New in OS X: Get MacRumors Push Notifications on your Mac

Resubscribe Now Close

Apple Looking Into Limited Reports of T2-Related Kernel Panics on New MacBook Pro and iMac Pro

As highlighted by Digital Trends and VentureBeat, a small number of users have turned to the Apple Support Communities to report incidents of kernel panicking on the new MacBook Pro, possibly linked to Apple's T2 chip. The issue has also been highlighted by some of our own readers in the MacRumors forums.

Image Credit: iFixit

Many of the crash logs shared by users mention bridgeOS, which is the device firmware on the logic board that controls many functions, including the T2, fueling speculation that the chip is the root cause of the problem.

Similar reports of kernel panicking began last year with the iMac Pro, which is also equipped with the T2, so this does seem to be a potential issue with the chip, or the bridgeOS firmware that manages it, rather than an entirely new MacBook Pro controversy like the since-fixed excessive throttling.

Apple's custom T2 chip integrates several previously separate components, including the system management controller, image signal processor, audio controller, and SSD controller. It also features a Secure Enclave coprocessor for secure boot, encrypted storage, and authenticating Touch ID.

Apple support representatives appear to have provided a wide variety of solutions, ranging from disabling FileVault to turning off Power Nap, but none of the advice customers received suggests there is a permanent fix.

MacRumors reached out to Apple, which told us that this is not a widespread issue, nor one that it has received any direct reports about. Nevertheless, Apple said it has relevant teams looking into the matter and, unsurprisingly, is always aiming to improve the stability and reliability of its products.

In general, Apple recommends that customers update their MacBook Pros with the macOS High Sierra Supplemental Update released earlier this week, which contains reliability and stability improvements, including a bug fix that addresses excessive thermal throttling with the latest MacBook Pro models.

According to at least one user, the Supplemental Update has not resolved the kernel panicking. Hopefully, whatever is causing the issue can be identified and promptly fixed in a future software update.

Tag: T2 chip


Top Rated Comments

(View all)

21 weeks ago
I thought T2 was the best one. It took everything I loved about the Terminator and really improved the special effects.
Rating: 62 Votes
21 weeks ago
One issue after another after another...
Rating: 37 Votes
21 weeks ago
Apple is needlessly complicating things with these custom specialized chips. What's wrong with separate, reliable SMC's, SSD controllers, audio controllers?

They cost pennies on the dollar, and have never caused issues in the past.
Rating: 23 Votes
21 weeks ago
I miss the "it just works" days.
Rating: 14 Votes
21 weeks ago
this "gimmick" is why I do not want this version of the MBP.
Rating: 14 Votes
21 weeks ago
Unbelievable. Just read this and then literally my 15" 2.6 had a kernel panic and restarted.
Rating: 13 Votes
21 weeks ago

Developing things like the T2 and TouchBar is Apple devoting resources to the Mac hardware line.


You call it “devoting resources,” I call it misallocating them.

Apple could just get rid of the entire Mac Hardware Group and hire Intel to design a basic reference system and then have Pegatron shove it in the same chassis they use for Dells and HPs. They'd save a mint in R&D and the already high margins would be even higher. But then would that still be a "Mac"?


At this point that sounds like a fantastic idea.
Rating: 12 Votes
21 weeks ago

Good lord, the iMac pro has been out for months and we’ve seen few if any posts on kernel panics from it. You constant complainers about quality need to get a grip on what is clearly a *limited* issue.

We’ve got over 100 pages across three threads on the throttle issue with many posters actually owning the machines. Where’s the torrent of posts about kernel panics? Oh, they don’t exist? Jeeze maybe that should lead the rational to realize that THIS issue is clearly not widespread.

Good grief.

Their are tons of posts on the iMac Pro Apple discussion forums. This is not a small issue and now it’s moved on to the next T2 machine, the 2018 MBP.
Rating: 12 Votes
21 weeks ago
It turns out that when you gut the quality organizations of the people who care and fill them with a bunch of ex AppleCare "Geniuses" everything goes down the tubes.
Rating: 10 Votes
21 weeks ago

Wow. Just Wow. I was a few clicks away from buying a souped up 2018 15" MBP, along with the LG 5K screen. It would have cost me a boatload. Now with this baloney I'm not parting with my hard-earned cash so fast. In fact, it's making me wonder if I want to invest in Apple hardware any more. These machines are not cheap, they are expected to just work, and if I have to deal with constant kernel panics on an MBP, this becomes a non-starter.

I really hope Apple gets their act together and fixes this soon, or there is no way I'm upgrading.

Express this sentiment directly to Apple through any and all available channels including https://www.apple.com/feedback/ it helps all of us.
Rating: 10 Votes

[ Read All Comments ]