maintainer-feedback requested: [Bug 264206] graphics/drm-fbsd13-kmod: System panic setting sysctl hw.dri.0.vblank=1 - page fault (drm_vblank_info -> sysctl_root_handler_locked)

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 25 May 2022 00:37:46 UTC 
Kubilay Kocak <koobs@FreeBSD.org> has asked freebsd-x11 (Nobody)
<x11@FreeBSD.org> for maintainer-feedback:
Bug 264206: graphics/drm-fbsd13-kmod: System panic setting sysctl
hw.dri.0.vblank=1 - page fault (drm_vblank_info -> sysctl_root_handler_locked)
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264206



--- Comment #2 from Kubilay Kocak <koobs@FreeBSD.org> ---
@Reporter Thank you for your report. Could you please include additional
information:

- exact uname -a output
- /etc/sysctl.conf contents (as an attachment)
- pkg info drm-fbsd13-kmod (output as an attachment)
- Include screenshot mentioned in comment 1 as an attachment

If you're able to configure a debug kernel and kernel core dumps [1] to obtain
a detailed backtrace, that would be great

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