busy timeout[0], (60s): 'AppleAPFSMediaBSDClient'

11.6.6 is out. Have you tried that on 11.6.6?

have you tried 11.6.8?

I'm having exactly the same issue with my M1 MacBook Pro (2021). The key steps are

• it started happening after upgrading to 11.6.2
• it occurs when awakening after having disconnected an APFS volume (used for Time Machine)

Here is a little manual to eject your external disk drive with "one-click":

Detect the drive you want to eject. Open Terminal, type "diskutil list" and press enter.

Choose the given device. In my case: /dev/disk4

Now create a new shell script file

touch eject

Edit this file

nano eject

Press the button control ^ + x and save the file

Make this file executable

chmod a+x eject

Now you can move this file to your Desktop with "Finder" and you can execute by double click on it :)

Yes that issue is fixed in Monterrey, but then in Monterrey when one uses Text Edit to "open recent" file, Text Edit crashes....even in 12.3.1. I'm wondering if that will be fixed by the time Apple releases Monterrey successor :)

Have you tried 11.6.7?

I am successfully able to reproduce this error. For me, the crash happens after a TM backup, followed waking the Mac after putting it into sleep mode. I sent comments and links to this thread in the crash report. Perhaps that will add to your feedback and move this fix along.

Like you, I’m not ready to upgrade to Monterey.

I'm also having exactly the same issue with a MacBook Air (M1, 2020).

It also started happening after upgrading to macOS 11.6.2

It also occurs when awakening after having disconnected an APFS volume (used for Time Machine)

Updating to macOS 11.6.3 does not resolve the issue.

It is still an issue that is not fixed with OSX 11.6.4. As it tends to occur when opening MacBook Air (M1, 2020) after a period of sleep it may indeed be a problem with Time Machine, I will try to reproduce the issue by running a scheduled backup.

This issue is fixed in Monterrey,... but as I developer I need to stay on Big Sur a bit more. Can Apple fix the issue please ?

Doubt it is anything to do with the OS versions quoted as it just happened on My M1 iMac with Ventura 13, can't get much newer than that version?

rainer114,

Thanks for letting us know. The numerous steps in the previous articles can help isolate if the issue is software or hardware. Can you tell us all the steps you've taken? That way we aren't providing any that have already been done.

Have you noticed that you are doing a certain task when the kernel panic happens? For example, using an app, opening an app, so on. Knowing his can also help isolate what might be going on.

Take care.

Rainer 114: Appreciate you writing "This take me a lot of time, with actually NO effect..." (saving us all time)

I'm having the same kernel shut down issue on my "new" MBP 13 M1.

One additional piece of info from my end...Maybe coincidence but did not have this kernel shut down problem until AFTER 11.6.2 update.

I'm having exactly the same issue with my M1 Air (2021). As 2to3sherpas said, I also believe this started happening after upgrading to 11.6.2. Hence, this should be easy to fix in a future update, though I have to point out that this bug is extremely annoying.