New Promise 4.06 utility crashes my macMini M1 after installation. Pegasus 2R4 'gone'

  • Last Post 26 October 2021
Palle Jensen posted this 20 October 2021

This has been working fine, but now it crashes. The pegasus stays on (Blue led) but no connection via my Corningcable. On ly by disconnecting power, and the reconnect power will the Macmini find the drive.

On my other system iMac 27, the update went smooth, so this bug is unexpected.


Kind regards

Palle Jensen


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R P posted this 20 October 2021

Hi Palle,

I have reproduced the issue in the lab and will be filing a ticket with the dev team.

Till this Pegasus 2 issue is fixed, please uninstall the new utuility and load the release that came before it.

R P posted this 21 October 2021

Hi Palle,

I was able to duplicate the crash with the 6.2.13 driver, but after I updated to the 6.2.17 driver everything seems to be working.

Please update the M1 Pegasus driver to 6.2.17.

Palle Jensen posted this 21 October 2021

Hi again

I did what you suggested but it still crashes. I attach the report as .TXT

 OOpss it seems txt extension is not allowed. What do I do then. I can save it in a different format (using BBE)

R P posted this 21 October 2021

Hi Palle,

Please try zipping it. I'm not positive this will work, but it's worth a try.

Palle Jensen posted this 21 October 2021

hope it works, now as .zip but I cant see it is being uploaded

R P posted this 21 October 2021

Hi Palle,

I don't see anything attached.

Palle Jensen posted this 21 October 2021

No it seems it was not accepted. If you have another manner I can send you the txt file let me know



R P posted this 21 October 2021

Hi Palle,

It appears that you can upload jpeg files, please change the extention to .jpg and see if you can upload the file.

Palle Jensen posted this 21 October 2021

txt fil renamed to jpeg


Palle Jensen posted this 21 October 2021

cant upload, but here are the start of the file:


panic(cpu 3 caller 0xfffffe00116b4c34): "apciec[0:pcic1-bridge]::handleInterrupt: Request address is greater than 32 bits linksts=0x99000001 pcielint=0x002200a0 linkcdmsts=0x00000000 (ltssm 0x11=L0)\n"

Debugger message: panic

Memory ID: 0x6

OS release type: User

OS version: 20G165

Kernel version: Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:20 PDT 2021; root:xnu-7195.141.6~3/RELEASE_ARM64_T8101

Fileset Kernelcache UUID: 6304A06696A657F4CF48CC569B129642

Kernel UUID: DA16DC13-5845-3638-9BB4-B14F9AC08E55

iBoot version: iBoot-6723.140.2

secure boot?: YES

Paniclog version: 13

KernelCache slide: 0x0000000008488000

KernelCache base:  0xfffffe000f48c000

Kernel slide:      0x0000000008fd0000

Kernel text base:  0xfffffe000ffd4000

Kernel text exec base:  0xfffffe00100a0000

mach_absolute_time: 0x895f3a3a

Epoch Time:        sec       usec

  Boot    : 0x6171ab8d 0x0006f965

  Sleep   : 0x00000000 0x00000000

  Wake    : 0x00000000 0x00000000

  Calendar: 0x6171abe5 0x000640de


R P posted this 21 October 2021

Hi Palle,

This may be difficult to solve in the forum.

Could you open the system profiler and go to the extentions tab and scroll down till you find the promise STEX kext and verify the driver version that's loaded?

Palle Jensen posted this 22 October 2021

I guess this becomes too complex for me, I run MacOS in danish version so I am not sure what your suggestion translates to in the Danish version of macos.



R P posted this 22 October 2021

Hi Palle,

They say a picture is worth a thousand words.

Note the extensions tab takes a while to load.

The PromiseSTEX driver that's loaded should be version 6.2.17.


Palle Jensen posted this 23 October 2021

That is so true. I found it finally, but the 6.2.17 is NOT loaded! How do i make it load?

R P posted this 25 October 2021

Hi Palle,

I have noticed that sometimes a driver I just installed does not load. If that's the case I just load it manually.

Open a terminal and try the following...

sudo kextload /Library/Extensions/PromiseSTEX.kext

You can verify from the terminal with this command.

kextstat | grep promise

This will only show loaded drivers. What you should see will look like this...

promise@Promises-Mac-mini ~ % kextstat | grep promise
Executing: /usr/bin/kmutil showloaded
No variant specified, falling back to release
  225    0 0xfffffe0006e90000 0x4000     0x4000     com.promise.driver.stex (6.2.17) 69FB7EB9-DAAD-33B7-B348-8149A47F4B64 <224 61 5 4 3>
promise@Promises-Mac-mini ~ %

juytre juytre posted this 26 October 2021