>> > > > > FIX idr_layer_cache: Marking all objects used >> > > > >> > > > Yesterday I couldn't reproduce the issue at all. But today I've hit >> > > > exactly the same spot again. (CCing the drm list) If I had to guess it looks like 0 is getting written back to some random page by the GPU maybe, it could be that the GPU is in some half setup state at boot or on a reboot does it happen from a cold boot or just warm boot or kexec? Jerome, might be worth checking the ordering for when bus master gets enabled or if we turn off the writeback producers before writeback is enabled. Dave. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>