Klajmax

Q: Macbook Pro keeps freezing

My MBP Pro R early 2015 keeps freezing occasionally. Sometimes it happens few times a day, sometimes zero. When it happens, I can't move the pointer or close the app, the magic trackpad can still click, though. After a short while the clicking becomes impossible and the only thing I can do is reboot. One time when this freeze happened itunes still kept playing in the background, which was kind of strange. I'm pretty sure Safari is the reason of those freezes. TIA for your time and help.

MacBook Pro with Retina display, OS X El Capitan (10.11.4), early 2015

Posted on Apr 13, 2016 2:36 AM

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Q: Macbook Pro keeps freezing

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  • by Klajmax,

    Klajmax Klajmax Apr 18, 2016 5:19 AM in response to Klajmax
    Level 1 (23 points)
    Notebooks
    Apr 18, 2016 5:19 AM in response to Klajmax

    Also I got this problem that when I use FCP (and probably other apps, but im not sure about that) and the computer does some heavy tasks, the wifi connection drops and is impossible to turn on. When this happens I have to deactivate wifi from system preferences, then delete it and restart computer.

  • by Linc Davis,Helpful

    Linc Davis Linc Davis Apr 19, 2016 9:25 AM in response to Klajmax
    Level 10 (207,978 points)
    Applications
    Apr 19, 2016 9:25 AM in response to Klajmax

    A

    The problem may be caused by a hardware fault. The machine should be tested promptly before the one-year warranty expires.

    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.

    B

    Unlicensed or cracked commercial software, or any software downloaded from a torrent, can't be expected to work reliably.

    C

    You installed a Safari extension ("FastestTube") intended to circumvent restrictions on downloading YouTube content.

    Everything on YouTube is copyrighted. The copyright holders decide whether to allow their content to be downloaded as well as streamed. Those who choose to allow downloading can place a "Download" link on the content page. It's safe to use that link. If the link isn't there, saving the content as a file for re-use is copyright infringement, as well as a breach of the YouTube user agreement.

    You may not care about that. But installing any software that helps you to infringe copyright, or to do anything else illegal, is one of the most likely ways to become infected with malware. No YouTube downloader can be considered safe to use. Some may not be malicious, but you have no way of knowing which.

    D

    The symbol cache is very large. It stores data used in logs and crash reports, and it may have grown because it's corrupt. The cache is created automatically, and if deleted, it should be recreated when you restart the computer. Initially, at least, it will be a lot smaller.

    I've seen one unverified report that a system became unbootable when the cache was deleted. That would have been due to a corrupt installation of OS X, but you should be prepared to reinstall if necessary. There is no reason to panic as long as you have good backups.

    Back up all data before proceeding.

    Please triple-click anywhere in the line below on this page to select it:

    /System/Library/Caches/com.apple.coresymbolicationd

    Right-click or control-click the highlighted line and select

              Services Reveal in Finder (or just Reveal)

    from the contextual menu.* A folder should open with an item named "com.apple.coresymbolicationd" selected. Move the selected item to the Trash. You may be prompted for your administrator login password. Restart the computer and empty the Trash.

    *If you don't see the contextual menu item, select the line below and copy it to the Clipboard by pressing the key combination command-C:

    /System/Library/Caches

    In the Finder, select

              Go Go to Folder...

    from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return.

    A folder named "Caches" should open. Inside it is a subfolder named "com.apple.coresymbolicationd". Move that subfolder to the Trash, restart, and empty.

  • by Klajmax,

    Klajmax Klajmax Apr 19, 2016 9:25 AM in response to Linc Davis
    Level 1 (23 points)
    Notebooks
    Apr 19, 2016 9:25 AM in response to Linc Davis

    Okay, today I uninstalled FastestTube but still got a freeze in the next 2 hours after doing so. Then I made a new TM backup just to be sure and deleted the folder you said. The copmuter rebooted with no problems - then I emptied the thrash. Will see if this helps. In the recent days I had no problems with freezing. I remember that today, when the freeze happened, I was using Safari and the opened tabs were - this site, facebook and shstore.eu (internet shop). When the previous freezes occured I am 99% positive that facebook was opened as well. I don't know if this helps but at least it's something.

  • by Linc Davis,

    Linc Davis Linc Davis Apr 19, 2016 9:30 AM in response to Klajmax
    Level 10 (207,978 points)
    Applications
    Apr 19, 2016 9:30 AM in response to Klajmax

    I don't expect Steps B, C, or D to have an effect on the freezing behavior. They're just incidental findings from the test results, not related to the original question.

  • by Klajmax,

    Klajmax Klajmax Apr 19, 2016 2:46 PM in response to Linc Davis
    Level 1 (23 points)
    Notebooks
    Apr 19, 2016 2:46 PM in response to Linc Davis

    Alright, but this thing started to happen on the newest el capitan update (10.11.4). Before I had literally no problems like that nor any similiar. Do you think fresh install could fix it?

  • by Linc Davis,

    Linc Davis Linc Davis Apr 19, 2016 2:52 PM in response to Klajmax
    Level 10 (207,978 points)
    Applications
    Apr 19, 2016 2:52 PM in response to Klajmax

    No, but don't let that stop you if you want to try it.

  • by inconnul,

    inconnul inconnul Sep 11, 2016 12:35 AM in response to Linc Davis
    Level 1 (9 points)
    Applications
    Sep 11, 2016 12:35 AM in response to Linc Davis

    Hi! First of all thank you so much for your help here...

    I am experiencing the exact same issue with the 'distnoted' activity taking sometimes more than 300% of my CPU. It took me a while to find the culprit but since I was able to kill this process (distnoted) when my macbook pro early 2015 started to became unresponsive and noticed that it solved the issue I knew what it was.

     

    How can we make Apple aware of it and make sure they will provide a fix for that bug? Or should we just wait for the next OS to come out to solve the problem?

     

    Thank you.

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