Since installing Catalina yesterday, multiple crashes from userspace watchdog timeout

The vast majority now have no problems with crashes with 10.15.6-> onwards.

The feedback assistant, as you pointed out, is only available to users on the Beta program

Regular users should use apple.com/feedback site instead.

In honor of the 1st anniversary of this thread, I figured I'd post my 2 cents.

I have a MacPro (Late 2013). In the last month Apple completely replaced both GPUs, the Logic Board, the CPU Riser with the CPU and the central heatsink. So yeah, practically not even the same computer. I'm on 10.15.7 now and this problem that everyone has been having is absolutely persistent. Sometimes I'll go a full day without a crash, sometimes I'll go 5 minutes and that's it. Last night I just couldn't take it anymore, so I did a complete wipe and clean install of Catalina. 20 minutes after I still hadn't installed a single application. I opened up Safari and started downloading 2 application to install (still not installed), and then it happened again.

I am, however, using dual monitors. It's next to impossible for me to use just 1 now.

I've tried all of the basic resets, etc. and nothing. It's definitely not a third party software problem. Not sure why VM became such a huge topic in here, but maybe that just exacerbates the issue for some people.

I'm currently trying to use my computer with just one monitor plugged in and it seems to be working for about 2 hours now. We'll see. But, as I said, 1 monitor just won't cut it for me on a regular basis. Here's hoping Big Sur comes out soon and fixes things.

This has been running for over a year now with no real identification of the exact cause and no work around or fix available. A number in Mac Rumours have reprted that replacement logic boards have fixed the issue even on brand new machines out of the box. There appears there will never be a fix for this and no solution from Apple. The obvious answer if it happens too frequently is replace the Mac with an alternative. That seems to be the other work around.

Now that the new M1 macs have the exact same issue maybe some thing will happen. I've seen 4 people now return there M1s because of the watchdog failure. If this is a hardware problem then Apple carried over to the new architecture. Its pretty clear that after a year and new hardware this is a software issue with Macos.

I can repro reliably, Multiple crashes, I have external monitors

I turned off Time Machine and (so far) haven't gotten any more crashes......

Argh!

10.15.2 fixed it

I changed the monitor and the dreaded bug has come back!!!

(and I don't have the old one anymore...)

So you've also tried with beta 2 of 10.15.3?

Hi dankolding,

I created a new test user account on my MBP 2019 16". No issues when external displays connected and the test account being used. Just on my original account.

Argh.

Hi guys - I've also let Terminal be open and I haven't had any crashes either. Hopefully this next update works.

Please see the video I've made about the issue: https://youtu.be/nSDkkzi9rCI I believe I found a way to produce the kernel panic every 2-3 minutes.

I haven't seen the crash since 10.15.3 either, but maybe just luck so far? Anyone still seeing the problem have the possibility to try the 10.15.4 beta that's now also available to the public?

i spoke too soon, i'm still getting issues but not as often after turning off spotlight essentially, re-indexing didn't work

I got an EGPU which lets me use clamshell without crashes now. That said, I still have crashes if it sleeps after a while

I had this same behavior and it went away with 10.15.6, or so I thought. It's greatly reduced in frequency but after a week or so, I just had such a crash again this morning