Learning to read Kernel Panic logs

Discussion in 'Mac Pro' started by IceMacMac, May 17, 2011.

  1. IceMacMac macrumors 6502

    Joined:
    Jun 6, 2010
    #1
    I have acquired about 3% mastery in reading KP logs. I've had an undue amount of practice lately.

    I've learned:
    1. They aren't good!
    2. They are most often related to RAM or to a cable/connection, seating of a card, but they can be a software problem.

    Can any guru discern the t-leaves below? If my problem isn't the RAM...are we maybe looking at a logic board? I've been getting 3-4 kps per day!

    Here is what I believe to be the salient lines. Can anyone give me some hints at what is going on here?





    Machine-check capabilities (cpu 8) 0x0000000000001c09:
    family: 6 model: 26 stepping: 5 microcode: 17
    Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
    9 error-reporting banks
    threshold-based error status present
    extended corrected memory error handling present
    Machine-check status 0x0000000000000004:
    machine-check in progress
    MCA error-reporting registers:
    IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
    IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
    IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
    IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
    IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
    IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
    IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
    IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
    Package 1 logged:
    IA32_MC8_STATUS(0x421): 0xfe0000400001009f valid
    Channel number: 15 (unknown)
    Memory Operation: read
    Machine-specific error: Read ECC
    COR_ERR_CNT: 2
    Status bits:
    Processor context corrupt
    ADDR register valid
    MISC register valid
    Error enabled
    Uncorrected error
    Error overflow
    IA32_MC8_ADDR(0x422): 0x000000020a95c400
    IA32_MC8_MISC(0x423): 0x30b0ce3800041b81
    DIMM: 0
    Channel: 1
    Syndrome: 0x30b0ce38
    Package 0 logged:
    IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
    panic(cpu 8 caller 0x2a9d27): Machine Check at 0xffff0825, thread:0x3f87d000, trapno:0x12, err:0x0,registers:
    CR0: 0x80010033, CR2: 0x4123518c, CR3: 0x00100000, CR4: 0x00000660
    EAX: 0xffff07a0, EBX: 0x00000c00, ECX: 0x00000000, EDX: 0xffffc240
    ESP: 0xb0627e40, EBP: 0xb0627e48, ESI: 0x1f98ca00, EDI: 0x25fd8270
    EFL: 0x00000282, EIP: 0xffff0825

    Backtrace (CPU 8), Frame : Return Address (4 potential args on stack)
    0x972cdfb8 : 0x21b510 (0x5d9514 0x972cdfec 0x223978 0x0)
    0x972ce008 : 0x2a9d27 (0x59abb4 0x59aca1 0xffff0825 0x3f87d000)
    0x972ce0f8 : 0x2a1922 (0x1 0x4000008 0x500c 0xd000165)

    BSD process name corresponding to current thread: iTunes
     
  2. imaketouchtheme macrumors 65816

    Joined:
    Dec 5, 2007
    #2
    Based on my vast knowledge of reading Kernel Panic Logs, it looks like the processor could be overheating, which, in turn, is causing your Kernel to Panic.

    All joking aside, I would download smcFanControl and post back the temperature that your computer is running at.
     
  3. IceMacMac thread starter macrumors 6502

    Joined:
    Jun 6, 2010
    #3

    I can't say what the temperature was before...but right now CPU 1 is at 109 degrees, which seems low. (It's not in use right now)

    Today I did a thorough cleaning of the fans, boards, etc. and re-seated everything. I also ran DiskWarrior. Oh...and I pulled half the RAM out. So we'll see if it runs any cleaner now.
     
  4. imaketouchtheme macrumors 65816

    Joined:
    Dec 5, 2007
    #4
    Yeah, 109 degrees is a great temperature to be running at. Hmmm.

    Let me know how it runs with certain RAM in and post back any recurring Kernel Panics.
     
  5. IceMacMac thread starter macrumors 6502

    Joined:
    Jun 6, 2010
    #5

    Thanks!
     
  6. FrankHahn macrumors 6502a

    Joined:
    May 17, 2011
    #6
    Possible RAM problem

    From my experience with the kernel panics, we would say that the KPs were probably caused by your RAM sticks. I found the defective RAM stick using the Apple Hardware Test.

    The following lines in the KP report caught my eyes:
    MCA error-reporting registers:
    IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
    IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
    IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
    IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
    IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
    IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
    IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
    IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
     
  7. IceMacMac thread starter macrumors 6502

    Joined:
    Jun 6, 2010
    #7

    Frank...I've tested the RAM several times with TechToolPro. I guess I could run a longer/deeper test with Apple Hardware Disc.

    Do the lines that "caught your eye" point to RAM?
     
  8. theSeb macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #8
    Looks like ram to me, but I am not an expert.
     
  9. Cindori macrumors 68040

    Cindori

    Joined:
    Jan 17, 2008
    Location:
    Sweden
    #9
    open side of mac pro when running, see if ram riser LEDs are on




    and try memtest on a boot disc (burn from iso)
    http://www.memtest.org/

    leave it on for at least 12h to rule out ram issues.
     
  10. Riot Nrrrd macrumors regular

    Riot Nrrrd

    Joined:
    Feb 23, 2011
    Location:
    Lost Androideles
    #10
    A Machine Check (more commonly known as an MCE, or Machine Check Exception) is most commonly caused by bad RAM.

    BTW if you want to become a Kernel Panic Ninja and be able to get anything useful out of those stack Backtrace functions/args, become an Apple Developer (it's free) and download/install a Kernel Debug Kit that's appropriate for your OS release. Then you will get symbolic backtraces instead of gobbledigook like "0x972cdfb8".
     
  11. elvisizer macrumors 6502

    Joined:
    May 29, 2003
    Location:
    San Jose
    #11
    definitely looks like either bad ram or bad motherboard to me:

    DIMM: 0
    Channel: 1= that's the DIMM and channel showing the errors that caused this log


    this is a pretty standard ECC error log actually.
     
  12. goMac macrumors 603

    Joined:
    Apr 15, 2004
    #12
    That's all you need to read, it's RAM.
     
  13. IceMacMac thread starter macrumors 6502

    Joined:
    Jun 6, 2010
    #13
    Just to finally wrap this up.

    I ran an overnight RAM test and my stem froze. So I got an RMA from Other Word Computing and exchanged the RAM.

    It's been running pretty good since then.
     
  14. Riccardo83 macrumors member

    Riccardo83

    Joined:
    Jan 29, 2014
    Location:
    Berlin
    #14
    hey guys, i have a similar problem. i just had 3 restarts with this error. i always open last apps and it restarted again and again (lightroom, capture one, opera ... running). the 4th time i made a fresh restart and it worked.

    Anonymous UUID: 55443476-DC95-635D-AAB8-ECFD4457A876

    Thu Feb 11 21:58:34 2016

    *** Panic Report ***
    Machine-check capabilities: 0x0000000000000c0a
    family: 6 model: 70 stepping: 1 microcode: 15
    signature: 0x40661
    Intel(R) Core(TM) i7-4980HQ CPU @ 2.80GHz
    10 error-reporting banks
    Processor 0: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    Processor 1: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    Processor 2: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    Processor 3: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    Processor 4: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    Processor 5: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    Processor 6: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    Processor 7: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe413cc00002011b
    IA32_MC9_ADDR(0x426): 0x010e9b80001fff1e
    IA32_MC9_MISC(0x427): 0x00000003b42241c0
    panic(cpu 1 caller 0xffffff800a3d301a): "Machine Check at 0x00007fff8907ee10, registers:\n" "CR0: 0x0000000080010033, CR2: 0x000000010d5ff000, CR3: 0x000000034b23e0da, CR4: 0x00000000001627e0\n" "RAX: 0x00007fff7a5d4d90, RBX: 0x00007fd58a05f010, RCX: 0x00007fff78539fa0, RDX: 0x00007fd58d325638\n" "RSP: 0x00007000029a67c8, RBP: 0x00007000029a6c10, RSI: 0x00007fff8944bb0f, RDI: 0x00007fd58d325630\n" "R8: 0x00000000fffffffc, R9: 0x00007fd589d21a10, R10: 0x00007fd589d25d10, R11: 0x00007fff78539fa0\n" "R12: 0xa3a3a3a3a3a3a3a3, R13: 0x59000e45834f5577, R14: 0x00007fd58a05f038, R15: 0x00007fd58a05f000\n" "RFL: 0x0000000000000246, RIP: 0x00007fff8907ee10, CS: 0x000000000000002b, SS: 0x0000000000000023\n" "Error code: 0x0000000000000000\n"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.30.4/osfmk/i386/trap_native.c:168
    Backtrace (CPU 1), Frame : Return Address
    0xffffff91f76fbdd0 : 0xffffff800a2df792
    0xffffff91f76fbe50 : 0xffffff800a3d301a
    0xffffff91f76fbfb0 : 0xffffff800a3f0acf

    BSD process name corresponding to current thread: Opera Helper

    Mac OS version:
    15D21

    Kernel version:
    Darwin Kernel Version 15.3.0: Thu Dec 10 18:40:58 PST 2015; root:xnu-3248.30.4~1/RELEASE_X86_64
    Kernel UUID: DECC9F02-27D7-31F0-9599-A9EF2873902C
    Kernel slide: 0x000000000a000000
    Kernel text base: 0xffffff800a200000
    __HIB text base: 0xffffff800a100000
    System model name: MacBookPro11,3 (Mac-2BD1B31983FE1663)

    System uptime in nanoseconds: 66323385043
    last loaded kext at 14374213568: com.apple.driver.AppleBluetoothHIDKeyboard 181 (addr 0xffffff7f8ce5e000, size 16384)
    loaded kexts:
    at.obdev.nke.LittleSnitch 4360
    com.apple.filesystems.msdosfs 1.10
    com.apple.driver.AppleBluetoothMultitouch 90.3
    com.apple.filesystems.exfat 1.4
    com.apple.driver.AppleHWSensor 1.9.5d0
    com.apple.filesystems.autofs 3.0
    com.apple.driver.AudioAUUC 1.70
    com.apple.driver.ApplePlatformEnabler 2.6.0d0
    com.apple.driver.AGPM 110.20.22
    com.apple.driver.X86PlatformShim 1.0.0
    com.apple.driver.AppleOSXWatchdog 1
    com.apple.driver.AppleGraphicsDevicePolicy 3.7.7
    com.apple.driver.AppleHDAHardwareConfigDriver 272.51.3
    com.apple.driver.AppleHDA 272.51.3
    com.apple.driver.pmtelemetry 1
    com.apple.driver.AppleUpstreamUserClient 3.6.1
    com.apple.iokit.IOUserEthernet 1.0.1
    com.apple.driver.AppleIntelHD5000Graphics 10.1.2
    com.apple.GeForce 10.0.8
    com.apple.iokit.IOBluetoothSerialManager 4.4.3f4
    com.apple.Dont_Steal_Mac_OS_X 7.0.0
    com.apple.driver.AppleBacklight 170.8.8
    com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.3f4
    com.apple.driver.AppleHV 1
    com.apple.driver.AppleMCCSControl 1.2.13
    com.apple.driver.AppleLPC 3.1
    com.apple.nvidia.NVDAStartup 10.0.8
    com.apple.driver.AppleMuxControl 3.12.6
    com.apple.driver.AppleSMCLMU 208
    com.apple.driver.AppleCameraInterface 5.41.0
    com.apple.driver.AppleIntelFramebufferAzul 10.1.2
    com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
    com.apple.driver.AppleFIVRDriver 4.1.0
    com.apple.driver.AppleThunderboltIP 3.0.8
    com.apple.driver.AppleUSBTCButtons 245.4
    com.apple.iokit.SCSITaskUserClient 3.7.7
    com.apple.driver.AppleUSBTCKeyEventDriver 245.4
    com.apple.driver.AppleUSBTCKeyboard 245.4
    com.apple.iokit.IOBluetoothUSBDFU 4.4.3f4
    com.apple.driver.AppleUSBStorageCoexistentDriver 3.7.1
    com.apple.driver.AppleUSBCardReader 3.7.1
    com.apple.driver.CoreStorageFsck 517.20.1
    com.apple.driver.AppleFileSystemDriver 3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
    com.apple.BootCache 38
    com.apple.iokit.IOAHCIBlockStorage 2.8.5
    com.apple.driver.AppleAHCIPort 3.1.8
    com.apple.driver.AirPort.Brcm4360 1020.17.1a1
    com.apple.driver.AppleSmartBatteryManager 161.0.0
    com.apple.driver.AppleACPIButtons 4.0
    com.apple.driver.AppleRTC 2.0
    com.apple.driver.AppleHPET 1.8
    com.apple.driver.AppleSMBIOS 2.1
    com.apple.driver.AppleACPIEC 4.0
    com.apple.driver.AppleAPIC 1.7
    com.apple.nke.applicationfirewall 163
    com.apple.security.quarantine 3
    com.apple.security.TMSafetyNet 8
    com.apple.driver.AppleBluetoothHIDKeyboard 181
    com.apple.driver.AppleHIDKeyboard 181
    com.apple.driver.IOBluetoothHIDDriver 4.4.3f4
    com.apple.driver.AppleMultitouchDriver 304.10
    com.apple.driver.AppleHIDTransport 5
    com.apple.kext.triggers 1.0
    com.apple.driver.DspFuncLib 272.51.3
    com.apple.kext.OSvKernDSPLib 525
    com.apple.iokit.IOSurface 108.0.1
    com.apple.nvidia.driver.NVDAGK100Hal 10.0.8
    com.apple.nvidia.driver.NVDAResman 10.0.8
    com.apple.iokit.IOSerialFamily 11
    com.apple.driver.CoreCaptureResponder 1
    com.apple.driver.IOPlatformPluginLegacy 1.0.0
    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.3f4
    com.apple.iokit.IOBluetoothFamily 4.4.3f4
    com.apple.driver.AppleHDAController 272.51.3
    com.apple.iokit.IOHDAFamily 272.51.3
    com.apple.iokit.IOAudioFamily 204.3
    com.apple.vecLib.kext 1.2.0
    com.apple.driver.AppleSMBusController 1.0.14d1
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    com.apple.driver.AppleSMC 3.1.9
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    com.apple.driver.AppleThunderboltDPOutAdapter 4.1.3
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    com.apple.iokit.IOUSBHIDDriver 900.4.1
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    com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.7
    com.apple.iokit.IOUSBMassStorageDriver 1.0.0
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    com.apple.security.sandbox 300.0
    com.apple.kext.AppleMatch 1.0.0d1
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    com.apple.driver.AppleCredentialManager 1.0
    com.apple.driver.DiskImages 417.2
    com.apple.iokit.IOStorageFamily 2.1
    com.apple.iokit.IOReportFamily 31
    com.apple.driver.AppleFDEKeyStore 28.30
    com.apple.driver.AppleACPIPlatform 4.0
    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
     

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