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Dock uses 320% CPU after 10.7.2 update

12905 Views 46 Replies Latest reply: Sep 4, 2013 3:07 PM by J.Kubi RSS
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CoolDixon Calculating status...
Currently Being Moderated
Oct 14, 2011 3:11 AM

   After upgrading to 10.7.2, and after some time suddenly Dock takes all the CPU and gets unresponsible. killall Dock on terminal does not seem to really kill the task, so I have to reboot to get it solved. After some time the problem repeats.

 

Console events are quite concerning:

 

14/10/11 11:11:08,045 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,046 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,046 coreservicesd: FMOD WATCH EVENTS DROPPED!

14/10/11 11:11:08,048 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,048 coreservicesd: FMOD WATCH EVENTS DROPPED!

14/10/11 11:11:08,067 com.apple.launchd.peruser.501: (com.apple.pbs) Throttling respawn: Will start in 1 seconds

14/10/11 11:11:08,071 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,071 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,071 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,082 coreservicesd: FMOD WATCH EVENTS DROPPED!

14/10/11 11:11:08,104 com.apple.launchd.peruser.501: (com.apple.pbs) Throttling respawn: Will start in 1 seconds

14/10/11 11:11:08,128 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,128 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,128 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,155 coreservicesd: FMOD WATCH EVENTS DROPPED!

14/10/11 11:11:08,155 coreservicesd: FMOD WATCH EVENTS DROPPED!

14/10/11 11:11:08,155 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,155 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,155 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,155 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,178 com.apple.launchd.peruser.501: (com.apple.pbs) Throttling respawn: Will start in 1 seconds

14/10/11 11:11:08,175 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,175 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,178 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,178 mds: (Error) FMW: WE ARE DROPPING FMW EVENTS!

14/10/11 11:11:08,181 coreservicesd: FMOD WATCH EVENTS DROPPED!

14/10/11 11:11:08,181 coreservicesd: FMOD WATCH EVENTS DROPPED!

 

Any idea on what can I do to solve it?

MacBook Pro, Mac OS X (10.7.2)
  • putnik Level 3 Level 3 (620 points)
    Currently Being Moderated
    Oct 14, 2011 3:31 AM (in response to CoolDixon)

    Maybe these threads will help you too?  I would open Activity Monitor and see if you can identify the process. Google has a few posts about this error message. Dropbox and Dolly Drive are mentioned.

     

    https://discussions.apple.com/thread/2014732?threadID=2014732

     

     

    http://forums.dropbox.com/topic.php?id=18443

  • donreith Level 1 Level 1 (20 points)
    Currently Being Moderated
    Oct 14, 2011 10:42 AM (in response to CoolDixon)

    I'm currently experiencing this. For me, it seems to be related to Mail.  As soon as I open Mail the Dock starts consuming CPU and RAM. Then the fan comes on. When I quit Mail, after a minute or two Dock settles back down to normal.

     

    Still investigating....

  • putnik Level 3 Level 3 (620 points)
    Currently Being Moderated
    Oct 14, 2011 1:04 PM (in response to CoolDixon)

    One other idea is Google Talk video plugin was causing problems...

     

    https://discussions.apple.com/message/16364590#16364590

  • donreith Level 1 Level 1 (20 points)
    Currently Being Moderated
    Oct 14, 2011 3:33 PM (in response to donreith)

    I deleted my Mail account (Exchange) and any cruft left in Library/Mail.  Opening Mail no longer affected Dock.  Recreated Exchange account then left to go to a meeting. An hour and a half later Dock was pegging CPU and taking 32GB of VM. Not good...

  • donreith Level 1 Level 1 (20 points)
    Currently Being Moderated
    Oct 15, 2011 12:57 PM (in response to CoolDixon)

    i'm running Fusion 4.0.2 as well. going to investigate today to see if it is playing in role in this.

  • cmeister Level 1 Level 1 (25 points)
    Currently Being Moderated
    Oct 17, 2011 2:58 PM (in response to donreith)

    I am also using Fusion 4.0.2. I installed that prior to OS X 10.7.2. For a week I was living with 3-4 kernel panics a day. When I installed 10.7.2 the kernel panics went away. But now the issue with Dock using up 100% of CPU has cropped up (never had this before). I saw some posts which said deleting com.apple.dock.plist from \library\preferences solved the problem. I tried doing this (pain in the neck to rebuild dock). And it seemed to solve the problem temporarily. But now it's coming back with  a vengeance.

     

    This Parallels KB post http://kb.parallels.com/en/111541 indicates that parallels had a similar issue back in OS X 10.6.8. Apparently Dock didn't like windows icons showing in Dock.

     

    Right now I'm going to start researching if it's just Dock not liking strange icons. I just ran a GoToMeeting session and the dock issue popped up right after that. I also had an icon for SQL Server 2008 in my dock when the issue popped up.

     

    Anyway I am going to try seeing what happens if I'm judicious about what icons I keep in dock. But I did want to join this thread. If anybody else wants to pursue this line that would be great. 

  • donreith Level 1 Level 1 (20 points)
    Currently Being Moderated
    Oct 17, 2011 7:30 PM (in response to cmeister)

    I don't have anything definitive, but disabling Spotlight (sudo mdutil -i off -a from Terminal) seems to help with me.  Also suggest running Disk Utility to check for issues. 

  • donreith Level 1 Level 1 (20 points)
    Currently Being Moderated
    Oct 18, 2011 4:35 AM (in response to donreith)

    For me it appears it was the combination of Spotlight and some disk issues. Booted into single user mode & ran fsck. That cleared up several errors on my disk. I had disabled Spotlight while troubleshooting this problem so  I turned it back on then forced a rebuild of indexes ("sudo mdutil -E -a" from Terminal ). Left the Macbook on overight with both Mail and Fusion running. No sign of issues with Dock.

  • GuyHelmer Calculating status...
    Currently Being Moderated
    Oct 18, 2011 12:46 PM (in response to CoolDixon)

    Dock is using 200-300% CPU on my MBP with 10.7.2 and VMware Fusion 4.0.2.  The problem just appeared this afternoon and is driving me crazy.  Have tried disabling Spotlight to no avail.

  • GuyHelmer Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 18, 2011 1:18 PM (in response to GuyHelmer)

    Reply to self: Stopped VMware fusion, killed Dock, and now Dock has restarted and is happily running with very low CPU.

  • donreith Level 1 Level 1 (20 points)
    Currently Being Moderated
    Oct 18, 2011 7:12 PM (in response to GuyHelmer)

    sorry for others experiencing issue.  for me, i don't think it was Spotlight itself, just that Spotlight was doing sufficient disk activity to run into the corruption on my disk.  I've been running a solid day now using apps as normal without issue.

     

    if you are still having this problem id suggest doing what I did, which was to try turn stuff off until you identify the culprit. I know that *****. this distraction was a 8 hr time investment for me...

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