mauro16

Q: mac pro late 2013 freezes with spinning wheel

i bought a mac pro (late 2013) 50 days ago, os is yosemite 10.10.3. I often get the spinning wheel of death and the mac freezes, i.e. it doesn't react to mouse click or keyboard. it happens on average 1 time a day. When it happens i have to restart the machine by pressing the computer's power button.

I have already contacted apple support by phone, i have made many reset operations under their control, but nothing changed.

 

After the restart, when i examine the console log the last message before the reboot is often the following one

 

windowserver: surface testing disallowed updates for 10 sequential attempts

 

By searching this message on google i found that the problem might be related with the energy saving settings, i.e. it happens when the mac wakes from sleep. So i changed those settings to prevent the mac going on stop state, and today the problem did not happen, but i'm not sure what wil happen tomorrow ... so i'm looking for information/advice about this kind of problem.

Mac Pro (Late 2013), OS X Yosemite (10.10.3)

Posted on May 16, 2015 12:19 PM

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Q: mac pro late 2013 freezes with spinning wheel

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  • by Linc Davis,

    Linc Davis Linc Davis May 16, 2015 6:01 PM in response to mauro16
    Level 10 (207,963 points)
    Applications
    May 16, 2015 6:01 PM in response to mauro16

    Can you still reproduce the problem? If not, there's nothing to do.

  • by mauro16,

    mauro16 mauro16 May 17, 2015 3:53 AM in response to Linc Davis
    Level 1 (5 points)
    Desktops
    May 17, 2015 3:53 AM in response to Linc Davis

    it happened again, i left the mac inactive for about 40 minutes, i found the screensaver active and frozen in a fixed position. When i clicked the mouse i got the beach ball. As usual, i was able to move the mouse pointer but any other action was ineffective. This time i disabled the screensaver, i don't know if this makes sense.

     

    This time the log provides more information

     

    17/05/15 12:16:24,000 kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

    17/05/15 12:16:24,621 WindowServer[136]: Surface testing disallowed updates for 10 sequential attempts...

    17/05/15 12:16:29,000 kernel[0]: [6:0:0] GPU HangState 0x00000000, HangFlags 0x00000006: IndividualEngineHang 0, NonEngineBlockHang 1, FenceNotRetired 1, PerEngineReset 0, FullAsicReset 1

    17/05/15 12:16:29,000 kernel[0]: ** GPU ASIC Log Start **

     

    .....

     

    17/05/15 12:16:30,000 kernel[0]: : ** GPU Debug Info End **

    17/05/15 12:16:30,000 kernel[0]: ------------------------

    17/05/15 12:16:30,000 kernel[0]: GPURestartReportEnd

    17/05/15 12:16:30,000 kernel[0]: Trying restart GPU ...

    17/05/15 12:16:30,604 DumpGPURestart[434]: Saved gpuRestart report for kernel to /Library/Logs/DiagnosticReports/Kernel_2015-05-17-121630_Mac-Pro-di-Mauro.gpuRe start

    17/05/15 12:21:14,000 kernel[0]: process WindowServer[136] caught causing excessive wakeups. Observed wakeups rate (per sec): 200; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 114422

    17/05/15 12:21:14,635 com.apple.xpc.launchd[1]: (com.apple.ReportCrash.Root[436]) Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.ReportCrash.DirectoryService

    17/05/15 12:21:15,112 spindump[359]: Saved wakeups_resource.diag report for WindowServer version ??? (???) to /Library/Logs/DiagnosticReports/WindowServer_2015-05-17-122115_Mac-Pro-di-Mauro .wakeups_resource.diag

    17/05/15 12:30:21,142 com.apple.xpc.launchd[1]: assertion failed: 14D136: launchd + 163781 [7F885D63-B284-3471-B6E3-172489232C37]: 0xe

    17/05/15 12:30:21,142 com.apple.xpc.launchd[1]: assertion failed: 14D136: launchd + 163781 [7F885D63-B284-3471-B6E3-172489232C37]: 0xe

    17/05/15 12:30:38,228 Office365Service[438]: WARNING: The Gestalt selector gestaltSystemVersion is returning 10.9.3 instead of 10.10.3. Use NSProcessInfo's operatingSystemVersion property to get correct system version number.

    Call location:

    17/05/15 12:30:38,228 Office365Service[438]: 0   CarbonCore                          0x988d6291 ___Gestalt_SystemVersion_block_invoke + 135

    17/05/15 12:30:38,228 Office365Service[438]: 1   libdispatch.dylib                   0x94fb7130 _dispatch_client_callout + 50

    17/05/15 12:30:38,228 Office365Service[438]: 2   libdispatch.dylib                   0x94fb70b5 dispatch_once_f + 251

    17/05/15 12:30:38,228 Office365Service[438]: 3   libdispatch.dylib                   0x94fb80d8 dispatch_once + 31

    17/05/15 12:30:38,228 Office365Service[438]: 4   CarbonCore                          0x9884f69d _Gestalt_SystemVersion + 1050

    17/05/15 12:30:38,228 Office365Service[438]: 5   CarbonCore                          0x9884e7c0 Gestalt + 150

    17/05/15 12:30:38,228 Office365Service[438]: 6   Office365Service                    0x00058977 Office365Service + 358775

    17/05/15 12:34:19,170 WindowServer[136]: disable_update_timeout: UI updates were forcibly disabled by application "loginwindow" for over 1.00 seconds. Server has re-enabled them.

    17/05/15 12:34:33,171 WindowServer[136]: disable_update_likely_unbalanced: UI updates still disabled by application "loginwindow" after 15.00 seconds (server forcibly re-enabled them after 1.00 seconds). Likely an unbalanced disableUpdate call.

  • by Linc Davis,

    Linc Davis Linc Davis May 17, 2015 5:33 AM in response to mauro16
    Level 10 (207,963 points)
    Applications
    May 17, 2015 5:33 AM in response to mauro16

    The unit is defective and must be serviced under the warranty.

    Make a "Genius" appointment at an Apple Store, or go to another authorized service provider. You may have to leave the machine there for several days.

    Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional—ask if you need guidance.

    If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

    Keeping your confidential data secure during hardware repair

    Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.

    *An SSD doesn't need to be zeroed.

  • by TomWheel,

    TomWheel TomWheel May 17, 2015 9:33 AM in response to mauro16
    Level 2 (275 points)
    May 17, 2015 9:33 AM in response to mauro16

    I have had a fully maxed out Late 2013 Mac Pro since mid-January of 2014.  I have a lot of software installed on it and use it for video editing, etc.  About two weeks ago, I started getting spinning beach balls indicating cpu activity that lasted for anywhere from 10-30 seconds or more.  They would always go away, but I had certainly never seen that behavior on this Mac Pro before.  I went to Disk Utility and ran Verify Disk.  It failed and gave instructions in red to boot in recovery mode and then run Repair Disk.  I did, my PCIe flash HD was repaired by this procedure and gave no errors when I ran Verify Disk again.  I have not had a single instance of a spinning beach ball since.

     

    Tom

  • by mauro16,

    mauro16 mauro16 Jun 7, 2015 2:56 PM in response to Linc Davis
    Level 1 (5 points)
    Desktops
    Jun 7, 2015 2:56 PM in response to Linc Davis

    i went to an authorized service provider, they say thet cannot find any defect in the unit and it needs not to be repaired. They say the freezing may depend on peripherals that are connected or adapter cables.

     

    So i got back the unit, it worked ok for more than 2 days and then it had again the problem (suddenly after waking up from stop). The log always displays a message

     

    process WindowServer[136] caught causing excessive wakeups


    My configuration is

     

    - apple keyboard

    - apple wireless mouse

    - display is a dell U2713HM, 27 inches, resolution 2560x1440

    - modem-router tp-link TD-8840T connected through ethernet port

     

    The monitor is attached to the thunderbolt port using a startech adapter from mini displayport 1.2 to displayport 4K

    http://www.amazon.it/gp/product/B0081ZBNCA

     

    We are thinking the adapter might be defective, is this a reasonable conjecture? Which is a correct adapter to use to connect that monitor to the mac pro? I want to maintain the maximum resolution and this is possible only through the displayport or dvi port of the monitor.

  • by Klaus1,

    Klaus1 Klaus1 Jun 7, 2015 3:28 PM in response to mauro16
    Level 8 (48,821 points)
    Jun 7, 2015 3:28 PM in response to mauro16

    Useful article here on the causes of the Spinning Beach Ball and how to troubleshoot it:

     

    http://www.computerworld.com/s/article/9177479/Troubleshoot_the_spinning_beach_b all?taxonomyId=89&pageNumber=1

     

    and also this:

     

    http://www.thexlab.com/faqs/sbbod.html

  • by mauro16,

    mauro16 mauro16 Jun 12, 2015 11:15 AM in response to mauro16
    Level 1 (5 points)
    Desktops
    Jun 12, 2015 11:15 AM in response to mauro16

    I tried with another adapter and with another monitor, the problem is still there. Today it happened two times, the first time i was scrolling over an internet page (the main page of this forum, actually), the second time i downloaded a pdf file in my email and i was scrolling over that file. So the scroll operation seems critical. In the log i find something like



    12/06/15 19:27:10,359 com.apple.WebKit.Networking[401]: Stream 0x7fe70a4885d0 is sending an event before being opened

    12/06/15 19:27:15,991 com.apple.WebKit.Networking[401]: Stream 0x7fe70b028510 is sending an event before being opened

    12/06/15 19:27:16,592 com.apple.WebKit.Networking[401]: Stream 0x7fe70b3b5960 is sending an event before being opened

    12/06/15 19:28:15,433 com.apple.WebKit.Networking[401]: Stream 0x7fe70b34feb0 is sending an event before being opened

    12/06/15 19:28:15,552 com.apple.WebKit.Networking[401]: Stream 0x7fe70a4586f0 is sending an event before being opened

    12/06/15 19:28:31,685 com.apple.WebKit.Networking[401]: Stream 0x7fe70b011a20 is sending an event before being opened

    12/06/15 19:28:31,689 com.apple.WebKit.Networking[401]: Stream 0x7fe70a61b740 is sending an event before being opened

    12/06/15 19:28:39,517 CoreServicesUIAgent[369]: Error -60005 creating authorization

    12/06/15 19:28:40,377 com.apple.Preview.TrustedBookmarksService[465]: Failure to de-serialize bookmark data file.

    12/06/15 19:32:25,364 spindump[380]: Saved wakeups_resource.diag report for WindowServer version ??? (???) to /Library/Logs/DiagnosticReports/WindowServer_2015-06-12-193225_Mac-Pro-di-Mauro .wakeups_resource.diag

     



    and the 'wakeups report' begins like that

     


    Date/Time: 2015-06-12 19:27:31 +0200

    OS Version: 10.10.3 (Build 14D136)

    Architecture: x86_64

    Report Version: 19

     

    Command: WindowServer

    Path: /System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphic s.framework/Resources/WindowServer

    Version: ??? (???)

    Parent: launchd [1]

    PID: 141

     

    Event:           wakeups (microstackshots only)

    Wakeups:         155 wakeups per second for 291 seconds

    Duration:        291.00s

    Steps:           280

     

    Hardware model: MacPro6,1

    Active cpus: 8

     

    Fan speed: 789 rpm

     

    Powerstats for: WindowServer [141]

    Start time: 2015-06-12 19:28:25 +0200

    End time: 2015-06-12 19:32:17 +0200

    Parent: launchd

    Microstackshots: 70 samples (25%)

    Primary state: 35 samples Non-Frontmost App, User mode, Thread QoS Unspecified

    User Activity: 0 samples Idle, 70 samples Active

    Power Source: 0 samples on Battery, 70 samples on AC

      68 start + 1 (libdyld.dylib) [0x7fff912ea5c9]

        68 ??? (WindowServer + 3966) [0x103fc9f7e]

          68 CGXServer + 839 (CoreGraphics) [0x7fff90ee598b]

            35 CGXRunOneServicesPass + 1291 (CoreGraphics) [0x7fff90ee55a1]

    35 post_port_data + 237 (CoreGraphics) [0x7fff90ee6baa]

    35 eventNotificationHandler + 9 (CoreGraphics) [0x7fff90ef17d4]

    35 CGXRunOneEventPass + 38 (CoreGraphics) [0x7fff90eef4da]

    34 CGXGetNextEvent + 493 (CoreGraphics) [0x7fff90b9422e]

    34 CGXFilterEvent + 81 (CoreGraphics) [0x7fff90c35edd]

                        34 CGXProcessHIDEvent + 161 (CoreGraphics) [0x7fff90eef295]

                          34 CGXFilterEvent + 81 (CoreGraphics) [0x7fff90c35edd]

                            34 sPostContinuation + 7230




    I tried almost everything, i changed mouse, changed keyboard. It seems the problem could be labeled as a 'wakeups problem'. I am also thinking the unit is defective but at the apple support center they could not find anything to repair, may be a deeper analysis is needed.

  • by mauro16,

    mauro16 mauro16 Jun 12, 2015 3:13 PM in response to mauro16
    Level 1 (5 points)
    Desktops
    Jun 12, 2015 3:13 PM in response to mauro16

    EtreCheck version: 2.2 (132)

    Report generated 6/13/15, 12:11 AM

    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: ℹ️

        Mac Pro (Late 2013) (Technical Specifications)

        Mac Pro - model: MacPro6,1

        1 3.7 GHz Quad-Core Intel Xeon E5 CPU: 4-core

        12 GB RAM Upgradeable

            DIMM1

                4 GB DDR3 ECC 1866 MHz ok

            DIMM2

                4 GB DDR3 ECC 1866 MHz ok

            DIMM3

                4 GB DDR3 ECC 1866 MHz ok

            DIMM4

                Empty  

        Bluetooth: Good - Handoff/Airdrop2 supported

        Wireless:  en2: 802.11 a/b/g/n/ac

     

    Video Information: ℹ️

        AMD FirePro D300 - VRAM: 2048 MB

        AMD FirePro D300 - VRAM: 2048 MB

            227E4LH 1920 x 1080

     

    System Software: ℹ️

        OS X 10.10.3 (14D136) - Time since boot: 4:34:39

     

    Disk Information: ℹ️

        APPLE SSD SM0256F disk0 : (251 GB)

            EFI (disk0s1) <not mounted> : 210 MB

            Macintosh HD (disk0s2) / : 250.14 GB (230.17 GB free)

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

     

    USB Information: ℹ️

        Apple Inc. BRCM20702 Hub

            Apple Inc. Bluetooth USB Host Controller

        Apple, Inc. Keyboard Hub

            Apple Inc. Apple Keyboard

     

    Thunderbolt Information: ℹ️

        Apple Inc. thunderbolt_bus_2

        Apple Inc. thunderbolt_bus_1

        Apple Inc. thunderbolt_bus_0

     

    Gatekeeper: ℹ️

        Mac App Store and identified developers

     

    Problem System Launch Daemons: ℹ️

        [failed]    com.apple.mtrecorder.plist

     

    Launch Daemons: ℹ️

        [failed]    com.apple.spirecorder.plist

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

     

    User Login Items: ℹ️

        Dropbox    Applicazione  (/Applications/Dropbox.app)

     

    Internet Plug-ins: ℹ️

        Default Browser: Version: 600 - SDK 10.10

        QuickTime Plugin: Version: 7.7.3

        SharePointBrowserPlugin: Version: 14.5.1 - SDK 10.6 [Click for support]

     

    3rd Party Preference Panes: ℹ️

        None

     

    Time Machine: ℹ️

        Time Machine not configured!

     

    Top Processes by CPU: ℹ️

             3%    fontd

             2%    WindowServer

             0%    taskgated

             0%    mdworker(4)

             0%    cloudpaird

     

    Top Processes by Memory: ℹ️

        1.94 GB    com.apple.WebKit.WebContent(12)

        766 MB    kernel_task

        135 MB    Safari

        86 MB    Dropbox

        86 MB    Finder

     

    Virtual Memory Information: ℹ️

        6.94 GB    Free RAM

        5.06 GB    Used RAM

        0 B    Swap Used

     

    Diagnostics Information: ℹ️

        Jun 12, 2015, 07:36:56 PM    Self test - passed

  • by mauro16,

    mauro16 mauro16 Jun 29, 2015 3:20 PM in response to mauro16
    Level 1 (5 points)
    Desktops
    Jun 29, 2015 3:20 PM in response to mauro16

    I am still getting freezings. The new thing is now that about 1 hour ago i had a beach ball but this time i was able to regain control of the mac. In fact i disconnected the monitor from the thunderbolt port and reconnected it, and this way the mac was able again to react to mouse and keyboard. This should provide some hint where the problem is, could the graphic card(s) be defective? This is the console log

     

    un 29 23:18:43 Mac-Pro-di-Mauro kernel[0]: process WindowServer[156] caught causing excessive wakeups. Observed wakeups rate (per sec): 1577; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 426134

    Jun 29 23:18:43 Mac-Pro-di-Mauro com.apple.xpc.launchd[1] (com.apple.ReportCrash.Root[913]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.ReportCrash.DirectoryService

    Jun 29 23:18:43 Mac-Pro-di-Mauro.local ReportCrash[913]: Invoking spindump for pid=156 wakeups_rate=1577 duration=29 because of excessive wakeups

    Jun 29 23:18:44 Mac-Pro-di-Mauro.local spindump[647]: Error loading dyld shared cache uuid 00000000-0000-0000-0000-000000000000: 0x8

    Jun 29 23:18:44 Mac-Pro-di-Mauro.local spindump[647]: Saved wakeups_resource.diag report for WindowServer version ??? (???) to /Library/Logs/DiagnosticReports/WindowServer_2015-06-29-231844_Mac-Pro-di-Mauro .wakeups_resource.diag

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Received display connect changed for display 0x3f003c

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Found 1 modes for display 0x003f003c [1, 0]

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Received display connect changed for display 0x3f003d

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Found 1 modes for display 0x003f003d [1, 0]

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Received display connect changed for display 0x3f003e

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Found 1 modes for display 0x003f003e [1, 0]

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Received display connect changed for display 0x3f003f

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Found 1 modes for display 0x003f003f [1, 0]

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Received display connect changed for display 0x3f0040

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Found 1 modes for display 0x003f0040 [1, 0]

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Received display connect changed for display 0x43300c0d

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Found 1 modes for display 0x43300c0d [1, 0]

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Display 0x43300c0d changed state to offline

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: No display devices are on-line. Switching to virtual display mode

    Jun 29 23:18:53 Mac-Pro-di-Mauro.local WindowServer[156]: Surface test allowed updates after 40495 attempts

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jun 29, 2015 4:50 PM in response to mauro16
    Level 9 (60,909 points)
    Desktops
    Jun 29, 2015 4:50 PM in response to mauro16

    So what is this failed-to-load software supposed to be driving?

     

    Problem System Launch Daemons: ℹ️

        [failed]    com.apple.mtrecorder.plist

     

    Launch Daemons: ℹ️

        [failed]    com.apple.spirecorder.plist

  • by mauro16,

    mauro16 mauro16 Jun 29, 2015 6:33 PM in response to Grant Bennet-Alder
    Level 1 (5 points)
    Desktops
    Jun 29, 2015 6:33 PM in response to Grant Bennet-Alder

    i don't know what this means, if this needs to be fixed, and how to fix ..

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jun 29, 2015 7:29 PM in response to mauro16
    Level 9 (60,909 points)
    Desktops
    Jun 29, 2015 7:29 PM in response to mauro16

    More research tends to indicate those are stubs left over from iOS, they do nothing on the Mac, and not to worry. Sorry to alarm you for what seems to be nothing.

  • by Mac_Gyver,

    Mac_Gyver Mac_Gyver Jul 23, 2015 1:52 PM in response to mauro16
    Level 1 (10 points)
    Jul 23, 2015 1:52 PM in response to mauro16

    Hi mauro16,

    is there any new information about your problem so far?

    I have the same problem with my new MacPro 2013.

    The log states:

    Jul 01 11:55:11 Shiva kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

    ...

    Jul 01 13:27:39 Shiva kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

    ...

    Jul 02 23:02:00 Shiva kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

    ...

    Jul 08 09:17:44 Shiva kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

    ...

    Jul 08 18:34:51 Shiva kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

    ...

    Jul 09 09:18:05 Shiva kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

    ...

    Jul 23 11:54:05 Shiva kernel[0]: Sound assertion - 1002:aab0 FIFO error (Stream 0)

     

    occasionally in different working conditions. Overall i had about 20 freezes over the last 40 days.

    Today it happened again after 14days.

    The Mac works fine, all shares are available, all attached clients can use the printer and even login in via SSH is fine.

    When i first encountered the error i rebooted the MAC via SSH or by pushing the power button. I even tried killing the windowServer.

     

    I now found a way to deal with the problem:

    The Mac sleep mode does the trick. When it turns off the Monitor, pressing a key on the keyboard works wonders.

    The Monitor lights up and everything works fine after that.

    ... until the next time...

     

    Apple support urged me to bring it to an authorized service partner which I did. They didn't find anything.

    Maybe someday some1 finds a solution.

     

    Mac Pro (Late 2013), OS X Yosemite (10.10.4) AMD Fire Pro D300

  • by mauro16,

    mauro16 mauro16 Jul 24, 2015 2:16 PM in response to Mac_Gyver
    Level 1 (5 points)
    Desktops
    Jul 24, 2015 2:16 PM in response to Mac_Gyver

    I'm not sure to understand how you deal with the problem. When i get the freezing, i cannot put the mac in sleep mode because it doesn't respond to mouse click and keyboard.

     

    I am still getting the freezing, typically in the log i find something like the following (it's the one i got today, but it's always the same)

     

    Jul 24 18:17:52 Mac-Pro-di-Mauro kernel[0]: process WindowServer[153] caught causing excessive wakeups. Observed wakeups rate (per sec): 916; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 292187

    Jul 24 18:17:52 Mac-Pro-di-Mauro com.apple.xpc.launchd[1] (com.apple.ReportCrash.Root[619]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.ReportCrash.DirectoryService

     

    The problem always happens when i am connected to the internet, and typically when i am browsing the internet. I used the mac without an internet connection for two days and the problem did not happen. Of course it may depend on the fact that when i am not using the internet my activities do not put the mac under stress, or it might depend on some unknown problem in my internet configuration.

     

    I read this discussion

     

    Only specific OS freezes on certain internet connections

     

    where that author suggests to turn off ipv6. Actually under network > .. > tcp/ip i found three options 'Automatically', 'Manually', 'Link-local only'. I cannot find the 'off' option. I tried to select 'Link local' but i continue to get the error. I also reconfigured the modem-router and i continue to get the error.

     

    Someone suggest to use the command line to turn off ipv6, like this

     

    networksetup -setv6off wi-fi

    networksetup -setv6off ethernet

     

    Maybe i will also try this, anyway some articles suggest that turning off ipv6 is wrong, so i don't know.

     

    Other things i found are

    - typically the freezing happens after 5-6 hours from the boot time

    - when the freezing happens i can manage it by removing the display cable from the thunderbolt port and then reconnect it. At this point if i open the activity monitor i see for some seconds processes like 'kernel_task' and WindowServer with thousands of idle wake ups. Then i have to reboot the mac because it has a bad performance.

     

    I recently reinstalled the os but it didn't solve the problem.

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