Involuntary reboot log 14.1

Kernel panic while trying to reboot. This is the first recorded failure I’ve had for this machine (there may have been non-recorded failures though[1]). Battery drained fast, something putting machine under load, load average then shot up to astronomical levels:

$ uptime
 13:55:37  up 1 day  3:15,  5 users,  load average: 343.29, 177.94, 77.20

The panic happened while I was trying to restart the machine. Brief excerpt:

panic(cpu 0 caller 0xfffffe002b555210): userspace watchdog timeout: no successful checkins from logd (0 induced crashes) in 120 seconds
service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.drain-mem, com.apple.firehose.io-wl
logd has not exited since first loaded
service: logd, total successful checkins in 169 seconds: 3, last successful checkin: 120 seconds ago
service: WindowServer (2 induced crashes), total successful checkins in 110 seconds: 1, last successful checkin: 100 seconds ago
service: opendirectoryd, total successful checkins in 169 seconds: 14, last successful checkin: 0 seconds ago
service: configd (1 induced crashes), total successful checkins in 169 seconds: 3, last successful checkin: 120 seconds ago

Debugger message: panic
Memory ID: 0x6
OS release type: User
OS version: 24F74
Kernel version: Darwin Kernel Version 24.5.0: Tue Apr 22 19:52:00 PDT 2025; root:xnu-11417.121.6~2/RELEASE_ARM64_T6031

Statistics so far for this machine

  • Failure type: kernel panic
  • OS version: Sequoia 15.5
  • Uptime at moment of failure: a little over 1 day
  • Kernel panics: 1
  • Hard resets: 0
  • Total failures: 1
  • Start of recording keeping: 6 June 2024
  • Total days to date: 1
  • Average time between failures: 358 days

Summary of events for this machine

  1. 2025-05-27: kernel panic while rebooting the machine to "cure" state of being permanently unusable due to continuous high load.

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)
🟢 94.4 days 1,667+ 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)
🌑 170.6 days 853+ days 12.x MacBook Pro 13-Inch "M1" 8-Core 3.2 (2020) work machine (GitHub)
🟢 1.0 days 1+ days 13.x MacBook Pro "M3 Max" 16 CPU/40 GPU 16" (2023) personal machine
🟢 358 days 358+ days 14.x MacBook Pro "M3 Max" 14 CPU/30 GPU 14" (2023) work machine (Datadog)

  1. Specifically, this is not the first time I’ve had to reboot this machine because it was apparently stuck in a permanently high load state. Maybe on those other times too there could have been a problematic reboot. ↩︎