macOS Sierra freeze on iMac late 2009 using Safari

Hi all,

I have the same problem. Specifics:

- iMac 11,1 (late 2009, Core i5, ATi Radeon HD 4850 512 MB)

- Refitted with an SSD (Sandisk 1TB - too lazy to look up the exact type 😉)

- Total CLEAN vanilla install of Sierra (since 1 day actually!)

- Plugins installed: Silverlite (for Netflix, was actually running in a different tab when it happened) / 1Password

- For the rest, only PixelMator (image edit app - guess unrelated) and DropBox installed - so yes, a VERY vanilla system

And indeed, - Indeed when running Safari, scrolled down in a website, it crashed like advertised. The only thing I couldn't see was the logging as originally described when logging in remotely, but also with me, the WindowServer was down.

Doing tricks like reenabling WindowServer (using launchctl load /System/Library/LaunchDaemons/com.apple.WindowServer.plist) didn't help.

First aid on my drive showed nothing wrong (would have actually surprised me).

Will follow this thread as well!

So the report say there's something wrong with you startup items and with some Adobe startup processes. Have you had a chance to disable?

I have an iMac like yours with the same amount of RAM. Only difference is that I migrated my HD to an SSD running on Firewire 800. My internal HD is now used for Data/Photo backup. The system and Apps are on the SSD.

The only time I experience crashes is when I daisy chain to the SSD something require lots of bandwidth (like a video camera).

Otherwise Sierra has been pretty zippy.

Good luck

I did a fresh install of Sierra on a 2009 iMac 27" after the install I only opened safari and started watching videos and the freezing DID occur.

So I think it has nothing to do with any add-ons or plugins. Since it did it with a clean install this issue is in the OS itself which is pretty sad. I also had to revert to El Capitan since my iMac froze 3-4 times a day.

For me it usually happened when I was watching a video and the video was in a tab with was not open. I really hope apple solves this soon.

It seems like a number f people with SSDs installed are having this issue but it also seems to be occurring with rotational HDs so I am not sure if the SSDs are the culprit. I ything non-stock in Safari and so far so good after about 30 hours.

Yeah i did notice that as well that many people here have ssd installed, i do as well also. But it happened with the original hard drive as well. So i doubt it that the ssd is causing it...

I have been using Chrome for 2 days now and no crashes.

It seems that problem is really the Safari

regards

All,

I'm migrating to G Chrome either. It works better (at least with G Suite apps). No crashes, no "freezes", nor lags so far.

Safari is left for personal pages only, where not that many active context and/or plug-ins required (e.g. G Talk).

This is very strange, that Safari 10 is so slow and resources consuming: I truly love this browser, it's really geeky cool, but it's behaviour is unpredictable and unresponsive with the latest updates...

I hope someone from Apple reads this thread and has enough info now to pass to Dev team.

Thanks

Hi riadfromhabsheim,

I have a 21.5" iMac late 2009, but the same message in the log as the last entry before I hard rebooted.

I tried ssh-ing to the machine and sending a killall -HUP WindowServer. That didn't restart the WindowServer (it did when I tried the same comment when no freeze). A kill -9 did stop the mouse from moving, but didn't help me restart the WindowServer.

Right before the freeze there appear to be a couple of cloudd messages in the syslog:

cloudd[807]: notify name "com.apple.security.view-change.PCS" has been registered 20 times - this may be a leak

cloudd[807]: notify name "com.apple.ProtectedCloudStorage.HaveCredentials" has been registered 20 times - this may be a leak

Then the spindump, not sure if triggered by the kill command or automatically generated:

spindump[407]: Saved userspace_watchdog_timeout.spin report for WindowServer version ??? (???) to /Library/Logs/DiagnosticReports/WindowServer_2016-10-06-192651_iMac-van-xxxxx.u serspace_watchdog_timeout.spin

Note the ???, that's what I see in the logs rather than a real version.

Hello

it looks like I have the same problem wih my iMac late 2013.

It started with Sleep Wake failure and yesterday evening I had 2 freezes, usb mouse and keyborad not responding, the BT trackad responded for maybe one minute or two then stopped. Hard reboot was the only solution.

Maybe a clean install would help but the process hurts so much.

I am using 15 inch MacBook Pro Retina 2015 with dual VGA. I am experiencing the same problem which I notice always happen if I open some tab / windows in Safari and doing mission control.

I have tried using Safari Technology Preview, still no luck.