there must be an easier way
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Q: Mac Mini running OS X Server unresponsive

I have a Mac mini (Late 2012), Processor 2.3 GHz Intel Core i7, Memory 4 GB 1600 MHz DDR3 that runs OS X Server 5.1.7.

 

Twice recently (I think since the upgrade to Server 5.1.7) the machine has become completely unresponsive and I have had to reboot it. On both occasions the fan was blowing full blast.

 

After the second occurrence I poked around in the log files a bit. In system.log I found the following, which had been repeating for hours:

 

     Aug  4 10:06:11 s-mx-01 configd[88]: could not allocate mach port: (os/kern) no space available

 

I went back and tried to find out when it had started and found this:

 

     Aug  3 18:05:44 s-mx-01 configd[88]: BUG in libdispatch: 15G31 - 384 - 0x1000600c

     Aug  3 18:05:44 s-mx-01 configd[88]: could not allocate mach port: (os/kern) no space available

 

Does anyone have any idea what this might mean?

 

Steve

Mac mini, OS X El Capitan (10.11.6)

Posted on Aug 4, 2016 2:04 AM

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there must be an easier way

Q: Mac Mini running OS X Server unresponsive

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  • by there must be an easier way,

    there must be an easier way there must be an easier way Aug 10, 2016 4:43 AM in response to there must be an easier way
    Level 1 (8 points)
    Apple TV
    Aug 10, 2016 4:43 AM in response to there must be an easier way

    This has happened again with similar symptoms. Does anyone have any idea how to deal with it?

  • by Erich Wetzel,Helpful

    Erich Wetzel Erich Wetzel Aug 10, 2016 2:59 PM in response to there must be an easier way
    Level 2 (341 points)
    Aug 10, 2016 2:59 PM in response to there must be an easier way

    I have 4 late 2012 Mini servers. I have had hard drive failures in 3 out of the 4 during 2016. We are starting to take bets on when a drive in the last one fails. Check you disks and make sure you do not have any I/O errors happening. The drive failures led to problems like those you are describing.

  • by there must be an easier way,

    there must be an easier way there must be an easier way Aug 17, 2016 5:28 AM in response to Erich Wetzel
    Level 1 (8 points)
    Apple TV
    Aug 17, 2016 5:28 AM in response to Erich Wetzel

    Thanks for this feedback. I checked the disk (including a complete scan) and there were no errors.

  • by Mark Vanston,

    Mark Vanston Mark Vanston Aug 27, 2016 3:18 AM in response to there must be an easier way
    Level 1 (14 points)
    Aug 27, 2016 3:18 AM in response to there must be an easier way

    Hi Steve,

     

    I've got exactly the same problem. I see "BUG in libdispatch" and then continuous "could not allocate mach port". I also checked the server stats and see the CPU jump to over 50%. All network connectivity also stops at the same time as well.

     

    From system.log

    Aug 27 00:02:59 MacMini configd[62]: BUG in libdispatch: 15G31 - 384 - 0x1000600c

    Aug 27 00:02:59 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:03:29 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:03:59 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:04:29 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:04:59 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:05:29 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:05:59 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:06:29 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:06:59 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:07:29 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:07:59 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:08:30 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:09:01 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

    Aug 27 00:09:31 MacMini configd[62]: could not allocate mach port: (os/kern) no space available

     

    Currently looking into the libdispatch problem, will let you know if I come across a solution.

     

    It's only just started happening in the last few weeks (months?). I've noticed I need to reset the server (MacMini), but only just started looking into the problem

     

    Mark.

  • by there must be an easier way,

    there must be an easier way there must be an easier way Sep 5, 2016 12:57 AM in response to Mark Vanston
    Level 1 (8 points)
    Apple TV
    Sep 5, 2016 12:57 AM in response to Mark Vanston

    I finally managed to log into the system while it was manifesting the problem. configd was running at around 120% CPU and there were a lot (>40) smtpd processes in various states.

     

    Not sure yet what this all means.