How to debug Linux console freeze

steve_dunnagan — Thu, 11 Jun 2020 19:09:29 GMT

I used Buildroot for the i.MX6UL EVK evaluation board, and that's working fine. I'm using Buildroot for our i.MX6UL based product, and the kernel boots and I can login, but shortly after that the console hangs.

I've tried the following:

* Set ulimits in a start-up script.

* Blink an LED. The LED stops blinking at about the same time as the console hangs.

* Check available memory; looks fine.

* Check /var/log/messages; looks fine.

* Check dmesg; nothing suspicious.

I'm hoping for suggestions on how to debug further.

Steve

Re: How to debug Linux console freeze

Bio_TICFSL — Fri, 12 Jun 2020 13:17:10 GMT

Hello Steve,

There is no way to debug the console but you add printf to see whats happens for debugging linux you need ARM DS 5 or Lauterbach, Check this link for debugging:

Linux Dynamic Debug

https://community.nxp.com/message/434582

Regards

i.MX ProcessorsのトピックRe: How to debug Linux console freeze

How to debug Linux console freeze

Re: How to debug Linux console freeze