i.MX8mm kernel Lock

[okuda]

Hi NXP

I am using Yocto Kernel Version 5.4.3 on the original board.
When drawing with the QT Window application, the symptom that the kernel is locked occurs.
At this time, no debug log is output.
（Kernel panic logs such as oob and spin_lock are not output either.）

１．The information in IMX8MM_0N87W.pdf includes ERR050044. If this phenomenon occurs, will the 　　above symptoms occur?

２．Is there a patch for ERR050044?

３．When I run the QT application with the iMX8mm warmed with a dryer, the phenomenon does not 　　occur.

　　What should we investigate from the above?

Best regards,
Koji Okuda

[okuda]

IMX8MM_0N87W.pdf recognizes that MIMX8MM6CVTKZAA is the applicable product.
The image above is the one I'm using this time, but I'm not sure if it's "MIMX8MM6CVTKZAA" or "MIMX8MM6CVIKZAA".
In the image above, which is "MIMX8MM6CVTKZAA" or "MIMX8MM6CVIKZAA"?

For MIMX8MM6CVTKZAA, do I need to deal with ERR050044 errata in software processing?