My MacBook pro with Mountrain Lion keeps freezing randomly

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My MacBook pro with Mountrain Lion keeps freezing randomly

Hi,

After I updated my MacBook Pro to Mountain Lion, it keep freezing randomly. This happens on normal usage, where the Mac isn't overloaded or has alot of apps running. When it freezes, I can still move my mouse and I can still hear the music from Spotify in the background, but I can't click anything or use any keyboard shortcuts.

I've found this in my crash logs:

Aug 2 20:56:59 nmac kernel[0]: stampWait: Overflowed checking for stamp 0x19ab23f on MAIN ring: called from

Aug 2 20:56:59 nmac kernel[0]: timestamp = 0x19ab23e

Aug 2 20:56:59 nmac kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

Aug 2 20:56:59 nmac kernel[0]: ring head = 0xbea03718, wrap count = 1525

Aug 2 20:56:59 nmac kernel[0]: ring tail = 0x00004048

Aug 2 20:56:59 nmac kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

Aug 2 20:56:59 nmac kernel[0]: timestamps = 0x19ab23e

Aug 2 20:56:59 nmac kernel[0]: Semaphore register values:

Aug 2 20:56:59 nmac kernel[0]: VRSYNC: (0x12044) = 0x19ab23e

Aug 2 20:56:59 nmac kernel[0]: BRSYNC: (0x22040) = 0x0

Aug 2 20:56:59 nmac kernel[0]: RVSYNC: (0x 2040) = 0x0

Aug 2 20:56:59 nmac kernel[0]: BVSYNC: (0x22044) = 0x0

Aug 2 20:56:59 nmac kernel[0]: RBSYNC: (0x 2044) = 0x0

Aug 2 20:56:59 nmac kernel[0]: VBSYNC: (0x12040) = 0x0

Aug 2 20:56:59 nmac kernel[0]: trying to clear semaphore wait on MAIN ring

Aug 2 20:56:59 nmac kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

Aug 2 20:57:03 nmac.home WindowServer[71]: CGXDisableUpdate: UI updates were forcibly disabled by application "Pages" for over 1.00 seconds. Server has re-enabled them.

Aug 2 20:57:03 nmac kernel[0]: stampWait: Overflowed checking for stamp 0x19ab25f on MAIN ring: called from

Aug 2 20:57:03 nmac kernel[0]: stampWait: Overflowed checking for stamp 0x19ab257 on MAIN ring: called from

Aug 2 20:57:03 nmac kernel[0]: timestamp = 0x19ab254

Aug 2 20:57:03 --- last message repeated 1 time ---

Aug 2 20:57:03 nmac kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

Aug 2 20:57:03 --- last message repeated 1 time ---

Aug 2 20:57:03 nmac kernel[0]: ring head = 0xbea03d98, wrap count = 1525

Aug 2 20:57:03 nmac kernel[0]: ring tail = 0x00005148

Aug 2 20:57:03 nmac kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

Aug 2 20:57:03 nmac kernel[0]: timestamps = 0x19ab254

Aug 2 20:57:03 nmac kernel[0]: Semaphore register values:

Aug 2 20:57:03 nmac kernel[0]: VRSYNC: (0x12044) = 0x19ab254

Aug 2 20:57:03 nmac kernel[0]: BRSYNC: (0x22040) = 0x1

Aug 2 20:57:03 nmac kernel[0]: RVSYNC: (0x 2040) = 0x0

Aug 2 20:57:03 nmac kernel[0]: BVSYNC: (0x22044) = 0x0

Aug 2 20:57:03 nmac kernel[0]: RBSYNC: (0x 2044) = 0x0

Aug 2 20:57:03 nmac kernel[0]: VBSYNC: (0x12040) = 0x0

Aug 2 20:57:03 nmac kernel[0]: trying to clear semaphore wait on MAIN ring

Aug 2 20:57:03 nmac kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

Aug 2 20:57:03 nmac kernel[0]: ring head = 0xbea03f48, wrap count = 1525

Aug 2 20:57:03 nmac kernel[0]: ring tail = 0x000051d0

Aug 2 20:57:03 nmac kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

Aug 2 20:57:03 nmac kernel[0]: timestamps = 0x19ab259

Aug 2 20:57:03 nmac kernel[0]: Semaphore register values:

Aug 2 20:57:03 nmac kernel[0]: VRSYNC: (0x12044) = 0x19ab259

Aug 2 20:57:03 nmac kernel[0]: BRSYNC: (0x22040) = 0x1

Aug 2 20:57:03 nmac kernel[0]: RVSYNC: (0x 2040) = 0x0

Aug 2 20:57:03 nmac kernel[0]: BVSYNC: (0x22044) = 0x0

Aug 2 20:57:03 nmac kernel[0]: RBSYNC: (0x 2044) = 0x0

Aug 2 20:57:03 nmac kernel[0]: VBSYNC: (0x12040) = 0x0

Aug 2 20:57:03 nmac kernel[0]: trying to clear semaphore wait on MAIN ring

Aug 2 20:57:03 nmac kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

Aug 2 20:57:03 nmac.home WindowServer[71]: reenable_update_for_connection: UI updates were finally reenabled by application "Pages" after 5.01 seconds (server forcibly re-enabled them after 5.01 seconds)

Aug 2 20:57:09 nmac kernel[0]: stampWait: Overflowed checking for stamp 0x19ab25c on MAIN ring: called from

Aug 2 20:57:09 nmac kernel[0]: timestamp = 0x19ab25b

Aug 2 20:57:09 nmac kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

Aug 2 20:57:09 nmac kernel[0]: ring head = 0xbea03fd0, wrap count = 1525

Aug 2 20:57:09 nmac kernel[0]: ring tail = 0x00005478

Aug 2 20:57:09 nmac kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

Aug 2 20:57:09 nmac kernel[0]: timestamps = 0x19ab25b

Aug 2 20:57:09 nmac kernel[0]: Semaphore register values:

Aug 2 20:57:09 nmac kernel[0]: VRSYNC: (0x12044) = 0x19ab25b

Aug 2 20:57:09 nmac kernel[0]: BRSYNC: (0x22040) = 0x1

Aug 2 20:57:09 nmac kernel[0]: RVSYNC: (0x 2040) = 0x0

Aug 2 20:57:09 nmac kernel[0]: BVSYNC: (0x22044) = 0x0

Aug 2 20:57:09 nmac kernel[0]: RBSYNC: (0x 2044) = 0x0

Aug 2 20:57:09 nmac kernel[0]: VBSYNC: (0x12040) = 0x0

Aug 2 20:57:09 nmac kernel[0]: trying to clear semaphore wait on MAIN ring

Aug 2 20:57:09 nmac kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

Do someone have a soulution?

MacBook Pro (13-inch Late 2011), Mac OS X (10.6.8)

Posted on Aug 2, 2012 12:24 PM

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Answer 1

Best reply

Cattus Thraex

Level 4

1,718 points

Aug 2, 2012 12:30 PM in response to RoboForm

Uncheck all apps starting up at log-in, log out and relog in. Problem might be solved.

Another simple solution is to create a new user, log out and log into that new user and see what happens.

In both cases, things may turn OK.

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Answer 2

RoboForm Author

Level 1

0 points

Aug 2, 2012 12:32 PM in response to Cattus Thraex

Ok, I'll try that. Thanks!

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Answer 3

Aug 2, 2012 12:34 PM in response to RoboForm

Come back if any of these simple solution solves your issue.

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Answer 4

Aug 3, 2012 6:03 AM in response to RoboForm

I have the same occuring on my Retina MacBook Pro.

Only happens when I'm using an external screen (connected via thunderbolt to HDMI cable).

Only happened since upgrading to 10.8

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Answer 5

Aug 17, 2012 2:03 AM in response to RoboForm

Hey guys,

I`m getting this EXACTLY SAME PROBLEM!

Random freezing! MacBook Pro 13" - Early 2011 - i5 8GB RAM

I`m running Montain Lion as well!

HOW TO STOP THIS?

Have to turn-off the computer by the "hard-button" for it to start working again and be waiting for the next FREEZE / CRASH?

What to do Apple, please?

Thanks in advance!

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Answer 6

etresoft

Level 8

46,128 points

Aug 17, 2012 3:19 AM in response to Rodrigo Costa

Rodrigo Costa wrote:

HOW TO STOP THIS?

You can start by asking your own question in your own thread instead of hijacking every Mountain Lion question you come across.

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Answer 7

Aug 17, 2012 4:10 AM in response to etresoft

Hey @etresoft,

I`m really sorry if I did looks like a "hijacking" because it for sure wasn`t my intention at all.

I`ve just asked at the Mountain Lion forums because also looks like that there are much more than one unique topic telling about the same subject and so I did so.

PS: I`ve just started to use the Apple forums as well and so I do not know even how to create a thread here right now.

Have a great wkd,

Cheers,

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Answer 8

Aug 17, 2012 4:27 AM in response to Jason.Smith

Some more detail (although I don't know if anyone is interested)

This occurs more frequently when I'm using an external display - 6+ freezes a day, mostly VMware fusion as I run that full screen on the external monitor.

When I'm just using the internal screen, I get 3 or less occurances, mostly on Apple Mail.

Always the same experience, app freezes, then responds several seconds later.

Window server reenables after n seconds.

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Answer 9

etresoft

Level 8

46,128 points

Aug 17, 2012 6:23 AM in response to Rodrigo Costa

Well, after the third one I got a little annoyed 🙂

At the top, right hand side of the window, under "Actions" there is a "Start a discussion" link.

Describe your problem and the software you have installed. Feel free to run the little diagnostic program I wrote named "EtreCheck". It will list all of the most important details. Download EtreCheck from http://www.etresoft.com/download/EtreCheck.zip, run it, and paste the results in your new thread.

As you have been powering down your machine, you have a a corrupt hard drive by name. The first step is to reboot and hold down the option key to run your Recovery volume. Run Disk Utility and repair your startup disk. As long as you're there, repair permissions too. That is unlikely to help the freezing, but it will repair any damage you may have done in the meantime by powering off your machine instead of shutting down.

Disclaimer: Although EtreCheck is free, there are other links on my site that could give me some form of compensation, financial or otherwise.

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Answer 10

Aug 17, 2012 10:11 AM in response to etresoft

@etresoft,

You have no idea how I appreciate your complete help (at least trying to)! 🙂

I`ll do the "last steps" as you`ve mentioned above for sure!

PS: BTW am tired of it all...really. :S

I`ve bookmarked your website as well because I liked what I see there to buy.

Best Regards,

Have a great weekend.

Rodrigo.

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Answer 11

Aug 25, 2012 10:32 AM in response to RoboForm

Go to Applications and open Disk Image. Click on the indented disk drive at the top left hand side, should be called something like "**** 's iMac". Go to the bottom right hand side and select "Verify Disk". Follow the prompts.

It had me restart the computer while holding down R-Command and then reopen Disk Image and select "Repair Disk" seemed to speed everything up and stop the crashes.

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Answer 12

RoboForm Author

Level 1

0 points

Aug 25, 2012 12:02 PM in response to Munckinpie

I've tried that. Not a solution

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Answer 13

RoboForm Author

Level 1

0 points

Aug 25, 2012 12:02 PM in response to RoboForm

I think the Dock is causing it after further review.

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Answer 14

Feb 21, 2013 1:53 PM in response to RoboForm

https://discussions.apple.com/thread/4194186?answerId=21306602022#21306602022

I just did a bit more testing. On quitting FCP X (recreating the hang), if any graphic element is moved (i.e. causes a redraw), it will hang. It always comes back to life after < 10 sec, fortunately. For instance, quitting to the desktop, and moving the arrow cursor will be fine. But, try dragging an icon and it will hang - provided you do it within 10 sec or so of quitting FCP X. There's no doubt some cleaning up that's done when FCP quits that will hang if any graphic element needs redrawing.

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Answer 15

RoboForm Author

Level 1

0 points

Feb 21, 2013 2:53 PM in response to RoboForm

The problem solved itself, though It think Chrome of being the "bad boy" in this case

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