Re: -stable from today dumps core with drm-510-kmod and some graphical clients

From: Shane Ambler <FreeBSD_at_ShaneWare.Biz>
Date: Sun, 26 Mar 2023 07:47:28 UTC
On 26/3/23 01:37, Mathias Picker wrote:
> 
> Starting sddm works fine, starting my normal session crashes or freezes
> FreeBSD.
> 
> I can find no error messages after a reboot.
> 
> I found out, that I can start xterm or emacs (exwm) without problems,
> xrandr works with external screen, but once I start anything more
> demanding (I guess demanding of the GPU) everything freezes or FreeBSD
> even reboots.
> 
> “Demanding” means even simple things like qterminal. I tried firefox and
> blender and then I had it with the reboots and didn’t try anything else.
> xedit works fine :)
> 
> I have nothing in the logs, I have no idea where to look or how to debug
> this.
> 
> Any ideas, tipps, help greatly apreciated.


FreeBSD Developers Handbook Chapter 10: Kernel Debugging

https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/

Running stable, kernel dumps may already be enabled, look in /var/crash

By enabling a kernel dump when it panics (dumpdev="AUTO" in rc.conf) the
kernel core is saved to swap space, then on reboot gets copied to
dumpdir (/var/crash) where you can then use kgdb (from devel/gdb) to get
a stack trace to find where the panic happened.


-- 
FreeBSD - the place to B...Software Developing

Shane Ambler