Why are kernel panics now happening?

I have had kernel panics on my M1 MBPro recently-- four in three weeks. It seems to happen after waking from sleep, and in every case the first few lines of the crash report include the phrase: "busy timeout[0], (60s): 'AppleAPFSMediaBSDClient'"

I can't find much on this. Is anyone else experiencing this? It only started to happen after I updated the OS from 11.6.1 to 11.6.2 -- is this coincidental?

I realize that Apple will tell me to just upgrade to Monterey. But I want to know whether there is anything else I can do to avoid this. Is it likely to be a software issue, or does it look like a hardware issue?

thanks in advance -- Nick

MB Pro (13-inch, M1, late 2020)

macOS Big Sur 11.6.2

MacBook Pro 13″, macOS 11.6

Posted on Jan 3, 2022 5:33 PM

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Nick Dew Author

Level 1

16 points

Posted on May 17, 2022 7:47 PM

Just in case anyone is still following this: today I updated to Big Sur 11.6.6 and the problem is replicable exactly as before. That is: connect an external drive formatted to APFS; eject (dismount) the volumes; disconnect the drive from the USB port; put Mac to sleep; wake Mac from sleep; kernel panic occurs after approx 1 minute. So clearly nobody at Apple cares about this issue!

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Why are kernel panics now happening?

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