"iMac Pro" kernel crash

My iMacPro still cashed when disabling sleep and security options. I believe that these options are there to enhance the utility of the device and they work well on my late 2015 MacBook Pro running OS10.13.4. Apple released iMac Pro too early without proper testing and is too slow to respond to the calamity.

After over a month of sheer frustration and several sessions with Apple Support senior advisors I returned the computer for the full refund. In meantime I'll revert using my MacBook Pro as the main computer. I really do not want to go to the dark side at this stage and would like to own fully functional iMac Pro (or highly anticipated new MacPro). I'll reconsider when and if the issues are sorted out.

One more brand new iMac Pro with this problem. Also have the crypto_val problem, slow login screen problem, single drive shared by 4 volumes weirdness. So far no missing files though. Called AppleCare and they basically just said to keep watching the forums. Seems very clear it's a T2 chip integration problem. We're the beta testers as this particular hybrid setup has not been attempted before. Really hoping this is not a recall situation...

I tell my machine never to sleep or go to screen saver since it seemed this was issue for folks. My iMacPro still goes to screen saver and all my programs were closed. I have never had a crash while I am on the machine actively working. I am still anxiously waiting for others to get their diagnosis form the Apple engineers to see if they also say this is a hardware issue. The update to 10.13.5 did not stop my crashes.

MC

Thanks Andrew. Initially I was getting the issue from day one with app nap, unlock with apple watch and all the energy saving options turned on. After disabling this functionality, it has gotten better and has only happened once or twice while sitting idle. HOWEVER, I am now running into the exact same crash when I launch a certain application- FL Studio. For anyone who's not heard of it, its a music app. The crash happens as it is trying to initialize the audio hardware which is connected via thunderbolt. I have a UAD apollo 8, and a UAD satellite quad dsp daisy chained to that. I think there is something to daisy chaining hardware. The odd thing is that FL Studio is the only application that does this. I also have Reason 10, Cubase 9, Logic Pro X and Korg Gadget. I would blame imageline(the vendor for FL Studio) but the crash is identical to the ones reported here. So they have developed a recipe to recreate it. haha

For me it crashes while the iMac is sleeping. I have peripherals connected to all 8 usb ports (and its still not enough 🙂) and while I export 4K video with Final Cut Pro. If i export the same video in Full HD its not an issue. As soon as i set it to 4K, around the 10%-20% mark of the export process it restarts with a kernel panic.

This looks to me like a combination between the T2 chip (while sleeping) and the video card (while exporting video). If this is true, this is a huge issue. Apple will not change a **** thing unless a class action suit is filed. Just like with the butterfly keyboard. So ladies and gentlemen, I suggest you ask for a refund. If this issue is not fixed in the next 2 updates I'm asking for a refund and this is going to be my last mac. Im building a PC.

I have the same problem. Apple tech has replaced Motherboard, SSD, and power supply. Still problems.

I thought it was a Thunderbolt adapter and external drive issue but it happens without any Thunderbolt device attached. It seems to happen when I use Compressor or Final Cut Pro X. Which tells me the graphics chip might be screwed up.

I did everything that this forum said to do, disable FileVault, AppNap, etc. - Still crashes.

I even booted into safe mode. Still crashes when using Compressor.

I’m running a Vega 64. Most of the time I notice the panic is when I’m running Compressor. My gut says it’s the Vega. I thought it was thunderbolt related but the problem exists without any Thunderbolt drives attached.

Mine is a Vega 56. It's also seemingly not related to sleep, because I've had my iMac Pro set to "prevent computer from sleeping automatically when the display is off".

It seems as if it frequently crashes or freezes when the display turns off, so I set the displays to never turn off... then I had a run of several days with no spontaneous reboots or freezes, but then it happened again several times so that wasn't a solution either.

It often reboots while I'm working on something, and often when I come back to the computer after being away for a while I'll find that it rebooted in my absence.

My latest case was created on May 22 -- and it's now been weeks since I've even been able to get a response to my inquiries. I continue to believe that this is related to the T2 chipset, but nevertheless, it is clearly a large(r)-scale issue. Considering the premium price tag that we've all paid for this hardware, I would expect better assistance and formal recognition of the issue. If it is as systemic as it appears, I believe that we are all entitled to know. For the record: The issue continues to (randomly) plague my device, and in response to more recent messages, doesn't appear to have any direct evidence to the graphics card; and for whatever reason, the engineers were last interested in only collecting "network" logs from my device. This issue continues to occur whether my computer is at the login screen, sleeping (w/ no video), in the middle of a Logic session, or playing a taxing game. Apple Support, please respond.

My case worker simply stopped communicating with me, and forced me to open (yet) another case. After providing an aggregate of crash data/sysdiagnose logs, screenshots, etc. my new case worker admitted that they have a growing number of these cases, and that engineering doesn't appear to have a solution/response. Last evening, I collected & uploaded these items again. I was told to expect a response on Wednesday/Thursday. ...increasingly frustrated.

My current Apple case worker called yesterday afternoon, and said that the engineers said the issue was caused by the iMobie PhoneClean app, which is removed (as well as all artifacts). The workstation locked up this morning, as I had been expecting. I do not believe that this issue is getting the appropriate attention. This has gone well beyond ridiculous. I informed the case worker, and I’m going to continue to press.

Some issues have been resolved. Thunderbolt was a big issue. Other issues are not resolved, like crashes during a full-out render and the whole sleep issue. There's a big cost in wear and tear to my external Thunderbolt drives because they can't be put to sleep... basically the only way my device doesn't crash is by disabling all sleep options and having it run 24x7, or constantly powering down. LOTS to do here yet and I expect it eventually...

iMac Pro 10 cores with 64Gb RAM.

Multiple KP occurred when unzipping simultaneously several 1Gb sound files on an external Thunderbolt 2 bay connected to the iMac via a T3-to-T2 adapter, and using the built-in Compression Utility (with Stuffit Expander things went a little better). I guess the issue is somewhere in the T3-to-T2 bridge, but I'm only a final user, not a technician... So I would like a fix without having to bring the iMac to the "nearest" Genius Bar (12,2 km from here). :-/

Hello my crashing iMac Pro community. I just received an email from apple support that kinda ****** me off.

See Below:

[Edited by Host]

Can EVERYONE that having trouble with their iMac Pro please list succinctly what Apple has done and more importantly has Apple engineering come up with any solutions that have worked.

My Apple support in nutshell: Numerous calls and emails; CaptureData program ruined 3 times with files sent to Apple; first Apple engineering response, no help; second - need new motherboard; then out of town support came to house 3 times to install a new motherboard x2 and never could boot up machine; new replacement iMac Pro arrives; crashes more than the first one; very clean install - all Apple software except MS Office and Adobe PDF reader. Still crashing with kernel panics. Article Digital Trends magazine (https://www.digitaltrends.com/computing/apple-t2-chip-may-be-causing-imac-pro-ma cbook-problems/) documents everyone problem on this support thread. Some folks down to clean install in safe mode still have crashes without any peripherals or non-out-of-the-box software.