Continual kernel panics Pegasus 2 R4 when mounting APFS volume in MacOS High Sierra 10.13.3

  • Last Post 17 December 2018
James Blake posted this 01 February 2018

I've got a Pegasus 2R4 with a volume that is formatted with APFS that is causing continual kernel panics on any system it touches - MacBook Pro 15 through an Apple Thunderbolt 3 to Thunderbolt 2 adapter; a iMac Pro with the same adapter; or the Thunderbolt 2 cable into a MacPro.  With every one it takes about 3 - 10 minutes to freeze the machine and when I reboot I see that there's been a kernel panic.

I've scrubbed the MacPro clean to a virigin High Sierra install.  I've also tried it with-and-without the Pegasus drivers and firmware is the latest version.

Anyone else experiencing somegthng similar?  My whole personal and working life is on those disks and I really need to get access.

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Pradeep Chidambaranath posted this 01 February 2018

Hi James,

Could you kindly install the latest Pegasus2 dirvers for High Sierra to see how it works.Go to the link below to install the latest version of drivers.

If you still have issues after installing the latest drivers, please create a support ticket with the latest subsystem report, MAC system profiler and the panic logs for further investigation.

Go to the below link to download the latest version of the utility.

Follow the below step to save the subsystem report for further investigation.

- Open Promise Utility.
- Click subsystem information icon on the top of the window.
- Click the lock symbol in the left bottom corner of the screen to unlock the utility.
- Click on save service report button to save the subsystem report.

Follow the below steps to save the MAC system profiler.

Mac system profiler (Click Apple Icon > About this Mac > More info > System Report > Choose 'File' & 'Save')

Go to the link below to get the step by step instruction on how to save the panic logs.

Pradeep C

James Blake posted this 01 February 2018

Thanks for your response.  I'll raise a ticket, however:

1. Using the latest drivers (as I mention in my post)

2. Can't run Mac System Profiler with drive attached as it crashes as soon as the drive mounts.

3. Can't rom Promise Utility report with drive attached as it crashes as soon as the drive mounts.

I've also booted into Online Recovery mode and run Disk Repair on the volume.

Vitaliy Lyubezhanin posted this 14 July 2018

I have the same exact issue. 

I created a new raid, formatted in AFPS. Was copying about 10 TB when all of a sudden, my iMac pro started crashing. It'd restart, and same thing. Unplugging the Promise Pegasus2 R6 would allow me to boot. 

Trid on an older imac (2015 5K iMac), Same thing. Crashes it within 30 seconds of connecting the raid. Interesting thing is, the light on the front of the promise turns orange for a little bit, then blue, connects and crashes the sysytem. 

I made sure I'm using the newest firmware (i was able to log in for like 30 seconds to take a look in promise utility). I made sure I'm on the latest update (even updated to 10.13.6). 

I'm stuck!!!! Should I just format it in Mac os Journalled very quickly? or break the raid or something... my work is on pause as I can't really work off of the backups. 

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Sandor Ferenczy posted this 17 December 2018

I have had the same issue with Vtrak's that were formatted AFPS.

Looking around, and testing, the issues seems to no be Promise, but OS X with external spinning hard drives formated as AFPS - they are causing kernel panics on every OS i can test on (10.14, 10.13, 10.12, 10.11)

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