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macOS Sierra freeze on iMac late 2009 using Safari

Hey guys,

Since the installation of macOS Sierra on my iMac 27 inch late 2009, I'm experiencing freezes of the computer with the following symptoms:

- the freeze occurs when I scroll a webpage in Safari.

- The mouse cursor still moves but I can't click and manipulate the system ; the keyboard doesn't work, as well.

- A force reboot is mandatory to recover.

- I can establish a ssh connection from my MacBook to the iMac, suggesting that Darwin is still running well.

- The log indicates "userspace_watchdog_timeout.spin report for WindowServer version", suggesting that the problem is related to a crash of the WindowServer.

Somebody here with the same machine has the same problem?

Thanks!

VIN,iMac (27-inch Late 2009), macOS Sierra (10.12)

Posted on Sep 28, 2016 11:13 AM

Best reply

riadfromhabsheim Author

Level 1

91 points

Posted on Feb 3, 2017 2:50 AM

Hey guys,

I have a good news. I asked through my bug report when this problem is supposed to be fixed.

Bug report team told me that the bug is still under investigation BUT they say also that I should test this issue on macOS 10.12.5.

Hopefully, a fix will be proposed in the coming macOS 10.12.5 update. 🙂

View in context

473 replies

Will L.

Level 1

80 points

Mar 31, 2017 2:44 PM in response to ddminter

OT: @ddminter - I have basically the same machine and setup and totally agree with you. I've used it 40-60 hours/week for 7+ years and see no reason to get anything new.... :-)

Apr 4, 2017 10:53 AM in response to riadfromhabsheim

Thanks mate! Tried your solution and it eat at least 85% of cpu and not 100% as previous while scrolling fb in safari!

ddminter

Level 1

68 points

Apr 5, 2017 2:17 PM in response to already_here

I am a week or so with 10.12.4, and zero problems, and zero crashes of Safari. This Sierra update did the trick for my late 2009 Imac.

Apr 10, 2017 4:02 PM in response to riadfromhabsheim

Hate to say so, but I'm on 10.12.4 and I still get the freeze. Running the latest MBP w/TouchBar. Guess I'm going back to Chrome.

SMLHOKIE

Level 1

8 points

May 22, 2017 12:25 PM in response to riadfromhabsheim

I am having the same problem on a 2105 MBAir and I am currently on macOS Sierra 10.12.5. I have not detected a pattern.

SMLHOKIE

Level 1

8 points

May 22, 2017 12:33 PM in response to SMLHOKIE

Upon reflection, I think it occurs more often when going to youtube

KL643

Level 1

4 points

Jun 6, 2017 10:48 AM in response to riadfromhabsheim

And, did 10.12.5 the trick for you? (Still on Opera for the time being.)

Jun 8, 2017 3:28 AM in response to KL643

Been on 10.12.5 for some time now with no more freezes. Seems to have been solved.

macOS Sierra freeze on iMac late 2009 using Safari