Error Message EVERY TIME I boot up?

if there was a problem, there should be a panic report:

Kernel Panic Reports are stored at:

/Library/Logs/DiagnosticReports

If you copy and paste that string into:

Finder > Go menu > Go to Folder

it will take you to where those reports are stored.

They are named with Date&Time and start or end in ‘panic’

If you find one, please post the entire report here, by using the “additional text” Icon in the reply footer (looks like a paper with writing).

Please don’t post more about 20 lines of any other types of reports — they are interminable, and any information useful for this purpose is on the first screenful.

I don’t find any report that contains the word Panic, either at the start or end.

There is a report: Sleep Wake Failure_2022-01-08-145051_iMac.diag that would be the right timing for when the problem first appeared. It seems I am not the only person who is inquiring about this problem.

Sleep Wake failure in EFI

Failure code:: 0x00000000 0x0000001f

Please IGNORE the below stackshot

================================================================

Date/Time: 2022-01-08 14:50:28.595 -0600

OS Version: ??? ??? (Build ???)

Architecture: x86_64

Report Version: 35

Incident Identifier: 4ACDA53C-47D2-4F3B-AFF3-0FC53F9C36C4

Data Source: Stackshots

Shared Cache: 3D05845F-3F65-358F-9EBF-2236E772AC01 slid base address 0x7ff80964e000, slide 0x964e000

Event: Sleep Wake Failure

Duration: 0.00s

Steps: 1

Time Awake Since Boot: 25s

Process: swd [296]

Architecture: x86_64

Footprint: 400 KB

Time Since Fork: 5s

Num samples: 1 (1)

Thread 0x768 1 sample (1) priority 4 (base 4)

<thread QoS background (requested background), thread darwinbg, process darwinbg, IO tier 2>

1 ??? [0x10038b000] 1

1 ??? [0] 1

1 ??? [0x10962a4fe] 1

1 ??? [0x10038e454] 1

1 ??? [0x10038e1e8] 1

1 __stack_snapshot_with_config + 10 (libsystem_kernel.dylib + 149174) [0x7ff80994f6b6] 1

*1 ??? [0xffffff800023c226] 1

*1 ??? [0xffffff800099fcaf] 1

*1 ??? [0xffffff800089a112] 1

*1 ??? [0xffffff800025fe57] 1

*1 ??? [0xffffff800029c3dd] (running) 1

Binary Images:

0x7ff80992b000 - 0x7ff809961fff libsystem_kernel.dylib (8019.41.5) <12BD6F13-C452-35EE-9069-51BEFEF29F1A> /usr/lib/system/libsystem_kernel.dylib

then post 20 lines of that one and lets see what it seems to say.