.apple.iokit.IOAHCIBlockStorage          2.2.2

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.AppleUSBHub          5.2.5

com.apple.driver.AppleUSBOHCI          5.2.5

com.apple.nvenet          2.0.19

com.apple.driver.AppleEFINVRAM          1.6.1

com.apple.driver.AppleUSBEHCI          5.4.0

com.apple.driver.AppleHPET          1.7

com.apple.driver.AppleRTC          1.5

com.apple.driver.AppleACPIButtons          1.6

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.iokit.IOSerialFamily          10.0.6

com.apple.iokit.IOFireWireIP          2.2.5

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.driver.AppleBacklightExpert          1.0.4

com.apple.driver.AppleHDAController          2.3.1f2

com.apple.iokit.IOHDAFamily          2.3.1f2

com.apple.kext.triggers          1.0

com.apple.driver.AppleGraphicsControl          3.2.11

com.apple.driver.AppleSMC          3.1.4d2

com.apple.driver.IOPlatformPluginLegacy          1.0.0

com.apple.driver.IOPlatformPluginFamily          5.2.0d16

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f33

com.apple.driver.AppleSMBusController          1.0.10d0

com.apple.driver.AppleSMBusPCI          1.0.10d0

com.apple.nvidia.nv50hal          8.0.0

com.apple.NVDAResman          8.0.0

com.apple.iokit.IONDRVSupport          2.3.5

com.apple.iokit.IOGraphicsFamily          2.3.5

com.apple.driver.AppleUSBHIDKeyboard          165.5

com.apple.driver.AppleHIDKeyboard          165.5

com.apple.iokit.IOUSBHIDDriver          5.2.5

com.apple.driver.AppleUSBMergeNub          5.2.5

com.apple.driver.AppleUSBComposite          5.2.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1

com.apple.iokit.IOBDStorageFamily          1.7

com.apple.iokit.IODVDStorageFamily          1.7.1

com.apple.iokit.IOCDStorageFamily          1.7.1

com.apple.iokit.IOAHCISerialATAPI          2.5.0

com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1

com.apple.iokit.IOFireWireFamily          4.5.5

com.apple.iokit.IO80211Family          500.15

com.apple.iokit.IOAHCIFamily          2.2.1

com.apple.iokit.IOUSBUserClient          5.2.5

com.apple.iokit.IONetworkingFamily          3.0

com.apple.iokit.IOUSBFamily          5.4.0

com.apple.driver.NVSMU          2.2.9

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: iMac9,1, BootROM IM91.008D.B08, 2 processors, Intel Core 2 Duo, 3.06 GHz, 4 GB, SMC 1.37f3

Graphics: NVIDIA GeForce GT 130, NVIDIA GeForce GT 130, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334448312D4346382020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334448312D4346382020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (

Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: WDC WD1001FALS-40K1B0, 1 TB

Serial ATA Device: OPTIARC DVD RW AD-5670S

USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0x24400000 / 3

USB Device: hub_device, 0x04cc  (Philips Semiconductors), 0x1521, 0x24300000 / 2

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0x24350000 / 4

USB Device: USB Receiver, 0x046d  (Logitech Inc.), 0xc52b, 0x24353000 / 6

USB Device: Apple Keyboard, apple_vendor_id, 0x0220, 0x24352000 / 5

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2

USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x06100000 / 2

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x06110000 / 3


******************************************************************************** *****************************************************

Subsequent startups on the same day proceed without interruption and without a problem report, until the first startup of the next day. I normally shut down the computer over night. The iMac operates normally after any of these startups, interrupted or not. Apple Hardware Test reports no problems.


This behavior is annoying, but not very problematic so far. Does anyone have a likely explanation or suggested cure?

iMac, OS X Mountain Lion, 3.06 GHz Intel Core 2 Duo
  • 1. Re: iMac restarts itself during first startup of the day
    BDAqua Level 10 Level 10 (116,475 points)

    Have you tried just sleeping it at night?


    It appears to be graphic card related.


    Have you blown the dust out lately?

  • 2. Re: iMac restarts itself during first startup of the day
    Dick Chanslor Level 1 Level 1 (15 points)

    BDAqua wrote:


    Have you tried just sleeping it at night?


    It appears to be graphic card related.


    Have you blown the dust out lately?

    Thanks very much for answering.


    Sleeping the iMac at night would work, I'm sure, since it's only on a cold restart that the unplanned restart occurs. Not as satisfying as curing the issue, though.


    Apple Hardware Test reported nothing wrong with the graphic card, but the computer is not cold by the time the test is run, so I guess that could still be it.


    I'm sure there is dust inside after three + years. Apple didn't really want me to open up my iMac, but this Core 2 Duo model can be opened by lifting off the glass with suction cups, I believe. Maybe I will do that and dust, and see if that helps. There might even be something I can reseat.


    Also, I believe that on my next cold startup I will try single user mode and see if that prevents the restart.


    Thanks for your suggestions.

  • 3. Re: iMac restarts itself during first startup of the day
    BDAqua Level 10 Level 10 (116,475 points)

    Two great ideas!

  • 4. Re: iMac restarts itself during first startup of the day
    Dick Chanslor Level 1 Level 1 (15 points)



    I tried my next cold restart using a partition containg OS X 10.7.5 (Lion). My iMac started normally and ran without a spurious restart. This suggested a system software issue in OS X 10.8.2. A thread somewhere in this forum mentioned removing files from the /Library/LaunchAgents and /Library/LaunchDaemons folders, so I checked those folders and noticed TechTool Pro related files in each. I uninstalled my TechTool Pro 6.0.3 and all its files I could find, including those from the LaunchAgents and LaunchDaemons folders.


    So far, the spurious restarts have not recurred.

  • 5. Re: iMac restarts itself during first startup of the day
    BDAqua Level 10 Level 10 (116,475 points)

    Good work, great to hear, thanks for the report!

  • 6. Re: iMac restarts itself during first startup of the day
    Dick Chanslor Level 1 Level 1 (15 points)

    Sorry, that didn't do it after all. Happened again today. (Apologies to TechTool Pro.)


    This behavior started about last Thursday, November 29. Hmmm, what did I do last Thursday? I installed the new iTunes 11, that's what. I'm going to check that out. Maybe it's iTunes Helper; I've heard that can cause problems.


    Troubleshooting is slow, because I can only retest once a day, first startup in the morning. I've tried shutting down for a few hours during the day, then restarting. But there's no problem then. But I'll bet it's not a coincidence that it began with iTunes 11.

  • 7. Re: iMac restarts itself during first startup of the day
    Dick Chanslor Level 1 Level 1 (15 points)

    Further study found that Mac OS X 10.8.2 update installed new versions of several graphics extensions which affect the NIVIDIA GeForce graphics in this iMac. Graphics kexts are prominently noted in all my crash reports.


    So I reinstalled OS X 10.8, and updated only to 10.8.1 and have had no problematic startups or kernel panics since.

  • 8. Re: iMac restarts itself during first startup of the day
    Dick Chanslor Level 1 Level 1 (15 points)

    Just to let you know, your suggestion to blow out the dust seems to have turned out to be the best one.


    I took the iMac apart, blew out dust, and reseated RAM, and since then the startups have been without incident. Confirmation was slow, because kernel panics only occurred on cold startups, but I have been able to install all the Mac OS X 10.8.2 updates and still no kernel panics since dust removal and RAM reseat.


    Thank you.