"iMac Pro" kernel crash

I have a new iMac Pro 8core 32gb ram 1tb SSD and Pro Vega 64

(attached are a usb hub, usb audio speakers, usb trackball, thunderbolt 3 raid with a thunderbolt 2 raid chained to it via thunderbolt 3 to thunderbolt 2 adapter)


I am looking for input


Within the first 8hours I had two kernel Panics but now seem ok...my iMac shut off and rebooted by itself...both logs have {"caused_by":"macos","macos_system_state":"running","bug_type":"210","os_versio n":"Bridge OS 2.0 .....


To note my Logitech software wasn't recognizing my trackball but it worked ...after crashes I unplugged and replugged the trackball and the software was able to see it.


Should I be concerned?

iMac Pro (2017), macOS High Sierra (10.13.2), null

Posted on Jan 9, 2018 7:25 PM

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Posted on Apr 4, 2018 5:12 AM

So my problem has been temporary solved these are the step I took


1) I erased my hard drive and reloaded mac os

2) i disabled sleep and power nap

3) I removed a sonnet chassis on the the thunderbolt drive that contained a PCIe card ( this seemed to be the solution)

It seems when this card was on the thunderbolt connection to the computer at the same time my la cie hard drive was on thunderbolt crashes occurred frequently. they were never daisy chained and had their own port. Disconnecting either seemed to solve random crashes.The card inside was a universal audio card.

the crashes that happened overnight stopped when I disabled power nap.

4) As others thought the crash is related to daisy chaining I disagree as on another thunderbolt port i have several hard drives daisy chained. It seems certain devices are not playing well together on the thunderbolt data pipe wether or not they are on the same port or not.


I will update if I have any more crashes. The problem is now I can't use my Universal audio PCIe card 😟

277 replies

Jan 14, 2018 5:06 PM in response to MFASM

I am having the exact same kernel panic problem with my iMac Pro with a 10 Core 64GB RAM 2TB HD and Pro Vega 64 running macOS High Sierra version 10.13.2. I've unplugged all peripherals from the computer and still experiencing the crash. Each time the error log states the same {"caused_by":"macos","macos_system_state":"running","bug_type":"210","os_versio n":"Bridge OS 2.0.


At this point, I can only assume this has to be fixed with a future update to MacOS as I feel it's a bug. I've yet to try wiping my computer and starting over from scratch. Hopefully, a solution to the problem will be released soon!

Jan 21, 2018 7:58 PM in response to MFASM

Hey folks I am having exactly the same problem... (iMac Pro 10Core/32G/1TB/56) and it sounds to ME (IMHO) it's the Thunderbolt 3 to Thunderbolt 2 adapters! They just can't take the strain. I have 3 LaCie drives, one black SSD 1TB, 1 3TB LaCie D2 and 1 10TB LaCie D2. And a Synology DS411+ NAS, but that doesn't seem to play into this. Anyway, I'm following through this incredibly useful thread and have turned off Power Nap first. By the way, my support advisor said to boot in safe mode which I did, and I had no issues. Sounds like a 3rd party extension, right? But when you boot in safe mode a bunch of internal settings get reset, and I'm betting Power Nap is one of them! Anyway, will let you know.


But let me ask please??? is anybody having any other strange iMac Pro issues? For me with 10 cores, I wanted to see them perform graphically, so I brought up Activity Monitor, clicked on CPU and then did Command-3 which brings up the individual CPU History bars. Well I ended up with these strange artifacts trampling the display. This only started today! Thanks again.

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"iMac Pro" kernel crash

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