Involuntary reboot log 12.1

Not sure what happened here; I was away for an hour and when I came back the machine appeared to be off (non-responsive to Touch ID or closing/re-opening the lid). Additionally, the power switch didn’t seem to do anything. I plugged it into its power adapter (it had been plugged into its dock) and it immediately booted. Battery was fully charged, so it’s not that the battery drained while plugged into the dock. Nothing in the system logs gives an obviously clue to what went wrong.

Statistics so far for this machine

  • Failure type: hard reset
  • OS version: 11.4
  • Uptime at moment of failure: approx 33 days
  • Kernel panics: 0
  • Hard resets: 1
  • Total failures: 1
  • Start of recording keeping: 31 May 2021
  • Total days to date: 43
  • Average time between failures: 43.00

Summary of events for this machine

  1. 2021-07-14: machine spontaneously powered off while absent.

Historical data (all machines)

For comparison, previous generations of machines (from most oldest to most recent) that I’ve used have had averages of:

Active? Average uptime Total lifetime Log Model Description
~13.83 days ~540 days #1 — #39 PowerMac G5 personal machine
22.73 days 1,364 days #40 — #60 iMac (17", Early 2006) personal machine
20.06 days 321 days 2.x iMac (27", Late 2009) personal machine
19.11 days 707 days 3.x MacBook Air (13", Late 2010) work machine (Causes)
41.86 days 293 days 4.x MacBook Air (13", Mid-2012) work machine (Causes)
2.0 days 2 days 5.x MacBook (unsure of model) work machine (Causes), loaner laptop
27.176 days 462 days 6.x MacBook Air (13", Mid-2013) work machine (Facebook)
35.0 days 140 days 7.x as above, but with a replacement shell work machine (Facebook)
40.8 days 245 days 8.x MacBook Pro (Retina, 15-inch, Mid 2015) work machine (Facebook)
87.0 days 522 days 9.x MacBook Pro (Haswell, Mid-2015, dual graphics) work machine (Facebook)
80.64 days 1,129 days 10.x MacBook Pro (Haswell, Mid-2015, dual graphics) personal machine
n/a 844 days 11.x MacBook Pro 15-Inch "Core i7" 2.6 Touch/2018 work machine (Liferay)
n/a n/a 12.x MacBook Pro 13-Inch "M1" 8-Core 3.2 (2020) work machine (GitHub)