Mdworker (Launchd) using CPU 100%

Discussion in 'OS X Mountain Lion (10.8)' started by srinivasnarne, Sep 20, 2012.

  1. macrumors newbie

    Joined:
    Sep 20, 2012
    #1
    I'm using 10.8.2. I've observed today in the activity monitor that "mdworker" is using 100% of my CPU. When I click the 'inspect' button it showed "launchd" as the parent process for "mdworker". My CPU temperature is in between 70 to 80 celcius. This is going on from the last 3-4 hours. My harddisk has almost 75% free space of the total space(500GB). The spotlight search icon in the menu bar is blank(No dot in it) i.e., spotlight is not indexing. Why is this happening even though when spotlight is not indexing?

    I've not connected or mounted any external drives. I've installed skydrive app a few days ago. I've updated to 10.8.2 last night. And I've also installed the Macbook pro 2012 firmware update released last night for non retina mid 2012 models.
     
  2. macrumors P6

    Weaselboy

    Joined:
    Jan 23, 2005
    #2
    Enter the command below in Terminal and that will reindex Spotlight. You will be prompted for your password.

    Code:
    sudo mdutil -E /
     
  3. macrumors newbie

    Joined:
    Sep 20, 2012
    #3
    I have got the same problem here. Mdworker and Mds take up between 40% and 60% of my CPU resources. Excluding all drives from Spotlight does not make a difference. Neither does reindexing.

    According to some other threads it has some thing to do with:

    Lets hope somebody finds a fix.
     
  4. Guest

    Joined:
    Apr 17, 2005
    Location:
    Currently in Switzerland
    #4
    Facing similar problems here, and also wake-from-sleep issues that had not happened under 10.8.1. Does anyone know where to find the ls file mentioned above?
     
  5. Guest

    Joined:
    Apr 17, 2005
    Location:
    Currently in Switzerland
    #5
    Guys, I may (just may) have found the culprit: I looked for the aforementioned files and found them under Computer>Library (NOT YOUR USER LIBRARY)>Caches.

    In there, there was a folder called "coresymbolicationd" with a red "no entry" sign on it (due perhaps to a permissions issue or a deprecated file) - I deleted all of them.

    Console still shows messages like the above, so I will try to restart/sleep and see if the problem continues.
     
  6. 50548, Sep 21, 2012
    Last edited by a moderator: Sep 21, 2012

    Guest

    Joined:
    Apr 17, 2005
    Location:
    Currently in Switzerland
    #6
    Mods, can you move this thread to the ML section? This is not just about MBP.

    Mod Note: Thread moved. But please report the thread and ask for it to be moved rather than requesting moderation in the thread.
     
  7. macrumors 6502

    gwang73

    Joined:
    Jun 14, 2009
    Location:
    San Francisco Area
    #7
    I'm not sure if this was the culprit, but I've managed to fix my system. I removed the /Library/Caches/com.apple.coresymbolicationd folder. You'll need to CMD-I and add permissions for admin or your username before deleting.

    I didn't have enough patience to see if it fixed it or not, but I re-installed ML by rebooting into recovery mode, CMD-R, and re-installed ML. I no longer get any mdworker errors in system logs. After re-install, the com.apple.coresymbolicationd folder is no longer there.

    Hope this helps.
     
  8. macrumors newbie

    Joined:
    Apr 27, 2010
    #8

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