|Summary:||graphics/drm-devel-kmod: Panic when transcoding a video|
|Product:||Ports & Packages||Reporter:||Alex Levy <a13xlevy>|
|Component:||Individual Port(s)||Assignee:||freebsd-x11 (Nobody) <x11>|
|Severity:||Affects Only Me||CC:||grahamperrin, manu|
Description Alex Levy 2020-08-20 11:15:46 UTC
Created attachment 217372 [details] Backtrace of the generated crash dump Hi, I'm running 13.0-CURRENT r364031 with latest drm-devel-kmod installed as I needed support for the graphics chipset of my Celeron G5900. The kernel reliably panics when transcoding a certain video with Plex which leverages libva (hence the graphics chipset). I have an ongoing discussion about it : https://lists.freebsd.org/pipermail/freebsd-current/2020-August/076728.html The interesting part is that the panic never happen when I plug a screen on HDMI port and happens all the time when no screen plugged. The frame #17 from the backtrace refers to intel_plane_can_remap() so there might be hint in there. I dumped the content of structures from several backtrace frames that you can see in the discussion linked above. Thanks.
Comment 1 Alex Levy 2020-08-20 11:17:42 UTC
Created attachment 217373 [details] Extract of /var/log/messages when the panic happened
Comment 2 Emmanuel Vadot 2020-09-17 09:55:29 UTC
Is this still relevant ?