Two further bug reports, which could be the same bug:
https://bugzilla.redhat.com/show_bug.cgi?id=2012882 -> it was closed by the reporter with the assumption that the issue disappeared on 6.0.5 because he had no longer occurrences. It also relates to drivers/gpu/drm/ttm/ttm_bo.c and looks comparable to some of my earlier logs.
https://bugzilla.redhat.com/show_bug.cgi?id=1985880 -> closed due to the end of the Fedora-34 release cycle. It is unknown if the reporter still experiences the problem. Also relating to drivers/gpu/drm/ttm/ttm_bo.c and looking comparable to mine.
