My pc hangs from time to time a few seconds and I get this in my journal:
kernel: [drm] GPU HANG: ecode 9:0:0x85dffffb, in plasmashell , reason: Hang on rcs0, action: reset
kernel: [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
kernel: [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
kernel: [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
kernel: [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
kernel: [drm] GPU crash dump saved to /sys/class/drm/card0/error
here is the crash dump: https://pastebin.com/bCR7bCPQ
I don't have a lot of experience with filing bug reports so if I forgot anything please let me know.