Catalina 10.15.6 keeps crashing

I have a problem. I updated to macOS 10.15.6 and now my system keeps crashing when I leave my computer for some time. Here is the crash report (some data removed for privacy concerns)


panic(cpu 2 caller ): userspace watchdog timeout: remoted connection watchdog expired, no updates from remoted monitoring thread in 69 seconds, 2219 checkins from thread since monitoring enabled 44430 seconds ago after loadservice: com.apple.logd, total successful checkins since load (44430 seconds ago): 4443, last successful checkin: 10 seconds ago
service: com.apple.WindowServer, total successful checkins since load (44400 seconds ago): 4431, last successful checkin: 10 seconds ago

Backtrace (CPU 2), Frame : Return Address
......
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)

BSD process name corresponding to current thread: watchdogd
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev chunklist-security-epoch=0 -chunklist-no-rev2-dev

Mac OS version:
19G73

Kernel version:
Darwin Kernel Version 19.6.0: Sun Jul  5 00:43:10 PDT 2020; root:xnu-6153.141.1~9/RELEASE_X86_64


Any idea what I can do? Please help, my system is unusable. I cannot restore my workspace every few hours when I leave my computer unattended.

MacBook Pro Retina

Posted on Jul 21, 2020 3:08 PM

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Question marked as Top-ranking reply

Posted on Aug 11, 2020 2:51 PM

Ok what worked for me to fix it is by reinstalling the operating system. I also deleted parallels desktop because i read some things about vm software messing up this update, but basically i just followed this link https://support.apple.com/kb/HT204904

With these being the more direct instructions

1 Restart your Mac and immediately press and hold these keys: option, Command (⌘) and R. 

2 Release the keys when you see an Apple logo, spinning globe, or other startup screen.

3 You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested

4. Startup is complete when you see the utilities window

Just backup your files first and create a time machine backup if you can. I didn’t lose anything however. Also make sure you have a stable internet connection throughout.

195 replies

Sep 3, 2020 1:57 PM in response to BowAndArrow

I likewise installed update on my MacBook Pro and it crashes after period of no use... everything is locked up and I have to do a hard reset... also have lost use of my webcam within the past week.... tried all of the camera reset options but is not recognized by my apps that use the camera. Not necessarily attributing camera issues with updates. However, the timing of these issues might be more than coincidence. I stream video with HULU and for 3 days, Hulu could not confirm my location and would not allow me to stream... again, not sure why the problem was happening but couldn't get anywhere with troubleshooting....

I thought only PCs have these problems... Apple! You're letting me down.

Sep 5, 2020 11:41 AM in response to SwampMan128

Sixteen days without crashes, but today I had een issue with Firefox which updated itself to version 80.1 and gave the following message:


The help page of Firefox advised to restart the Mac, which I did. No problems with restarting, but the problem was not not solved. so I tried the following advise of the help page of Firefox:


After following these steps, everything was working again. The message about safety software makes my anxious about Malwarebyte, it is the only safety software that is on my Mac. I haven't used that program since the last hard reset.



Sep 22, 2020 7:16 AM in response to alekseyfromsan francisco

My mac crashed the first 5 minutes after the install (a while back). After that it stayed up. It has crashed 3 times since then.


I am writing now because it crashed shortly after booting up and turning on some music in my Chrome Browser.


I'm on a Macbook Pro 2019 i7 - It might be too old - Apple I think only tests software in 6 month manufacture iterations apparently. :thumbs-down:

Sep 22, 2020 7:41 AM in response to nathanh0

3rd crash in 30 minutes.


Narrowing it down to an external hard drive. Trying to now wipe my time machine disk, it can't even eject it.


Apple you guys probably need to see if you guys know how to read external hard drives without crashing the whole computer. This might be something to add in your OS after 20 years (or maybe you should have never made Catalina because this OS sucks)

Oct 3, 2020 11:37 AM in response to Old Toad

Thank you Old Toad. I just had another crash and I am using macOS 10.15.7. The MB_MBAM_Protection.Kext file is the only file left and according to the Malwarebytes site, it can cause no harm. I think the problem I am having now, is somehow caused by the Mail app. It behaves strange slow to start, showing mail boxes, messages but when I select a message the full mail appears, and then disappears and showing "no message selected".

If my problem is connected to the MB_MBAM_Protection.Kext file, I will follow your advice!

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Catalina 10.15.6 keeps crashing

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