What is SOCD report detected: (AP watchdog expired)?

OK, but I have had my C920 connected all this time and I don't think it ever caused the issue, just connecting my Canon all-in-one printer. DIsconnected the printer and it has never happened again, even though the camera has always been connected.

I am just pointing out that prior to logic board replacement I faced this issue consistently for the last 6 months. So this could be a potential hardware fault.

I used an Apple certified repair place and they called Apple and got it cleared under warranty. Good luck 🍀

Just got this error recently. Doesn't happen often, maybe one every 3-5 days if my Mini is left on. Problem is, resetting the SMC on the M1 isn't something you can do. It functionally reset the SMC every time you power it off. It's not a troubleshooting step that can be taken. I've heard it can be related to using a USB hub, which is necessary for myself and well as many others as two USB-A and two USB-C (Assuming you don't use a second monitor) is hardly enough. If I get it a third time I'm going to submit a support ticket about it. We'll see what happens with the next update.

Wrong, try again.

In your arrogance, you overlook that FACT that I solved the issue on my M1 Mac by changing the USB externals. Read again closer and show some reading comprehension Mr Not-A-Guru. In addition to troubleshooting the hub, I also reported the issue with one USB-A ext drive.

Currently, I have the same USB-A hub plugged into a Thunderbolt port using a USB-A to USB-C adapter with two externals plugged into it and have not experienced the issue in weeks.

There may actually be multiple causes.

Move along if you've nothing to actually contribute.

I wished I was more aware of what I was doing in the moment. I believe it's after typing in the pasword, it asks us if we'd like to reload everything that was previously open. Choosing to do that just reloads the bug apparently. I haven't had an issue so far today since I hit the other option.

There seems to be a much more active thread for this discussion here:

https://discussions.apple.com/thread/252437781

I suggest you read the other thread, it has had more discussion than this one.

https://discussions.apple.com/thread/252437781?r_s_legacy=true&page=1

Hi circatee,

Thanks for coming to Apple Support Communities for help today with the error message on your M1 Mac mini.

We'd like to look into this a bit further with you. Please be sure the Mac mini is fully updated and visit: Get Support.

Have a fantastic day!

A watchdog timer (WDT) is a hardware timer that automatically generates a system reset if the main program neglects to periodically service it. It is often used to automatically reset an embedded device that hangs because of a software or hardware fault.

I'm running the latest BigSur 11.4 and it just happened to me again. I had the issue once before and I had read previously that it was suspected to be related to having USB-A port hub connected, so I was able to disconnect that. I have had a month or so without reboots, but last night, it happened at 3:26am while I was asleep. I still have a 1TB external SSD connected for TimeMachine via a Thunderbolt port and an external monitor connected via the other Thunderbolt port with a USB-C to HDMI converter cable.

I did have some Bluetooth sputtering yesterday which appeared to be related to the CONWIN headphones I had connected that had most likely just run out of battery. Once they were disconnected, all the other Bluetooth devices remained connected and behaving properly again. And that was without rebooting or power down.

I updated the CalDigit firmware and will report back if that made a difference. My crashes are few and far between, so that may take a while.

Thank goodness fir WFH, I never lost anything on the host computer due to these sudden, violent, green screens of death.

For me the 11.4 update seems to have fixed it, but who knows if that'll stick.

I also experienced this with a CalDigit hub attached.

Heh, surprise surprise, I just had the second instance of this crash happen with a similar (or the exact same) dock plugged in!

Is yours the SABRENT HB-UMP3 specifically?