THE LOOP OF DEATH Mac OS

Posted on  by

The run loop for your application’s main thread is a crucial piece of infrastructure. As a result, the app frameworks provide the code for running the main application loop and start that loop automatically. The run method of UIApplication in iOS (or NSApplication in OS X) starts an application’s main loop as part of the normal startup. Restart the Mac, then press and hold down the Command + Option + P + R keys when you hear the start-up chime. Continue to hold down the keys mentioned in the previous step until you hear the second start-up chime, then release the keys. Wait for the Mac to finish starting up.

As we shared earlier today, the macOS operating system — formerly called Mac OS X — is turning 20 years old this Wednesday, March 24, 2021. To celebrate the occasion, none other than Scott Forstall decided to use his Twitter account tonight to congratulate Mac OS X.

In a post on his personal Twitter account, which he doesn’t use often, Forstall celebrates the 20th anniversary of Mac OS X and remembers when Steve Jobs decided on the name for the 10th version of Apple’s operating system.

“I still remember when we named you. In a small room in IL1. When Steve slashed a large X on the wall and smiled. Look at how far you’ve come from a young Cheetah,” said Forstall. The system was named Mac OS at that time, but Apple had been working on a completely new version that came to be Mac OS X.

Long-time Mac users may remember that the first versions of Mac OS X were named after big cats, but that was only because Apple used “Cheetah” as the codename for Mac OS X 10.0. After that, the company decided to use the big cat names for other versions of OS X, such as Puma, Tiger, and Leopard.

The Loop Of Death Mac Os 11

Scott Forstall worked for NeXT with Steve Jobs since 1992 and joined Apple in 1997 after the company was acquired. He became SVP of software at Apple in 2003 and was deeply involved with the development of iPhone in 2005 — which made Forstall to be considered the “father of iOS.” In 2006, he took the lead in the development of Mac OS X as well.

Forstall left Apple in 2012 after the Apple Maps controversy in which the company replaced Google Maps with its own map solution, which was deemed unfinished and buggy. He was mainly replaced by Craig Federighi, who leads Apple’s software engineering to this day.

FTC: We use income earning auto affiliate links.More.

Charles Moore's Mailbag

Charles Moore - 2002.07.10 -Tip Jar

A few more letters in response to'Sleep of Death' ahardware-specific OS 9.2 bug?, Moreon the OS 9.x 'Sleep of Death' bug, and 'Sleepof Death' discussion continues.

Sleep of Death update

From Cedric Sullivan

Hi again,

I just wanted to update my situation. I have now experienced thesleep of death in 10.1.5. After a forced restart, I experienced abunch of problems. Programs were quitting unexpectantly - sometimesreported, sometimes not. I developed a really bad problem withwindows when they were dragged (note: I have window buffercompression enabled). Something else to note, window minimizingwasn't smooth at one point. Windows would jump from full sized tominimized in one step (perhaps some took two or three in a fewseconds time) and vice versa for the reverse. My keyboard stoppedworking in some programs as well. In the second example, I gave thewindow a real shaking. It appears to pick up the background windowsand desktop as well as parts of the window itself. The mouse pointeralso got a bit scrambled/noisy-square.

My System Preferences app froze up on starting it up. This was nottoo long after a startup! Anyway, I ran fsck; it founderrors and fixed them. I'd previously used TechTool Pro to rebuildthe directory. It reported some unusual changes, but I'd acceptedthem.

Right now my iBook is running fine.

Cedric

Won't wake up on earlier system

The Loop Of Death Mac Os Download

From Joel Anderson

Most of the writing about the 'Sleep O' Death' seems to say OS 9.2or later. I've experienced it on 9.0.4 after reformatting theinternal hard drive of the culprit (iMac DV) for other reasons. Ihaven't had another problem, yet. (two months) Knock on wood.

LJoel

Sleep of Death and Mac OS X

The loop of death mac os 7

From Jimmy James Champlin

Charles,

I've had it happen with OS X as well. On an iMac (summer 2001) 500and a blue G3/400, versions through 10.1.2 wouldn't wake from sleepwhen Network Time was enabled. 10.1.3 and later don't have theproblem. Interesting to note that Mac OS 9.1 and 9.2.x will workproperly with network time enabled.

I've also had it happen on a 1400 running 8.6 and 9.1 withoutnetwork time enabled.

Jim

Sleep of Death, possible solution

From Alvin Chan

I had that before, but now it's good. I never turn off the iMacanymore, and the problem went away when I set it to 20 minutes. Thesystem sleep is disabled (so it is still connected to the Internet),but the video and hard drive are set to 20 minutes before it sleeps.20 min was Apple's default. It's gone now and boots all the time=)

God bless,
Alvin

Join us on Facebook, follow us on Twitter or Google+, or subscribe to our RSS news feed

Charles Moore has been a freelance journalist since 1987 and began writing for Mac websites in May 1998. His The RoadWarrior column was a regular feature on MacOpinion, he isnews editor at Applelinks.com and a columnist at MacPrices.net. If you find his articles helpful, please consider making a donation to his tip jar.

Links for the Day

  • Mac of the Day: iMac G5 (iSight), introduced 2005.10.12. Apple built an iSight webcam into the last version of the G5 iMac.
Mac

Recent Content

  • Go to our home page for a listing of recent content.

Miscellaneous Ramblings©1999-2012 by Charles W. Moore. Low End Mac is an independent publication and has not been authorized,sponsored, or otherwise approved by Apple Inc. Opinions expressed arethose of their authors and may not reflect the opinion of CobwebPublishing. Advice is presented in good faith, but what works for onemay not work for all.
Entire Low End Mac website copyright ©1997-2016 by Cobweb Publishing, Inc. unless otherwise noted. Allrights reserved. Low End Mac, LowEndMac, and lowendmac.com aretrademarks of Cobweb Publishing Inc. Apple, the Apple logo, Macintosh,iPad, iPhone, iMac, iPod, MacBook, Mac Pro, and AirPort are registered trademarks of AppleInc. Additional company and product names may be trademarks orregistered trademarks and are hereby acknowledged.
Please report errors to .
LINKS: We allow and encourage links toany public page as long as the linked page does not appear within aframe that prevents bookmarking it.
Email may be published at our discretion unless marked 'not forpublication'; email addresses will not be published without permission,and we will encrypt them in hopes of avoiding spammers. Letters may beedited for length, context, and to match house style.
PRIVACY: We don't collect personalinformation unless you explicitly provide it, and we don't share theinformation we have with others. For more details, see our Terms of Use.

Follow Low End Mac on Twitter
Join Low End Mac on Facebook

Favorite Sites

MacSurfer
Cult of Mac
Shrine of Apple
MacInTouch
MyAppleMenu
InfoMac
The Mac Observer
Accelerate Your Mac
RetroMacCast
The Vintage Mac Museum
Deal Brothers
DealMac
Mac2Sell
Mac Driver Museum
JAG's House
System 6 Heaven
System 7 Today
the pickle's Low-End Mac FAQ

Affiliates

Amazon.com
The iTunes Store
PC Connection Express
Macgo Blu-ray Player
Parallels Desktop for Mac
eBay

Advertise

All of our advertising is handled by BackBeatMedia. For price quotes and advertising information,please contact at BackBeat Media(646-546-5194). This number is for advertising only.