That's what the tech said , I would hope it's very rare . I was told by the Apple Care tech's over the phone that quite a few people are experiencing this issue , they're aware and engineers are working on an update . Next time there is a new OS , I will wait a month before I install so the bugs are fixed .
My hard drive is brand new and was installed by the Apple Store just 2 months ago, after the previous one died.
So I doubt this one is dying now. Also, when it freezes, there is no hard drive noise - it is not repeatedly trying to access the same part of the disk, as when there is a hard drive failure, and no unusual noise.
This is software related, I'm sure.
It's not quite urgent enough for me to go through the hassle of taking the machine to the Apple Store (since mine in an iMac), since it's only crashing 3-4 times a week, but I sure hope Apple release an update soon because this *****.
It sure does !! Mine was crashing about every 90 minutes , it was progressively getting worse , as of last night , it would last under 10 minutes before it froze . It does sound similar to mine , I had no noise either . One thing I was noticing was that when I had the system freeze , it would happen when my Tweetdeck App was updating and showing the update window on top of the Chrome browser . Could have been completely coincidental . I could still move the cursor but I couldn't do anything at all .
You checked third-party software, ok. Try this then (just did this in another thread):
Often there´s software incompatibility involved, You can try this in Terminal (Application>Utilities):
Copy and paste this line (don´t type) into the command line and press enter:
kextstat | grep -v com.apple
Copy the resulting list and paste it in this thread.
This is most assuredly another Nvidia problem. My Macbook had a very similiar problem back in Lion and was only fixed after a patch after 10.7.2. I'm trying now to make the notebook ONLY use the build in graphics and not the Nvidia but this is an awful solution as I cannot use my exterinal monitor.
Error showing every crash in the logs:
8/3/12 1:47:34.000 PM kernel: NVDA(OpenGL): Channel exception! exception type = 0xd = GR: SW Notify Error
Again, I'm posting my console output. This is the part that keeps repeating when freezing occurs:
03.08.2012. 11:56:53.000 AM kernel: **** Debug info for *possible* hang in MAIN graphics engine ****
03.08.2012. 11:56:53.000 AM kernel: ring head = 0xb5c0d9fc, wrap count = 1454
03.08.2012. 11:56:53.000 AM kernel: ring tail = 0x00001cd0
03.08.2012. 11:56:53.000 AM kernel: ring control = 0x0000f001 enabled, auto report disabled, not waiting, semaphore not waiting, length = 0x010 4KB pages
03.08.2012. 11:56:53.000 AM kernel: timestamps = 0x1208fa
03.08.2012. 11:56:53.000 AM kernel: Semaphore register values:
03.08.2012. 11:56:53.000 AM kernel: VRSYNC: (0x12044) = 0x1208fa
03.08.2012. 11:56:53.000 AM kernel: BRSYNC: (0x22040) = 0x1
03.08.2012. 11:56:53.000 AM kernel: RVSYNC: (0x 2040) = 0x0
03.08.2012. 11:56:53.000 AM kernel: BVSYNC: (0x22044) = 0x0
03.08.2012. 11:56:53.000 AM kernel: RBSYNC: (0x 2044) = 0x0
03.08.2012. 11:56:53.000 AM kernel: VBSYNC: (0x12040) = 0x0
03.08.2012. 11:56:53.000 AM kernel: stampWait: Overflowed checking for stamp 0x12099c on MAIN ring: called from waiting for blt buffer (3D blt)
03.08.2012. 11:56:53.000 AM kernel: timestamp = 0x1208fa
I'm using MacBook Pro (Late 2011) with Intel HD Graphics 3000.
I've done clean installation of ML not upgrade.
After looking into my freezing and corruption problems I think it maybe the NVIDIA 8600M GT graphics card in my mid-2007 MBP as discussed in http://support.apple.com/kb/TS2377 I've seen the corruption and flickering during the grey boot screen as well which makes me think it isn't related to the upgrade to Mountain Lion. I don't know if the free repair still applies though ... :/
I think there are different issues here.
The 'symptoms' are: System freezers, switching between programmes not possible, keyboard doesn't respond, touch pad allows the cursor to move but nothing can be clicked on. If video or audio is playing, it continues to play.
No strange hard drive noises, no blurred graphics or streaking of graphics. If you're having those issues it doesn't sound like what we're talking about here.
I don't believe it's 3rd party software because I'm not running any when it happens, only Apple. (Safari, Mail, iTunes, Pages etc).