Big Sur kernel panic

I jinxed it... it crashed 40 minutes after I posted the above. Not sure if turning off wi-fi prolonged the uptime though.

Yes, unless it is some internal hardware fault. There is a very small possibility of some problem with an Apple kernel extension, but not likely.

Giorgio, did you ever run Catalina on this machine?

I would like to hear from the people who blame faulty hardware. Why can Giorgio get back to normal by reverting from Big Sur to Mojave?

Would recommend this practice. Ended up doing the same. Users can continue to run 32bit dependent code when necessary while taking advantage of more modern MacOS when permissible.

Ok, thanks. Just for the record, should I say this recommendation comes from Apple?

Thanks for the tip AppleToTheCore, I will try a different MacOS as it has been addressed earlier on this chat.

The MacBook Pro 16 shipped with macOS Catalina and cannot run macOS Mojave.

Macs can not run operating systems older than that with which they originally shipped.

Thanks Dogcow-Moof for the information - it is noted.

rbmanian75 wrote:

Recently i upgraded to Big Sur and i leave the computer for some time and came back and see that the system was rebooted with kernel panic. any help would be appreciated to fix the issue.

Here is the log i get when the imac pro is started

panic(cpu 4 caller 0xffffff800e153a13): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

<Kernel Panic Log.log>

Kernel Panics are predominately caused by hardware faults or faulty third-party kernel extensions.

I would try and upgrade your Parallels Desktop or delete it using the official uninstaller and test.

You can trouble shoot further, as a test:

—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot and test as caches get rebuilt.

In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.

This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.

—Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

This will tell you if it a universal issue or isolated to your user/admin account. 

Update:

I seems to be the case that there is a kernel panic when:

1. two external monitors are connected (2x LG 27UD68-W)
2. the computer is idle for some time

If I have only one monitor connected the kernel panic does not seem to happen.

I am not running any external monitors, but have made the following changes to further troubleshoot.

• Disabled Automatic Graphics Switching for Battery and Power Adapter "states"
• Set "Turn display off after:" to "Never" for Power Adapter "state'

Made those changes this morning and have not crashed yet.......will see if it makes it through the night :-)

I agree NJ Ron. I've also went through and removed the one last legacy kernel extension from OWC Computing that was being flagged on reboots........but I agree that any lasting fix for this issue will require an update from Apple :-(

I am also getting kernel panics at night if I leave the computer on, or sometimes when I shut the computer down I get one. I also got one while playing World of Warcraft. I have a 2014 iMac 27". Something is definitely not working right.

Curious how many with this issue are running Little Snitch? I am and just received a notification of an update for it.....so will see if if makes a difference. If anyone has any additional insights on how to read the Apple dumps to better isolate what is causing the issue....let me know.....they are not very useful from a general user perspective (but I still submit them all to Apple) :-).

I am going to throw a possible solution to you guys.

I am hesitant to call it a solution because it deals with unchecking a box under BATTERY settings.

I don't run my laptop on battery. However, I do use an external monitor sometimes and this setting has something to do with that.

Allegedly, this fix has worked for a few people. I would suggest to try it. I changed my battery setting yesterday and so far, no kernel panics.

https://medium.com/@canartuc/kernel-panics-in-new-macbook-pro-16-solution-is-here-2ac1d88fada7

Jump down to the diagram where it shows you to go into SETTINGS -> BATTERY and uncheck the box.

There is also instructions to disable GRAPHICS SWITCHING but I don't want to play with that just yet as it can cause some undesirable issues.