Mac Pro 2019 - Panic kernel and boot issue

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Level 1

4 points

Mac Pro 2019 - Panic kernel and boot issue

Hello to you all.

I have often used the community, but I didn't think I would be affected by such a problem that I can't handle on my own.

My Mac Pro 2019 (specs attached) + Radeon RX6800 is having great problems booting correctly. It started a few months ago, very rarely, kernel panic, two attempts to turn it on.

Now, on the machine I work on, it sometimes takes me an hour to turn on the computer through a thousand ways (reset PRAM, etc.)...

I tried booting without an external GPU card - same situation.

Can you help?

[Edited by Moderator]

Mac Pro (2019)

Posted on Oct 28, 2023 2:01 PM

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Answer 1

Top-ranking reply

Grant Bennet-Alder

Level 10

140,201 points

Oct 28, 2023 2:48 PM in response to mliszcz

Kernel panic is not ONE problem, it is one of Thousands of problems.

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 the Folder 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.

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Answer 2

Oct 29, 2023 11:56 AM in response to mliszcz

<<. AppleAHCIDiskQueueManager::setPowerState. >>

that is a drive problem.

But interestingly, that is a SATA drive problem, as the boot drive lLikely does not use AHCI, an older interface used by SATA devices.

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Answer 3

Oct 29, 2023 12:25 PM in response to mliszcz

Now you know what rocks to look under, based on at least one instance of a drive messing up..

Only you, with the direct ability to disconnect and reconnect your drives, re-boot and test again, can run the experiments to isolate this issue.

Would you like Readers to help you construct some test cases?

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Answer 4

mliszcz Author

Level 1

4 points

Oct 31, 2023 12:33 PM in response to Grant Bennet-Alder

Grant,

I was sure this is exactly what would happen :(

My happiness was short-lived. After a couple of normal launches, everything came back with a vicious force.

I tried booting for 1.5h testing new options again and again.

At the very end it booted without:

- Apple PCI board with 2x USB2.0, 2xTB3 and minijack

- Radeon RX 6800 TX

No external drive connected.

Below is a record of the kernel panic.

kernel panic v2

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Answer 5

Oct 31, 2023 2:58 PM in response to mliszcz

that one is a graphics kernel panic:

ATY,RadeonFramebuffer

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Answer 6

mliszcz Author

Level 1

4 points

Oct 29, 2023 11:48 AM in response to Grant Bennet-Alder

Thank you very much for the details of the way to submit data!

I am very hopeful that this will be a step is investigating what is going on in my mac.

As of yesterday, the system is booting at 1920x1080 resolution.

On my external screen (LG OLED 42inch C2) I always had it set to 3840x2610px in the display settings.

Below is the info that immediately displays after successfully turning on the mac:

panic kernel

In this folder: /Library/Logs/DiagnosticReports - I only have what's in the screen shot.

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Answer 7

mliszcz Author

Level 1

4 points

Oct 31, 2023 12:06 AM in response to Grant Bennet-Alder

Thank you very much for finding the problem!

Will definitely test all possible solutions. If I find something worth passing on - I will leave a comment.

But I do not know if it is the magic of Apple, or the malice of inanimate objects, but since our conversation, the problem has stopped appearing.... and it tormented me for over a month. :)

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Answer 8

Oct 31, 2023 10:04 AM in response to mliszcz

This principle (not named that I know of) has existed long before computers.

The most common case is making a car repair appointment for a few days away, to investigate storage noises... at which point the strange noises completely disappear!

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Answer 9

mliszcz Author

Level 1

4 points

Oct 29, 2023 12:15 PM in response to Grant Bennet-Alder

I have a LaCie 2big Dock Thunderbolt3 HDD connected via TB3-TB2 adapter directly to the TB3 port on my Mac + another same drive via TB3-TB3 daisy chain. These are the only Sata drives I use.

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Mac Pro 2019 - Panic kernel and boot issue

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