SOCD report detected: (AP watchdog expired)

I was talking on Whatsup and Viber at the same time with two of my colleagues where my USB-C-HDMI converter was plugged in to display a secondary screen as I mentioned above, I was using a USB-C charger of my iPad Pro which is only 30W instead of the 60W charger shipped with my Macbook Air.

still happening for me on mac mini m1 8/256. frustrating because i thought this platform would offer stability. i don't like when my workstation crashes in the middle of something at random. it can be very costly.

this issue really seems to be a low level bug with m1 and legacy usb. i really wanted to like m1 but feel like it's time to switch to something more reliable.

Frequent shutdowns / resets create their own problems. My Time Machine drive sometimes stops working and goes read-only, when I shutdown or restart. It can sometimes be corrected by another restart, but often it needs to be reinitialized. Also, my USB devices always disappear when I restart the computer. This requires me to re-plug the USB cable after each restart.

Apple is in the process of shipping me my THIRD M1 Mac mini. Hopefully I will have better results.

Welp, I really hope this finally gets fixed in an OS update, and soon.

I was seriously contemplating returning my M1 Mac mini solely because of this SOCD watchdog bug, as my return window is closing imminently. As someone who relies on constantly transferring data between externals, it's an absolute deal breaker for me. It just happened to me again the other night, right after a fresh restart...the 4th time in the few weeks I've owned this Mac. The last incident, it was WHILE I was transferring data. So now this bug has me constantly afraid that my system will glitch out and reset during a disk write, corrupting the data on one of my drives.

I've loved absolutely everything else about using this M1 Mac, but having to constantly fear that your system is gonna go haywire randomly and possibly corrupt your data is just a big no-no. And yes, I do have all my important data backed up through multiple avenues.

I've had my Mac Mini M1 for a few weeks now and while it has rebooted on its own a few times I didn't look into why until today. I got the same brief error in the log as everyone else. I have numerous things connected to the USB (Mics, KBs, and Cameras) but no USB drives (yet). I am migrating to it from an MBP which has a time machine drive. So I'm hoping this gets resolved before I connect a drive for backing up.

I just had this error for the 3-4th time this year.

Mac Mini M1 / 1TB / 16GB / Big Sur 11.4 (Purchased in January)

I just have a monitor plugged into the HDMI, Network cable, and USB Hub from Orico, no external drives, other than drives in other Macs on the network.

I had this same crash (SOCD report detected: (AP watchdog expired). It had the static, crackling sound and then rebooted. Machine is M1 MacBook Air 16GB, 1TB storage, running 11.4.

It occurred in the middle of the night, while the machine was idle and had been for an hour or so (although Chrome, Evernote, and Slack were open). I do not have an external drive connected. I do, however, have a CalDigit TS3 Plus dock connected. It has Ethernet and a monitor (DisplayPort) connected. The dock also provides power to the machine. I've had this machine for about a month and this is the first occurance.

I can add my specs, not that it's terribly useful either.

• Mac mini (M1 2020)
• 16 GB memory
• 256 GB storage
• Big Sur 11.4
• Never migrated from anything, but activated with an iCloud account that had 30-50GB of crap in iCloud Drive folders synced to the desktop
• Peripherals:
  • HDMI: Main monitor (LG 24U58-B, EDID identical to the 27" model, so both claim to be 27")
  • USB-C 1: Second monitor via DisplayPort to USB-C cable (Dell P2414H)
  • USB-C 2: Sabrent EC-T3NS equipped with a Samsung 980 Pro 1TB M.2 SSD
  • USB 3.0 1: Powered USB 3.0 hub, which also has both an unpowered USB 3.0 switchable hub and the P2414H's USB 2.0 hub plugged into it
  • USB 3.0 2: Apple SuperDrive that Apple stopped identifying the model name of thanks to System Integrity Protection (It used to come up with the correct name on Intel Macs when it was plugged in prior to booting.)
  • Ethernet cable (I always use Ethernet with desktops anyway. But not only is the WiFi unforgivably bad, so is the Bluetooth!)

Did reinstalling help? Don’t want to go through the trouble if not.

I was in the middle of hosting a Zoom event and got a green screen/restart/then the SOCD report detected…

Applecare suggested reinstalling OS.

This reminds me why I typically like to be an OS behind…

PS. The only external device I have attached is my monitor.

got my first restart early this morning on 12 beta

nothing popped up though about SOCD. only see this in Diagnostic Reports

{"bug_type":"115","timestamp":"2021-07-14 03:03:43.00 -0400","name":"Reset count","os_version":"macOS 12.0 (21A5268h)","incident_id":"E5CAB197-633A-4E7F-8386-97C539D9FF84"}
Incident Identifier: E5CAB197-633A-4E7F-8386-97C539D9FF84
CrashReporter Key:   B354EA1A-7B9E-66CA-142E-48E44F8F4D31
Date: 2021-07-14 03:03:43.54 -0400
Reset count: 0
Boot failure count: 1
Boot faults: wdog,reset_in_1
Boot stage: 255
Boot app: 0

side note: i plugged in an external usb to sata adapter to move a file about 5 hours before this crash.

Updated to 11.5 the other day and this bug just happened to me again today. And once again, it was during a file transfer to an external HDD. I will be setting up a return and refund for my M1 Mac mini as I can't stress enough how fatal this can be to a hard drive in terms of data corruption. This time, my system froze and the screen flashed pink instead of green before restarting. I sent the diagnostic report to Apple, as I have been doing in the past.

I will monitor this thread and OS updates to see if this ever gets fixed, but for now I cannot use these M1 systems in their current state with these random, haphazard reboots. Hopefully this bug doesn't persist into Apple's upcoming M1X/M2 computers.

I have a MacBook Air (M1, 2020), running Big Sur 11.5.1 (up-to-date version for August 5, 2021).

Mac just shut down and restarted on itself. Samsung T7 SSD connected directly to Mac via Samsung USB-C USB-C original cable. SSD used for TimeMachine. TimeMachine working at the moment of crash. Error reported after restart: AP watchdog expired. I've sent report to Apple.

Whatever engineers fixed in pervious versions of Big Sur was not enough. Problem still present.

i disabled SIP, and now going to try logging with dtrace to see if i can gather more data about the panic. honestly this is not something i expected i'd be doing when i switched from Linux to macOS, but maybe this is normal.

Updated to 11.5.2 yesterday and just got my first green screen reboot in over a month.

Previously only had this green screen reboot when I had my USB Blu-Ray Drive plugged in to read some old media. This time just happened with my SanDisk SSD, Keyboard and Mouse plugged in. (never did it before with that)

Happened while watching Twitch, last time it happened was with Twitch or Youtube (I forget). Anybody else notice it happening with video playing?

Drat, just happened again, this time on 11.5.1. The usual stuff connected: HDMI monitor, USB A powered Hub with a drive and some peripherals, small USB C>USB Hub with my wireless keyboard dongle. Time to do the dance with Apple once again and email logs. So annoying.