OS X 10.11.4 freezing and/or crashing while using Safari

Hi,

I already had this bug twice since 10.11.4 upgrade on an MBA 2015. It happened when using Safari. I was able to log in distantly with ssh to the frozen machine, so the kernel wasn't stuck, only the software layer handling the screen. Surprisingly, when distantly issuing "sudo reboot" through ssh, the system halted but did not reboot (I saw that in the logs afterwards). Furthermore, the screen remained exactly in the same state as when the bug occurred and did not switch off. So I had to force off by holding the power button.

After that, I looked for the last messages in the log before the freeze. The two freezes produced messages linked to the Webkit, like :

03/05/2016 18:02:45,687 com.apple.WebKit.WebContent[47528]: <<<< VT-DS >>>> VTDecompressionSessionWaitForAsynchronousFrames: WARNING: waited 80 seconds for video decoder to complete asynchronous frames; maybe it is stuck or has a buggy path that does not complete a frame?

Hope Apple will quickly fix this annoying bug. Meanwhile, I'm switching to Chrome.

Best,

Jacques

I have the same problem in my Early 2015 macbook pro,

Most of the time, it happened after I just clicked the YouTube video,

At first, the sound continued, and the mouse can still move,

but after a while, the whole system freeze, I cannot click on the touchboard either.

In my case, it happens almost once a day,

after I remove Safari's caches, it will not happen for about 3 days,

but it goes back then.

I also have had the "freeze" on 10.11.4 for the past 6 weeks or so. It is not isolated to Safari. It has occurred on my MBP 2011 running Firefox, Chrome and the latest Safari Technology Preview.

Additionally I have had it freeze opening "Time Machine" so its not just a browser problem. Sounds like its deep in the OS.

After the freeze its a carp shoot to get back running. Sometime multiple PRAM resets, Safe Boots, and Recovery Boots are required before getting fully booted.

If this had been in IOS, Apple would have gotten a fix out much sooner. I have sent multiple sys diagnostic reports with my bug report only to hear that it is a duplicate of a non existent Bug Id number.

Rebooting 3/4 times a day really hurts productivity. Come Apple get a fix out.

A week or so ago somebody reported that updating Flash manually works to fix the Safari problems with freezing, and I tried it, and, yes, that took care of it. No problems since then.

This is getting ridiculous! It's been 3-4 weeks now that I can't use my desktop.

I have try everything and it's good for a while and crashes again. I have been repeating this for weeks now and today it crashes again.

I can restart it. I can even reboot it. Apple has to fixed it. Apple can't sell a machine that do not function!

I am way too upset!!!

Does anyone know how I can go back to 10.11.3 that was stable for me?

New Beta build 15F31a, nothing has changed. Still freezing/crashing. I have sent regular bug reports, I feel like I am/we are not being heard.

SAME ISSUE HERE. MBPr late 2015.

Everything stops working. Please apple solve the problem !!

I'm very happy to say that I'm glad this is not a hardware related issue. 🙂

Unfortunately, I couldn't find this article on the web two weeks ago when I had decided to bring my Early 2015 rMBP to Apple for a repair because I couldn't stand how many times it completely froze and become totally unresponsive. So, basically, they couldn't find any hardware related issue with it (obviously) and I've got it back.

However, the machine not only freezes while using Safari. but during any video playback in any app. All out of a sudden. My machine became unresponsive even when I was editing some video footage in Logic Pro X. So yeah, it's not only Safari.

But, I've managed to get some of the logs of the crash, and apparently it's the WindowServer the one that crashed for me. It looks something like this.

07/05/2016 02:41:52.000 kernel[0]: process WindowServer[151] caught causing excessive wakeups. EXC_RESOURCE supressed due to audio playback

All you guys --

Please follow Robin's advice before you give up:

A week or so ago somebody reported that updating Flash manually works to fix the Safari

problems with freezing, and I tried it, and, yes, that took care of it. No problems since then.

You apparently don't understand. Many people, including me, have this problem and have NO Flash installed.

I had enough after 4 weeks of crashing, freezing, sudden shut down and reboot by itself. It started with one app and then, another and another and then even something when you just simply log in. It can't even reboot now, regardless weather it's from command R or option command R. It would not reinstall the os system again. I have done numerous disk utility first aid and there's nothing wrong with my hardware. It will reboot and cash again. Every time I call Apple, they want to assume it's my hardware. I insist it's the problem with 10.11.4 and it's frustrating they will not acknowledge it. I told them to look at the amount of discussion going on with the upgrade and we all encounter the same problem after the upgrade but he insist every one of us individual has different problem! Am I delusional! Does anyone call them? I will continue calling till they acknowledge. I am very close to erasing my hardisk to reinstall everything again. That is what they want me to do! But will it solve the problem?

Just ignore high lvl users. They will never admit an Apple product or Apple itself can have or cause problems.

50 people already said flash is not the problem, they don't answer.

1 people do not have problems after flash update, that's the solution.

....

Just to feed this Flash sub-discussion, and maybe to start an informal poll, I never had Flash installed on my system.

Well, when did calling apple support was ever an option? They only tell you to reset the pram, smc and worst case scenario, reinstall os x. Doing that won't solve your problem because it's the software which is faulty. So stop thinking it's your machine people 😝