"iMac Pro" kernel crash

There are reports on a MacRumors forum of folks having some similar issues as to the ones we've described here. One poster recommended the 10.13.6 update may help. Has anyone installed this update and noticed a difference? I'm jumping in....

Remember, the Mac Pro has some new hardware in it. A specialized chip that handles the boot process, encryption and Siri. It's possible some of the software is conflicting with this hardware. It's important to narrow down the issues to know what the culprit is so that the responsible party can fix it.

You iMac Pro folks should throw a welcome party for all of us new 2018 MacBook Pro users. These new laptops also have the new T2 chips and guess what? The same Bridge OS crashes that you are seeing.

My machine was fresh from the factory and I reinstalled everything rather than using Migration Assistant to avoid the "your old stuff caused it to crash" excuse. My computer has rebooted while sleeping twice in three days with the "your Mac restarted because of a problem" screen.

I just dropped $4800 on this thing. Inexcusable...

As a few recently mention Apple TB3->TB2 adapter as the probable cause, my situation of kernel panic was also 2018 MBP was connected to the adapter destined to another MBP (2015). Though, I believe it was not during an active transfer. Rather it was in the middle of sleep mode as most users of MBP 2018 experienced.

And MBP 2018 also seems to suffer the panic when only the power source is connected. So the symptoms found in here could be different from MBP 2018's. That said, it seems getting worse - multiple various situations bring Macs down!

Let me link my post in another thread. Also will link this post to that thread for cross referencing each other.

Re: BridgeOS Crashes Happening on 2018 MacBook Pro with TouchBar

Did you see your panic log? It's located under /Library/Logs/DiagnosticReports/ProxiedDevice-Bridge/ (or one step below "Retired") directory. Filename is panic-full-*.ips

Most MBP 2018 users get this type of panic:

{"caused_by":"macos","macos_system_state":"running","bug_type":"210","os_version ":"Bridge OS 2.4.1 (15P6703)","timestamp":...

Things like environmental setting, KEXTs, and TB peripherals may exacerbate the issue but I guarantee that in the end there’s a platform (MacOS + Mac) issue.

I got mine in December and it KP’d running in safe mode while doing nothing with no peripherals attached in a room at no more than 19C. So did it’s two replacements.

My advice to anyone experiencing this issue is to sit and wait for Apple to fix it but I’m not going to waste anymore of my time trying to troubleshoot it, already did that three times and we’re still here.

I ran Titanium Maintenance on my Mac: perhaps it helped somewhat in reducing the issue. Try it at your own risk: in the worst case it will do nothing, but I suppose it won't damage any data on your Mac either (perform a backup first, just in case).

https://www.titanium-software.fr/en/maintenance.html

I turned Power Nap off. Since I've run the diagnostics on my iMac Pro I am no longer experiencing the kernel panics.

Well, turned off the T2 security chip two days ago and haven't had a kernel panic since ... just sayin'.

Well that seems to be a new one! Have you run First Aid in dusk utilities and see if you get any errors. If you do you might end up needing to remove and reinstall macOS.

Call support please! The only way this mess can get sorted out is by providing info to Apple.

I have the exact same issue. I called AppleCare and the told me to bring the iMacPro back for a replacement machine. I did that and it did not solve the problem. The new machine had the exact same kernel panic crashes. Then they told me to erase the machine and reinstall from clean copy of OS. They told me NOT to use my time machine backup of my old machine and to reload each item and all software manually from scratch. I had no idea how long this would take. My first mac was 1985 512K so I have been collecting stuff for a very long time. No worries, I did not put any of the system 9 stuff on my new macs for many years now.

I invested 3 or 4 hours in loading things on the new clean system and then went home for the night. Came in on Saturday to see how the new system is doing and found it had crashed overnight. Good news is that I no longer need to keep avoiding migration from my old system and get all my stuff back in one easy restore. Bad news is that I still don't know what the issue is. AppleCare tech does not want to look at my crash logs. That seems crazy as I would think Apple would be all over this. I am going to try turning off the power nap and some of the other ideas listed in this fourm. If that does not work, I will be returning the iMac Pro for refund. I did not NEED to upgrade to this unit, I did it to avoid potential issues with my aging 2011 iMac 27". Turned out to be a big mistake.

Does anyone have any updates on what did work to solve this problem?

I've had mine replaced twice the problem persists with absolutely nothing attached, so far replacing them just cost me a bunch of re-installs and recovers. Run diagnostic to satisfy yourself it's not hardware and beyond that I'm just waiting and hoping for Apple to release some kind of software fix.

Great! Supports my earlier comments but you took it much further!

Now when you run First Aid on your active SSD, do you get these errors in each snapshot?

warning: crypto_val: object (oid 0x4): invalid state.major_version (0)

warning: crypto_val: object (oid 0x4): invalid state.key_os_version (0x0)

warning: crypto_val: object (oid 0x4): invalid state.key_revision (0