I've managed to update i915 drm-kmod to a recent version that is supposed to work for 12th gen Alder Lake CPU/GPUs:
github.com
While it finally all compiles fine, I'm stuck in the
Obviously, this is not very elegant. I've looked into the different resources for kernel debugging.
Also, ddb does not have any debug symbols, as far as I understand. How do I even specify an address of a function, etc. Do I need to look into the assembler code of the module(s)?
Can I breakpoint the kernel loading methods somehow?
If you can recommend a website, video, book, etc. that goes into kernel debugging with a bit more practice/examples, I'd highly appreciate it.
GitHub - christian-moerz/drm-kmod: Alder Lake drm-kmod / i915
Alder Lake drm-kmod / i915. Contribute to christian-moerz/drm-kmod development by creating an account on GitHub.
github.com
While it finally all compiles fine, I'm stuck in the
kldload process and getting close to pinpointing the issue by doing a bunch of printk's.Obviously, this is not very elegant. I've looked into the different resources for kernel debugging.
ddb seems really nice - if you know how to work it. Unfortunately, I seem to missing a few pieces. How am I supposed to set breakpoints before loading a module, for example?Also, ddb does not have any debug symbols, as far as I understand. How do I even specify an address of a function, etc. Do I need to look into the assembler code of the module(s)?
Can I breakpoint the kernel loading methods somehow?
If you can recommend a website, video, book, etc. that goes into kernel debugging with a bit more practice/examples, I'd highly appreciate it.