distnoted CPU Runaway...

Upgrade to macOS Sierra. This issue was resolved in that release.

Update 21/10/16

Upgraded to Sierra about 3 weeks ago - problem not seen since!

Anyone got ideas on what the issue was?

Upgraded to MacOS Sierra recently and the problem has gone away.

Like others I never saw this problem acknowledgement by Apple anywhere. It has been a frustrating few months living with this problem...

It seems to be a common issue with most major software support - there is never any recognition of the issue, and generally not even a mention in the release notes for the updates to say it was fixed. A huge amount of traffic gets posted to forums with people having the same issue and hoping someone has a fix or work-around. Yes, Sierra seems to fix this one, but my backup arrangements are still compromised by the lack of (fully) automated connection to network shares - and I still don't know for sure whether this is a deliberate permanent change or a defect.

Is Apple *ever* going to fix this problem? Or other problems that have been making users' lives miserable for years, like the problem with machines not wanting to wake up from sleep mode?

ksvanhorn wrote:

Is Apple *ever* going to fix this problem? Or other problems that have been making users' lives miserable for years, like the problem with machines not wanting to wake up from sleep mode?

According to the above replies from

• AhharrrMeHearties
• timcnelms
• i.lewis.au
• Ondray Wells Jr.
• AhharrrMeHearties

It was fixed in Sierra. All you need to do is upgrade your Mac.

I have found this problem with several of my clients. It was always when running Adobe Reader or Acrobat. As soon as I switched them to Preview the problem went away. I will try a Sierra upgrade but I don't think there's any real need for most of them to go back to Adobe software anyway.

I'm running a TM Migration copy of OSX 10.11.6 on a 3.3GHz Late 2015 iMac and getting the problem almost daily - usually after a period of sleep.

My 3.4GHz 2012 iMac did not have this problem - with the identical setup on it - so it is likely tied at least partially to hardware.

Besides the Disnoted freeze - I'm also getting multiple other smaller freezes the same time as noted in Activity Monitor the last time this just happened. All other times the machine was locked to the point I couldn't do anything anywhere other than power off.

Other simultaneous freezes (not responding)

XMarks Safari

KeychainCircleNotification

SystemUIserver

SafariWebContent (3 instances of this)

1PasswordMini

EscrowSecurityAgent

Safari

Unfortunately I cannot switch to Sierra as it breaks some programs I need.

Seems the only solution is to keep Activity Monitor open at all time sorted by %CPU and kill anything that starts going out of control - then restart.

Hey Linc - you are my Hero!

That fixed my Problem. No mad distnoted process since one week!

Thank you very much for that wicked solution 🙂

Cheers from germany

Robo

This seems to work after just updating my iMac to High Sierra! Whatever the temporary files are, they are persistently causing the disnoted high CPU issue today.

Thanks Linc!