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Level 1

19 points

Mountain Lion Screen Freeze

Hello,

the cursor freezes sometimes, but even when it moves I cannot make anything happen with it except Shut Down, the track pad is unresponsive, and the screen is frozen, and sometimes there are some problems with graphics:

This is what happens repeatly before the boot time:

8/9/12 6:19:29.000 PM kernel[0]: stampWait: Overflowed checking for stamp 0x9b4cefa on MAIN ring: called from

8/9/12 6:19:29.000 PM kernel[0]: timestamp = 0x9b4cef8

8/9/12 6:19:29.000 PM kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

8/9/12 6:19:29.000 PM kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

8/9/12 6:19:29.000 PM kernel[0]: timestamps = 0x9b4cef8

8/9/12 6:19:29.000 PM kernel[0]: VRSYNC: (0x12044) = 0x9b4cef8

8/9/12 6:19:29.000 PM kernel[0]: BRSYNC: (0x22040) = 0x0

8/9/12 6:19:29.000 PM kernel[0]: BVSYNC: (0x22044) = 0x0

8/9/12 6:19:29.000 PM kernel[0]: RBSYNC: (0x 2044) = 0x0

8/9/12 6:19:29.000 PM kernel[0]: VBSYNC: (0x12040) = 0x0

8/9/12 6:19:29.000 PM kernel[0]: stampWait: Overflowed checking for stamp 0x9b4cf0d on MAIN ring: called from

8/9/12 6:19:29.000 PM kernel[0]: timestamp = 0x9b4cef9

8/9/12 6:19:29.000 PM kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

8/9/12 6:19:29.000 PM kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

8/9/12 6:19:29.000 PM kernel[0]: timestamps = 0x9b4cef9

8/9/12 6:19:29.000 PM kernel[0]: VRSYNC: (0x12044) = 0x9b4cef9

8/9/12 6:19:29.000 PM kernel[0]: BRSYNC: (0x22040) = 0x1

8/9/12 6:19:29.000 PM kernel[0]: BVSYNC: (0x22044) = 0x0

8/9/12 6:19:29.000 PM kernel[0]: RBSYNC: (0x 2044) = 0x0

8/9/12 6:19:29.000 PM kernel[0]: VBSYNC: (0x12040) = 0x0

8/9/12 6:19:34.000 PM kernel[0]: stampWait: Overflowed checking for stamp 0x9b4cf45 on MAIN ring: called from

8/9/12 6:19:34.000 PM kernel[0]: timestamp = 0x9b4cf25

8/9/12 6:19:34.000 PM kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

8/9/12 6:19:34.000 PM kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

8/9/12 6:19:34.000 PM kernel[0]: timestamps = 0x9b4cf25

8/9/12 6:19:34.000 PM kernel[0]: VRSYNC: (0x12044) = 0x9b4cf25

8/9/12 6:19:34.000 PM kernel[0]: BRSYNC: (0x22040) = 0x1

8/9/12 6:19:34.000 PM kernel[0]: BVSYNC: (0x22044) = 0x0

8/9/12 6:19:34.000 PM kernel[0]: RBSYNC: (0x 2044) = 0x0

8/9/12 6:19:34.000 PM kernel[0]: VBSYNC: (0x12040) = 0x0

8/9/12 6:19:34.000 PM kernel[0]: stampWait: Overflowed checking for stamp 0x9b4cf59 on MAIN ring: called from

8/9/12 6:19:34.000 PM kernel[0]: timestamp = 0x9b4cf27

This is what I found just before the boot time:

8/9/12 6:24:20.000 PM kernel[0]: stampWait: Overflowed checking for stamp 0x9b4cfe7 on MAIN ring: called from

8/9/12 6:24:20.000 PM kernel[0]: timestamp = 0x9b4cf9a

8/9/12 6:24:20.000 PM kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

8/9/12 6:24:20.000 PM kernel[0]: ring head = 0x86a077a4, wrap count = 1077

8/9/12 6:24:20.000 PM kernel[0]: ring tail = 0x0000b910

8/9/12 6:24:20.000 PM kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

8/9/12 6:24:20.000 PM kernel[0]: timestamps = 0x9b4cf9a

8/9/12 6:24:20.000 PM kernel[0]: Semaphore register values:

8/9/12 6:24:20.000 PM kernel[0]: VRSYNC: (0x12044) = 0x9b4cf9a

8/9/12 6:24:20.000 PM kernel[0]: BRSYNC: (0x22040) = 0x1

8/9/12 6:24:20.000 PM kernel[0]: RVSYNC: (0x 2040) = 0x0

8/9/12 6:24:20.000 PM kernel[0]: BVSYNC: (0x22044) = 0x0

8/9/12 6:24:20.000 PM kernel[0]: RBSYNC: (0x 2044) = 0x0

8/9/12 6:24:20.000 PM kernel[0]: VBSYNC: (0x12040) = 0x0

8/9/12 6:24:20.000 PM kernel[0]: trying to clear semaphore wait on MAIN ring

8/9/12 6:24:20.000 PM kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

8/9/12 6:24:24.997 PM coreservicesd[31]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=207

8/9/12 6:24:24.997 PM coreservicesd[31]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=214

8/9/12 6:24:24.000 PM kernel[0]: stampWait: Overflowed checking for stamp 0x9b4cfdf on MAIN ring: called from

8/9/12 6:24:24.000 PM kernel[0]: timestamp = 0x9b4cf9c

8/9/12 6:24:24.000 PM kernel[0]: **** Debug info for *possible* hang in MAIN graphics engine ****

8/9/12 6:24:24.000 PM kernel[0]: ring head = 0x86a07864, wrap count = 1077

8/9/12 6:24:24.000 PM kernel[0]: ring tail = 0x0000ba48

8/9/12 6:24:24.000 PM kernel[0]: ring control = 0x0000f401 enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

8/9/12 6:24:24.000 PM kernel[0]: timestamps = 0x9b4cf9c

8/9/12 6:24:24.000 PM kernel[0]: Semaphore register values:

8/9/12 6:24:24.000 PM kernel[0]: VRSYNC: (0x12044) = 0x9b4cf9c

8/9/12 6:24:24.000 PM kernel[0]: BRSYNC: (0x22040) = 0x1

8/9/12 6:24:24.000 PM kernel[0]: RVSYNC: (0x 2040) = 0x0

8/9/12 6:24:24.000 PM kernel[0]: BVSYNC: (0x22044) = 0x0

8/9/12 6:24:24.000 PM kernel[0]: RBSYNC: (0x 2044) = 0x0

8/9/12 6:24:24.000 PM kernel[0]: VBSYNC: (0x12040) = 0x0

8/9/12 6:24:24.000 PM kernel[0]: trying to clear semaphore wait on MAIN ring

8/9/12 6:24:24.000 PM kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

8/9/12 6:24:52.000 PM bootlog[0]: BOOT_TIME 1344554692 0

Thank you in adavnace

Sebastian

MacBook Air, OS X Mountain Lion

Posted on Aug 9, 2012 5:20 PM

185 replies

May 14, 2013 10:56 AM in response to sdaza

First time "freeze" like this happened to me today, I'm on a MBA 2012, no FCPX. And it wasn't really a total freeze, it was running and responding to e.g. Exposé but only at about 1 frame/3 minutes. And it was running hot, no fan kicking in. So a shutdown seemed the sensible thing to do.

I just can't believe how buggy ML has been all the way through. I wish I had time to roll everything back to SL, that OS was rock stable!

Console reports repeatedly:

2013-05-14 15:40:11,000 kernel[0]: BLT ring is NOT waiting on an event

2013-05-14 15:40:11,000 kernel[0]: GPU hang:

2013-05-14 15:40:11,000 kernel[0]: Trying restart GPU ...

2013-05-14 15:40:11,000 kernel[0]: MAIN ring is NOT waiting on an event

2013-05-14 15:40:11,983 com.apple.launchd[1]: (com.apple.DumpGPURestart) Throttling respawn: Will start in 1 seconds

Jul 2, 2013 8:16 PM in response to tbertran

I still get this about once every day or so and it is VERY frustrating to say the least.

Jul 8, 2013 7:48 PM in response to sdaza

Also getting this freeze. Mostly happened when using Safari and having weebly.com opened in a background tab. Since I am closing tabs running weebly.com each time I flip tabs, I haven't had a freeze. Well, one freeze. Maybe twitter.com did it? Haven't had a freeze with Chrome though. But for others here, Chrome has been the culprit. And for others again, FCP-X.

Very annoying.

Jul 8, 2013 8:42 PM in response to Simon Rioux

I've resorted to using ONYX to clean up the whole system. Will check back in a few days to say if it fixed the problem or not. Fingers crossed! Usually Onyx has a good record of fixing obscure problems...

adam1232

Level 1

2 points

Jul 9, 2013 8:00 AM in response to Simon Rioux

That's what I used, and I haven't had a freezing problem since. I'm not positive that Onyx was the solution, but I use Onyx a couple times a year now.

Jul 9, 2013 8:18 PM in response to adam1232

Well, so far so good. Everything that used to freeze my machine has been working flawlessly now.

Seems like the answer to all problems in this thread is called "Onyx".

elkdog

Level 1

9 points

Jul 29, 2013 1:11 PM in response to Simon Rioux

I started getting the screen freeze about 2 weeks ago. Only happens when I'm browsing the web - curser moves, audio continues if something is streaming (weird) -- but otherwise, machine completely unresponsive. Have to do a hard reboot.

After scanning the message boards, I thought maybe it was a video card or logic board problem. Took it into the Apple store and they spent two days putting the machine through stress tests. Conclusion: hardware and data all checked out fine. They reinstalled the OS and did not disturb any of my data. Took it home and the first freeze occurred after about 2 hours.

This is what I have noticed:

This only happens when I'm using a web browser. First I thought it was Safari, but the freeze has happened on Firefox and Chrome as well.
1. The screen freeze has never happened when my browsers are closed. I'm a graphic designer and often have InDesign, Photoshop, DreamWeaver and Illustrator open at the same time, and I have never had the issue until I open a browser.
2. The freeze happens when the only application open is a web browser.
I cleared all my cookies and removed all my extensions on all browsers and I still get the freeze.
I did a clean install of FireFox and Chrome and I still get the freeze.
The machine does get very hot in the upper left corner when the freeze occurs, but the Apple genius I spoke with assured me the temps I'm seeing are well within the accepted range.
Finally, I set up a new account on my Mac this morning to see if the issue replicated itself. I've been streaming video, I've got all three browsers open and that upper left corner has stayed cooler than when I'm in my own user account and I have not had a freeze all day.

I'm convinced my freezing issue is related to my browsing software.

I'm suspicious the issue is confined to my user account and I'm wondering if I should create a new user account for myself. Can I recreate my user account without loosing data, but leaving behind the old user preference files? And will this affect my Time Machine and SuperDuper backups?

Or Should I bite the bullet and wipe my drive clean and do a whole new clean reinstall of everything? (Gulp)

I've noticed that other desktop and Macbook users have been having similar issues since Mountain Lion came out. I've never experienced the hang until 10.8.4.

Jul 29, 2013 1:21 PM in response to elkdog

Do like I did: use ONYX on your machine, and do a thorough clean up of all the system files with it. Erase everything that can be erased with this app, and reset everything that they allow you to. I haven't had a freeze since I put up the solution early July.

You don't have to reset the computer after every system cleanup; just do all your business, and when all the tasks are completed, reboot.

Give it a try!

Aug 6, 2013 10:45 AM in response to seanfromminato-ku

Don't take your frustration out on other users who are trying to help. If my answer doesn't resolve your problem, I'm sorry, I'm just a Level 1 user.

elkdog

Level 1

9 points

Aug 6, 2013 12:12 PM in response to Simon Rioux

Thanks for the tip Simon. ONYX sort of worked! 😁

I noted that it repaired my user permissions for:

"Library/Preferences/com.apple.alf.plist

"System/Library/Frameworks/CoreGraphics.framework,Core Graphics"

"System/Library/Frameworks/CoreGraphics.framework/Resources"

"System/Library/Frameworks/CoreGraphics.framework/Versions/Current"

I'm only using Chrome for web browsing now and I'm still occassionally getting the freeze every day or so, but not the every-15 -minutes like I was getting with Safari.

This problem seems to be restricted to only my iMac. My Powerbook has never had the issue and it's running Mountain Lion and most of the same programs.

Aug 9, 2013 7:50 AM in response to Simon Rioux

Thank you Simon. I tried ONYX before, but didn't do a deep clean. I did so after read your post, and glad I did it.

So far so good for 2 days, it is whole lot better than before. I am not sure the problem is gone, but positive to this solution.

Cheers!

kenorb

Level 1

4 points

Sep 18, 2013 7:11 AM in response to sdaza

The same problem here.

Sep 18 14:55:29 kenorbs-MacBook-Air com.apple.launchd[1] (com.apple.sleepservicesd[3406]): Exited: Killed: 9

Sep 18 14:55:29 kenorbs-MacBook-Air kernel[0]: memorystatus_thread: idle exiting pid 3406 [SleepServicesD]

Sep 18 14:55:38 kenorbs-MacBook-Air com.apple.launchd[1] (com.apple.cfprefsd.xpc.daemon[3407]): Exited: Killed: 9

Sep 18 14:55:38 kenorbs-MacBook-Air kernel[0]: memorystatus_thread: idle exiting pid 3407 [cfprefsd]

Sep 18 14:55:40 kenorbs-MacBook-Air com.apple.launchd[1] (com.apple.sleepservicesd[3408]): Exited: Killed: 9

Sep 18 14:55:40 kenorbs-MacBook-Air kernel[0]: memorystatus_thread: idle exiting pid 3408 [SleepServicesD]

Sep 18 14:55:55 kenorbs-MacBook-Air com.apple.launchd[1] (com.apple.sleepservicesd[3412]): Exited: Killed: 9

Sep 18 14:55:55 kenorbs-MacBook-Air kernel[0]: memorystatus_thread: idle exiting pid 3412 [SleepServicesD]

Sep 18 14:56:11 kenorbs-MacBook-Air kernel[0]: (default pager): [KERNEL]: ps_select_segment - send HI_WAT_ALERT

Sep 18 14:56:11 kenorbs-MacBook-Air kernel[0]: memorystatus_thread: idle exiting pid 3416 [SleepServicesD]

Sep 18 14:56:11 kenorbs-MacBook-Air com.apple.launchd[1] (com.apple.sleepservicesd[3416]): Exited: Killed: 9

Sep 18 14:56:14 kenorbs-MacBook-Air kernel[0]: macx_swapon SUCCESS

Sep 18 14:56:27 kenorbs-MacBook-Air.local WindowServer[222]: CGXDisableUpdate: UI updates were forcibly disabled by application "Finder" for over 1.00 seconds. Server has re-enabled them.

Sep 18 14:56:27 kenorbs-MacBook-Air.local WindowServer[222]: reenable_update_for_connection: UI updates were finally reenabled by application "Finder" after 11.80 seconds (server forcibly re-enabled them after 1.23 seconds)

Sep 18 14:56:39 kenorbs-MacBook-Air kernel[0]: memorystatus_thread: idle exiting pid 3448 [SleepServicesD]

Sep 18 14:56:41 kenorbs-MacBook-Air com.apple.launchd[1] (com.apple.sleepservicesd[3448]): Exited: Killed: 9

(CRASH)

Sep 18 15:02:36 localhost bootlog[0]: BOOT_TIME 1379512956 0

Sep 18 15:02:39 localhost kernel[0]: Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64

Sep 26, 2013 7:01 PM in response to elkdog

I also only get this issue on my iMac. Seems to occur still about once a day or so. Macboook running exactly the same OS has no such problems. I still can't figure what is causing it. Very frustrating that the forced restart does not seem to generate any error report to send to apple.

Oct 29, 2013 10:48 PM in response to seanfromminato-ku

This problem still persists with Mavericks...

Nov 23, 2013 2:22 PM in response to seanfromminato-ku

Yup. This is still an issue. I'm running Mavericks on a 2011 Mac Mini low end. It's annoying but only happens with the a browser window open.

Mountain Lion Screen Freeze