I moved a couple of thousand media files from my HD to a sample drive when it first happened. When you copy a file that causes this kernel panic it will actually tell you what file it is just before everything freezes.
Ah ok!
In my case the third TimeMachine backup was interrupted twice by crashes and the fourth backup four to five times. So it is probably not related to a specific file in my case. I interrupted the first and second backup, because I wanted a pristine backup, but gave up. Right now my main machine is without backup: really scary!
I had zero problems with migration assistant, so data-in is fine. I used Thunderbolt 2.
The machine is stable. It crashes only on excessive data-out. Quite difficult to find. Maybe at Apple they are using 256GB SSD equipped machines and did not encounter this problem. You would also have to back it up in order to discover this bug.
It is definitely IO related. Probably firmware, but everything is possible. CATERR stands for catastrophic error. CATERR could come from system board, CPU, chipset, bios, bmc, virtualization environment, drivers, os, storage, IO, network and graphics so actually from almost everything, but no MCA code is specified in the Kernel crash log. This makes it quite difficult to analyze if you are not a system engineer from either Apple or Intel. CPU, memory or I/O timeout, .... bufferoverrun .... probably not related to TimeMachine per se, but something lower. We should cross our fingers for firmware, OS.
Thunderbolt and USBc go through the Thunderbolt controller and there is one per each side each one connected through 4 PCIe lanes to the PCH which is connected to the CPU.
Difficult to say. I don't think it is a bad batch of machines. It is all of them, either hardware or software. The 2011 generation had too much thermal paste applied and therefore did not dissipate heat well. But at the end the machines just produced too much heat and the thermal architecture was not able to cope with it.
Please send all your crash logs to Apple, call Apple, open a bug report, etc.
Just one thing I am curious of. Did everyone here migrate his machine? Or did anyone setup a new machine and also has this problem?
[doublepost=1480863539][/doublepost]Could also not be Apple related, could be a general problem of Thunderbolt3 & USBc. Our friends at Dell have also problems with USBc stability:
"Digging deeper, we found references to similar behavior online within Dell’s support forums (
http://en.community.dell.com/support-forums/laptop/f/3518/t/19677047?pi41097=1) for some users of Dell’s Thunderbolt 3 and USB-C docking stations. While the thread is quite long, it does reflect similar unstable dock behavior while also indicating the common theme of the whole USB bus resetting or disconnecting and causing problems.
As official Dell comments on the thread have dropped off, customers have tried their own pragmatic approach in finding work-arounds and some (but not all) have found the behavior diminished if the laptop was run with the lid open. Others found that putting the system in ‘Airplane Mode’ to disable the internal Wi-Fi and Bluetooth adapter helped. And there’s even multiple users who report working with Dell engineering on the issue, stating that Dell is aware of the problem on some systems and working on a fix in the form of a BIOS update."
"So where does this leave us? While we have many test systems in our lab, we do not have an example of every model Dell system that has Thunderbolt 3 and USB-C. In our internal testing with the Dell XPS 13 9350 and Dell XPS 9550 (non-hybrid) both of our USB-C docks work well. We are hopeful based on Dell forum comments that updated system BIOS files or Thunderbolt 3 NVM firmware will be released to help with the behavior. Though we don’t know if in some cases the solution will go beyond BIOS/firmware updates and instead is indicative of a hardware problem with the host system itself.
Interestingly as we were putting the finishing touches on this post before publishing, Dell has posted a BIOS update for their Thunderbolt 3/USB-C Precision 7510 and 7710 models
http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=7HGW6 that indicate various Thunderbolt 3 and USB-C fixes. Our hope is that these changes will filter down through their other models in the near future."
from
plugable.com