KeithGParr
Level 1 (0 points)

Q: MBP 13 early 2011 - intermittent restarts

I bought the machine second hand in 2013.  It worked fine until about a year ago (~October 2014), when the machine suddenly stopped, and then restarted.  I took no action at the time, just one of those things.  However in the subsequent months the problem recurred and became unacceptably frequent.  The machine will now run for anything from a few seconds to a few weeks and then fail.


The fault symptoms are somewhat variable.  Sometimes it appears as a kernel panic, sometimes not.  Sometimes it will attempt a restart but stick with the three beeps memory warning.  On two occasions it has displayed some minor video artefacts during the restart.  There doesn't seem to be any recurring trigger for the failure: it can be playing music in iTunes, browsing with Firefox, pretty much anything.


I've run Apple hardware tests on it - nothing found.

 

The machine is only using standard software, no games, nothing fancy.

 

When supplied, the machine had 4+4G of memory and a 320G hard disk.  As part of eliminating possible causes I changed the HD for a 500G version, and replaced the memory three times (using Crucial memory sticks).  I completely wiped the HD, did a clean install of Yosemite, and reinstalled all the programs from originals; I transferred only the data from the old contents.

 

The machine has been to the Genius Bar something like six times.  The first time they recognised the symptoms and said it was the hard disk cable.  This was replaced and the machine worked fine.  For a couple of months.  There were a couple of occasions when the Genius Bar said that as the machine hadn't failed while they had it there was nothing they could do - which was not unreasonable, intermittent faults are tricky!

 

Then the Genius Bar replaced the motherboard.  Again the machine worked fine, for a while, but then it was back to the same behaviour - although the symptoms had changed slightly.

 

For the last six months or so I have been saving copies of the console log and error reports (when generated), in order to help (I hope) the Genius Bar when I go next time, planned for the end of November.  There's nothing glaringly obvious to me that gives any clues as the cause of the failures, the failing processes seem to be arbitrary.  That said, I'm no expert when it comes to interpreting error reports.

 

At the moment my best guess is that the second mother board was / is also faulty.  The chances of that happening must be pretty small but what else is there?

 

I'd be grateful if someone can help me "think different" about the problem!

 

Thanks

 

Keith

MacBook Pro, OS X Yosemite (10.10.2)

Posted on Nov 2, 2015 2:18 AM

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KeithGParr

Q: MBP 13 early 2011 - intermittent restarts

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  • by OGELTHORPE,

    OGELTHORPE OGELTHORPE Nov 2, 2015 2:56 AM in response to KeithGParr
    Level 9 (52,776 points)
    Mac OS X
    Nov 2, 2015 2:56 AM in response to KeithGParr

    Post an Etrecheck report:

     

    http://www.etresoft.com/etrecheck

     

    Also see if you have a kernel panic report and if so, post it as well:

     

    https://support.apple.com/en-us/HT201753

     

    Ciao.

  • by KeithGParr,

    KeithGParr KeithGParr Nov 2, 2015 3:50 AM in response to OGELTHORPE
    Level 1 (0 points)
    Nov 2, 2015 3:50 AM in response to OGELTHORPE

    Thanks for taking an interest!

     

    I have 30 console logs from June - October, and 19 error reports (automatically generated by the system and sent to Apple) over the same period.

    This gives a slightly low indication of the fault incidence as there are some occasions in which the machine doesn't get through the startup before it fails again.  It's also a rough guide to the proportion of kernel panics to "other" failures.

     

    I have attached the latest error report.

     

    I've just run etrecheck and attach the report.

     

    Keith

     

    EtreCheck version: 2.6.3 (223)

    Report generated 02/11/15 12:38

    Runtime 4:04

    Download EtreCheck from http://etresoft.com/etrecheck

     

    Click the [Click for support] links for help with non-Apple products.

    Click the [Click for details] links for more information about that line.

     

    Hardware Information: (What does this mean?)

        MacBook Pro (13-inch, Early 2011)

        [Click for Technical Specifications]

        [Click for User Guide]

        MacBook Pro - model: MacBookPro8,1

        1 2.3 GHz Intel Core i5 CPU: 2-core

        8 GB RAM Upgradeable

        [Click for upgrade instructions]

            BANK 0/DIMM0

                4 GB DDR3 1333 MHz ok

            BANK 1/DIMM0

                4 GB DDR3 1333 MHz ok

        Bluetooth: Old - Handoff/Airdrop2 not supported

        Wireless:  en1: 802.11 a/b/g/n

        Battery: Health = Normal - Cycle count = 596 - SN = W01297ZU6D3BA

     

    Video Information: (What does this mean?)

        Intel HD Graphics 3000

            Color LCD 1280 x 800

     

    System Software: (What does this mean?)

        OS X Yosemite 10.10.5 (14F1021) - Time since boot: about 2 days

     

    Disk Information: (What does this mean?)

        Hitachi HTS545050A7E380 disk0 : (500,11 GB) (Rotational)

            EFI (disk0s1) <not mounted> : 210 MB

            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB

            Joke MBP (disk1) / : 498.88 GB (279.40 GB free)

                Core Storage: disk0s2 499.25 GB Online

     

        MATSHITADVD-R   UJ-8A8   ()

     

    USB Information: (What does this mean?)

        Lexar USB Flash Drive 4,01 GB

            EFI (disk3s1) <not mounted> : 210 MB

            Lexar (disk3s2) /Volumes/Lexar : 3.67 GB (3.56 GB free)

        Apple Computer, Inc. IR Receiver

        Apple Inc. FaceTime HD Camera (Built-in)

        Western Digital My Passport 0820 2 TB

            EFI (disk2s1) <not mounted> : 210 MB

            Music (disk2s2) /Volumes/Music : 2.00 TB (891.68 GB free)

        Apple Inc. BRCM2070 Hub

            Apple Inc. Bluetooth USB Host Controller

        Apple Inc. Apple Internal Keyboard / Trackpad

     

    Thunderbolt Information: (What does this mean?)

        Apple Inc. thunderbolt_bus

     

    Gatekeeper: (What does this mean?)

        Mac App Store and identified developers

     

    Kernel Extensions: (What does this mean?)

            /Applications/DiskWarrior.app

        [not loaded]    com.alsoft.Preview (5 - SDK 10.5) [Click for support]

     

            /Library/Application Support/Symantec/AntiVirus

        [loaded]    com.symantec.kext.SymAPComm (100.1f1 - SDK 10.8) [Click for support]

     

            /Library/Extensions

        [loaded]    at.obdev.nke.LittleSnitch (4352 - SDK 10.8) [Click for support]

        [loaded]    com.symantec.kext.internetSecurity (5.2.1f12 - SDK 10.8) [Click for support]

        [loaded]    com.symantec.kext.ips (3.5.1f12 - SDK 10.8) [Click for support]

        [loaded]    com.symantec.kext.ndcengine (1.0f2 - SDK 10.8) [Click for support]

     

    Launch Agents: (What does this mean?)

        [running]    at.obdev.LittleSnitchUIAgent.plist [Click for support]

        [loaded]    com.google.keystone.agent.plist [Click for support]

        [loaded]    com.oracle.java.Java-Updater.plist [Click for support]

        [running]    com.symantec.uiagent.application.plist [Click for support]

     

    Launch Daemons: (What does this mean?)

        [running]    at.obdev.littlesnitchd.plist [Click for support]

        [loaded]    com.adobe.fpsaud.plist [Click for support]

        [loaded]    com.google.keystone.daemon.plist [Click for support]

        [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]

        [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]

        [loaded]    com.symantec.liveupdate.daemon.ondemand.plist [Click for support]

        [loaded]    com.symantec.liveupdate.daemon.plist [Click for support]

        [running]    com.symantec.sharedsettings.plist [Click for support]

        [running]    com.symantec.symdaemon.plist [Click for support]

     

    User Login Items: (What does this mean?)

        iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

        Dropbox    Application  (/Applications/Dropbox.app)

        DiskWarriorDaemonStarter    Application  (/Applications/DiskWarrior.app/Contents/Helpers/DiskWarriorStarter.app)

     

    Other Apps: (What does this mean?)

        [running]    2BUA8C4S2C.com.agilebits.onepassword4-helper

        [running]    com.apple.xpc.launchd.oneshot.0x10000013.Little Snitch Network Monitor

        [running]    com.apple.xpc.launchd.oneshot.0x10000016.EtreCheck

        [running]    com.getdropbox.dropbox.39224

        [running]    com.google.Chrome.39792

     

    Internet Plug-ins: (What does this mean?)

        FlashPlayer-10.6: Version: 19.0.0.226 - SDK 10.6 [Click for support]

        QuickTime Plugin: Version: 7.7.3

        AdobePDFViewerNPAPI: Version: 11.0.13 - SDK 10.6 [Click for support]

        AdobePDFViewer: Version: 11.0.13 - SDK 10.6 [Click for support]

        Flash Player: Version: 19.0.0.226 - SDK 10.6 [Click for support]

        Default Browser: Version: 600 - SDK 10.10

        SharePointBrowserPlugin: Version: 14.5.7 - SDK 10.6 [Click for support]

        JavaAppletPlugin: Version: Java 8 Update 60 build 27 Check version

     

    Safari Extensions: (What does this mean?)

        1Password

     

    3rd Party Preference Panes: (What does this mean?)

        Flash Player  [Click for support]

        Java  [Click for support]

        Symantec QuickMenu  [Click for support]

     

    Time Machine: (What does this mean?)

        Mobile backups: OFF

        Auto backup: YES

        Volumes being backed up:

            Joke MBP: Disk size: 498.88 GB Disk used: 219.48 GB

        Destinations:

            Joke TM [Local]

            Total size: 999.86 GB

            Total number of backups: 70

            Oldest backup: 22/05/13 15:40

            Last backup: 01/11/15 20:39

            Size of backup disk: Adequate

                Backup size 999.86 GB > (Disk used 219.48 GB X 3)

     

    Top Processes by CPU: (What does this mean?)

            25%    nsurlsessiond(3)

            21%    Google Chrome Helper(8)

            16%    cloudd(2)

            14%    WindowServer

             8%    coreduetd

     

    Top Processes by Memory: (What does this mean?)

        665 MB    kernel_task

        664 MB    com.apple.security.pboxd

        459 MB    Google Chrome Helper(8)

        360 MB    iTunes

        238 MB    mdworker(19)

     

    Virtual Memory Information: (What does this mean?)

        34 MB    Free RAM

        7.97 GB    Used RAM (1.74 GB Cached)

        177 MB    Swap Used

     

    Diagnostics Information: (What does this mean?)

        Nov 1, 2015, 08:06:22 PM    /Library/Logs/DiagnosticReports/com.apple.security.pboxd_2015-11-01-200622_[red acted].cpu_resource.diag [Click for details]

        Oct 31, 2015, 11:09:42 AM    Self test - passed

        Oct 31, 2015, 08:57:28 AM    /Library/Logs/DiagnosticReports/com.apple.security.pboxd_2015-10-31-085728_[red acted].cpu_resource.diag [Click for details]

        Oct 29, 2015, 11:26:45 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-29-232645_[redacted].panic [Click for details]

        Oct 25, 2015, 11:06:32 AM    /Library/Logs/DiagnosticReports/Kernel_2015-10-25-110632_[redacted].panic [Click for details]

        Oct 24, 2015, 07:15:31 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-24-191531_[redacted].panic [Click for details]

        Oct 20, 2015, 09:01:34 AM    /Library/Logs/DiagnosticReports/Kernel_2015-10-20-090134_[redacted].panic [Click for details]

        Oct 16, 2015, 03:04:31 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-16-150431_[redacted].panic [Click for details]

        Oct 16, 2015, 03:00:50 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-16-150050_[redacted].panic [Click for details]

        Oct 16, 2015, 02:43:10 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-16-144310_[redacted].panic [Click for details]

        Oct 16, 2015, 02:40:15 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-16-144015_[redacted].panic [Click for details]

        Oct 16, 2015, 02:24:58 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-16-142458_[redacted].panic [Click for details]

        Oct 12, 2015, 10:14:08 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-12-221408_[redacted].panic [Click for details]

        Oct 10, 2015, 09:20:47 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-10-212047_[redacted].panic [Click for details]

        Oct 10, 2015, 06:53:45 PM    /Library/Logs/DiagnosticReports/Kernel_2015-10-10-185345_[redacted].panic [Click for details]









    Anonymous UUID:       8A4BF6C1-F898-0089-A0D5-78DA79E76ABA

     

    Thu Oct 29 23:26:45 2015

     

    *** Panic Report ***

    panic(cpu 0 caller 0xffffff8005616df2): Kernel trap at 0xffffff7f87993688, type 14=page fault, registers:

    CR0: 0x000000008001003b, CR2: 0x0000000000000057, CR3: 0x0000000008572000, CR4: 0x00000000000626e0

    RAX: 0xffffff8016ab1000, RBX: 0xffffff8016c49c00, RCX: 0x000000000000000f, RDX: 0x0000000000000001

    RSP: 0xffffff810fa43d80, RBP: 0xffffff810fa43e60, RSI: 0x0000000000000001, RDI: 0x0000000000000007

    R8:  0x0000000000000000, R9:  0x0000000000000da4, R10: 0x0000000000000007, R11: 0x0000000000000da4

    R12: 0x000040c3f119df42, R13: 0x0000000000000002, R14: 0xffffff80e6bc9148, R15: 0x00000000000008f8

    RFL: 0x0000000000010002, RIP: 0xffffff7f87993688, CS:  0x0000000000000008, SS:  0x0000000000000010

    Fault CR2: 0x0000000000000057, Error code: 0x0000000000000000, Fault CPU: 0x0

     

    Backtrace (CPU 0), Frame : Return Address

    0xffffff810fa43a30 : 0xffffff800552ad21

    0xffffff810fa43ab0 : 0xffffff8005616df2

    0xffffff810fa43c70 : 0xffffff8005633ca3

    0xffffff810fa43c90 : 0xffffff7f87993688

    0xffffff810fa43e60 : 0xffffff7f879925b4

    0xffffff810fa43f20 : 0xffffff800561898e

    0xffffff810fa43f40 : 0xffffff8005541deb

    0xffffff810fa43f90 : 0xffffff8005542330

    0xffffff810fa43fb0 : 0xffffff80056116e7

          Kernel Extensions in backtrace:

             com.apple.driver.AppleIntelCPUPowerManagement(218.0)[011D33EF-AFE7-3A6A-AB26-03 00FACB80C3]@0xffffff7f87990000->0xffffff7f879bafff

     

    BSD process name corresponding to current thread: kernel_task

     

    Mac OS version:

    14F1021

     

    Kernel version:

    Darwin Kernel Version 14.5.0: Tue Sep  1 21:23:09 PDT 2015; root:xnu-2782.50.1~1/RELEASE_X86_64

    Kernel UUID: 06D286E3-A8A1-3BE7-A7EB-EAC6E0C69758

    Kernel slide:     0x0000000005200000

    Kernel text base: 0xffffff8005400000

    __HIB  text base: 0xffffff8005300000

    System model name: MacBookPro8,1 (Mac-94245B3640C91C81)

     

    System uptime in nanoseconds: 71210307978580

    last loaded kext at 36338098758277: com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.5 (addr 0xffffff7f87e7a000, size 94208)

    last unloaded kext at 65152023354080: com.apple.driver.AppleHIDKeyboard 176.2 (addr 0xffffff7f87e91000, size 24576)

    loaded kexts:

    com.symantec.kext.SymAPComm 100.1f12

    at.obdev.nke.LittleSnitch 4352

    com.symantec.kext.ips 3.5.1f12

    com.symantec.kext.ndcengine 1.0f2

    com.symantec.kext.internetSecurity 5.2.1f12

    com.apple.filesystems.smbfs 3.0.2

    com.apple.driver.AppleBluetoothMultitouch 85.3

    com.apple.driver.AudioAUUC 1.70

    com.apple.driver.AppleHWSensor 1.9.5d0

    com.apple.iokit.IOBluetoothSerialManager 4.3.6f3

    com.apple.driver.AGPM 110.19.6

    com.apple.filesystems.autofs 3.0

    com.apple.driver.AppleOSXWatchdog 1

    com.apple.driver.AppleMikeyHIDDriver 124

    com.apple.driver.AppleHDA 272.18.3

    com.apple.driver.ApplePolicyControl 3.10.25

    com.apple.driver.AppleUpstreamUserClient 3.6.1

    com.apple.iokit.IOUserEthernet 1.0.1

    com.apple.Dont_Steal_Mac_OS_X 7.0.0

    com.apple.driver.AppleHWAccess 1

    com.apple.driver.AppleHV 1

    com.apple.driver.AppleBacklight 170.7.4

    com.apple.driver.AppleIntelHD3000Graphics 10.0.0

    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.6f3

    com.apple.driver.AppleSMCPDRC 1.0.0

    com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

    com.apple.driver.AppleThunderboltIP 2.0.2

    com.apple.driver.AppleMCCSControl 1.2.12

    com.apple.driver.AppleLPC 1.7.3

    com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

    com.apple.driver.AppleSMCLMU 2.0.7d0

    com.apple.driver.AppleMikeyDriver 272.18.3

    com.apple.driver.AppleIntelSNBGraphicsFB 10.0.0

    com.apple.driver.SMCMotionSensor 3.0.4d1

    com.apple.driver.AppleUSBTCButtons 240.2

    com.apple.driver.AppleUSBTCKeyboard 240.2

    com.apple.driver.AppleIRController 327.5

    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

    com.apple.BootCache 36

    com.apple.iokit.SCSITaskUserClient 3.7.5

    com.apple.driver.XsanFilter 404

    com.apple.iokit.IOAHCIBlockStorage 2.7.1

    com.apple.driver.AppleUSBHub 705.4.2

    com.apple.iokit.AppleBCM5701Ethernet 10.1.3

    com.apple.driver.AirPort.Brcm4331 800.20.24

    com.apple.driver.AppleSDXC 1.6.5

    com.apple.driver.AppleAHCIPort 3.1.2

    com.apple.driver.AppleFWOHCI 5.5.2

    com.apple.driver.AppleUSBEHCI 705.4.14

    com.apple.driver.AppleSmartBatteryManager 161.0.0

    com.apple.driver.AppleACPIButtons 3.1

    com.apple.driver.AppleRTC 2.0

    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.driver.IOBluetoothHIDDriver 4.3.6f3

    com.apple.driver.AppleMultitouchDriver 264.6

    com.apple.iokit.IOSerialFamily 11

    com.apple.AppleGraphicsDeviceControl 3.10.25

    com.apple.kext.triggers 1.0

    com.apple.driver.DspFuncLib 272.18.3

    com.apple.kext.OSvKernDSPLib 1.15

    com.apple.iokit.IOSurface 97.4

    com.apple.iokit.IOFireWireIP 2.2.6

    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.6f3

    com.apple.iokit.IOBluetoothFamily 4.3.6f3

    com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

    com.apple.driver.AppleHDAController 272.18.3

    com.apple.iokit.IOHDAFamily 272.18.3

    com.apple.iokit.IOAudioFamily 203.3

    com.apple.vecLib.kext 1.2.0

    com.apple.iokit.IOUSBUserClient 705.4.0

    com.apple.driver.IOPlatformPluginLegacy 1.0.0

    com.apple.driver.IOPlatformPluginFamily 5.9.1d7

    com.apple.driver.AppleSMBusController 1.0.13d1

    com.apple.driver.AppleSMBusPCI 1.0.12d1

    com.apple.driver.AppleBacklightExpert 1.1.0

    com.apple.iokit.IONDRVSupport 2.4.1

    com.apple.driver.AppleGraphicsControl 3.10.25

    com.apple.iokit.IOGraphicsFamily 2.4.1

    com.apple.driver.AppleSMC 3.1.9

    com.apple.driver.AppleUSBMultitouch 245.2

    com.apple.iokit.IOUSBHIDDriver 705.4.0

    com.apple.driver.AppleUSBMergeNub 705.4.0

    com.apple.driver.AppleUSBComposite 705.4.9

    com.apple.driver.CoreStorage 471.30.1

    com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.5

    com.apple.iokit.IOBDStorageFamily 1.7

    com.apple.iokit.IODVDStorageFamily 1.7.1

    com.apple.iokit.IOCDStorageFamily 1.7.1

    com.apple.driver.AppleThunderboltDPInAdapter 4.0.6

    com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6

    com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

    com.apple.iokit.IOAHCISerialATAPI 2.6.1

    com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5

    com.apple.driver.AppleThunderboltNHI 3.1.7

    com.apple.iokit.IOThunderboltFamily 4.2.2

    com.apple.iokit.IOEthernetAVBController 1.0.3b3

    com.apple.iokit.IO80211Family 730.60

    com.apple.driver.mDNSOffloadUserClient 1.0.1b8

    com.apple.iokit.IONetworkingFamily 3.2

    com.apple.iokit.IOAHCIFamily 2.7.5

    com.apple.iokit.IOFireWireFamily 4.5.8

    com.apple.iokit.IOUSBFamily 720.4.4

    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 398

    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

     

     

     

     

  • by OGELTHORPE,

    OGELTHORPE OGELTHORPE Nov 2, 2015 4:17 AM in response to KeithGParr
    Level 9 (52,776 points)
    Mac OS X
    Nov 2, 2015 4:17 AM in response to KeithGParr

    Rid the MBP of Little Snitch and the Norton AV.  Check the developers web sites for uninstall instructions.

     

    I would also recommend deleting Goolgle Chrome and all of its parts.  It is a resource glutton among browsers.

     

    See if performance improves.

     

    Reset the SMC and NVRAM:

     

    https://support.apple.com/en-us/HT201295

     

    https://support.apple.com/en-us/HT204063

     

    The try a safe boot:

     

    https://support.apple.com/en-us/HT201262

     

    Ciao.

  • by KeithGParr,

    KeithGParr KeithGParr Nov 2, 2015 4:28 AM in response to OGELTHORPE
    Level 1 (0 points)
    Nov 2, 2015 4:28 AM in response to OGELTHORPE

    What's the rationale behind your suggestions, please?

     

    On Chrome, I'm the only one who uses Chrome on the machine, my wife, whose machine it is, uses Firefox exclusively, so I'm inclined to discount it as an issue.  iTunes, Firefox, and Mail are the major uses on the machine, the relative frequency of failures among these is probably a function of their relative frequency of use.

     

    SMC and NVRAM have been reset several times.

     

    I've not tried a safe boot, but it could be weeks (or days, or seconds!) before the fault recurs.  Meanwhile the machine is not fully functional.

     

    You seem to be suspecting a software problem, what leads you to that conclusion please?

     

    Keith

  • by KeithGParr,

    KeithGParr KeithGParr Nov 2, 2015 4:49 AM in response to OGELTHORPE
    Level 1 (0 points)
    Nov 2, 2015 4:49 AM in response to OGELTHORPE

    I could / should perhaps add that when I return the machine to the Genius Bar I put the original 320G disk in it with a clean install of Yosemite and nothing else.  The fault still occurs.

     

    Keith

  • by OGELTHORPE,

    OGELTHORPE OGELTHORPE Nov 2, 2015 9:48 AM in response to KeithGParr
    Level 9 (52,776 points)
    Mac OS X
    Nov 2, 2015 9:48 AM in response to KeithGParr

    When I see software installed that is not necessary and can very well be detrimental to the operation of a MBP, I point that out to the user.  Should you have doubts about my recommendations, search these forums and determine what others have said about the items in question.

     

    KeithGParr wrote:

     

    You seem to be suspecting a software problem, what leads you to that conclusion please?

     

     

    Actually not the case, though software may be the issue.  Usually the HDD is the 'problem child' hence the Safe Boot\ suggestion.  Perhaps you should boot into the recovery partition, select Disk Utility from the 4 option menu and run FIRST AID.  I would do it even though you indicate that the reinstall of the 320GB HDD does not solve the problem.

     

    Ciao.

  • by John Galt,

    John Galt John Galt Nov 2, 2015 10:46 AM in response to KeithGParr
    Level 9 (50,389 points)
    Mac OS X
    Nov 2, 2015 10:46 AM in response to KeithGParr

    Non-Apple "anti-virus" software serves no beneficial purpose on a Mac. Get rid of it. It can only cause problems, or exacerbate existing ones. Read for yourself why Symantec's own VP of information security recently declared "anti-virus" software "dead".

     

    One or more of the following may be applicable:

     

    Uninstall Norton Internet Security for Mac

     

    Removing Symantec programs for Macintosh by using the RemoveSymantecMacFiles removal utility

     

    RemoveSymantecMacFiles

  • by KeithGParr,

    KeithGParr KeithGParr Nov 2, 2015 11:18 AM in response to John Galt
    Level 1 (0 points)
    Nov 2, 2015 11:18 AM in response to John Galt

    Unfortunately, the WSJ article seems to be behind a pay wall.

     

    The AV gives me occasional warnings about files and web sites, I think I'll hang on for a while before going naked on the net!

     

    I have it installed on all three machines (and many more before these) without problems.

     

    As the problem occurs with and without the AV installed, the AV seems unlikely to be be the culprit in this case.

     

    Keith

  • by KeithGParr,

    KeithGParr KeithGParr Nov 2, 2015 11:32 AM in response to OGELTHORPE
    Level 1 (0 points)
    Nov 2, 2015 11:32 AM in response to OGELTHORPE

    I'm interested in the idea of the HD being the problem child, it sort of ties in to the Apple Genius first thought that the problem was a disk cable - although that proved not to be the case.

     

    I struggle to see how the HD could be the issue in this case as it happens with two separate HDs, one of which has a clean install of Yosemite on it.

     

    I'd like to be clear on why a safe boot would be of use in the case of a HD failure.  As I understand it, a safe boot starts the machine in "minimum configuration", non-Apple kernel extensions and so on disabled.  How would this impact a possible disk problem?

     

    During the course of this adventure I bought a further essentially identical MBP which I have used as an "in case" backup.  This evening I'm going to swap the HDs of the two machines and see where the fault presents itself.

     

    Is there anything to be deduced from the error report which might help?

     

    Keith

  • by OGELTHORPE,

    OGELTHORPE OGELTHORPE Nov 2, 2015 12:16 PM in response to KeithGParr
    Level 9 (52,776 points)
    Mac OS X
    Nov 2, 2015 12:16 PM in response to KeithGParr

    KeithGParr wrote:

     

    I'd like to be clear on why a safe boot would be of use in the case of a HD failure.  As I understand it, a safe boot starts the machine in "minimum configuration", non-Apple kernel extensions and so on disabled.  How would this impact a possible disk problem?

     

    Then you have not read the Apple support article carefully:Screen Shot 2015-11-02 at 3.05.08 PM.png

    During the course of this adventure I bought a further essentially identical MBP which I have used as an "in case" backup.  This evening I'm going to swap the HDs of the two machines and see where the fault presents itself.

     

    In general, that sounds like a good idea.

    Is there anything to be deduced from the error report which might help?

     

    What error report are you referring to?

     

    Ciao.

  • by KeithGParr,

    KeithGParr KeithGParr Nov 2, 2015 12:51 PM in response to OGELTHORPE
    Level 1 (0 points)
    Nov 2, 2015 12:51 PM in response to OGELTHORPE

    Thanks for clarifying the additional benefits of safe mode.  Do you happen to know whether the tests done during safe mode start up are any different from those run by the Apple Disk Utility?  Disk Utility and Disk Warrior both give the startup disk a clean bill of health.

     

    Additionally, these would be software tests wouldn't they?  Consistency of the disk content, correct directory information, correct free space tables and so on?  When you mentioned the disk as the possible / probable problem I read into that that you were suspecting a hardware fault.

     

    After each failure I run Disk Utility but this has yet to indicate a problem.  I also run DiskWarrior from another boot drive, this occasionally finds errors eg in the volume information which I have been assuming were caused by the crash, rather than the cause of it.  As that's an assumption, it could be wrong.

     

    Sometimes the failure / restart happens very early in the startup sequence, maybe a few seconds into the process.  Obviously I cannot capture any problem reports for such failures but they do suggest (to me) something other than a software problem.  I accept of course that serious disk corruption in the initial boot accesses could cause the problem, but as the disk *appears to be* normally OK this seems unlikely.

     

    The error report to which I referred was the one I posted above in this message:

     

    Nov 2, 2015 3:50 AM

     

    underneath the etrecheck.

     

    Keith

  • by John Galt,

    John Galt John Galt Nov 2, 2015 1:09 PM in response to KeithGParr
    Level 9 (50,389 points)
    Mac OS X
    Nov 2, 2015 1:09 PM in response to KeithGParr

    KeithGParr wrote:

     

    The AV gives me occasional warnings about files and web sites, I think I'll hang on for a while before going naked on the net!

     

    Yet you are using Google Chrome, a product that infests your Mac at a privileged level in the same manner as a "virus", harvesting your personal information and constantly uploading it to Google, so they can sell it. Google "cognitive dissonance".

     

    None of my Macs use any non-Apple "anti-virus" garbage. Most of them are connected to the Internet all the time, so logically they are vulnerable to those same dangerous files and websites as yours. I wonder what I'm missing?

  • by KeithGParr,

    KeithGParr KeithGParr Nov 2, 2015 1:41 PM in response to John Galt
    Level 1 (0 points)
    Nov 2, 2015 1:41 PM in response to John Galt

    You're obviously missing viruses and attacks, lucky you, long may it remain so.  I hope you never have the inconvenience of having to sort out the consequences of any nasties.

     

    Keith

  • by John Galt,

    John Galt John Galt Nov 2, 2015 2:34 PM in response to KeithGParr
    Level 9 (50,389 points)
    Mac OS X
    Nov 2, 2015 2:34 PM in response to KeithGParr

    You're the one having to sort out the consequences of installing totally ineffective and useless garbage on your Mac. The effects of it are worse than the illusory "viruses and attacks" you fear. As long as "Symantec" products remain installed, your Mac cannot be maintained.

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