> > 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? > > Only happened with kexec thus far. Cold boot seems to be fine. Sounds like the GPU is writing to physical memory from the old mappings. This can happen to other devices if they aren't completely disabled - which may not happen since the kexec case probably avoids some of the hardware resets that occurr diring a normal reboot. I remember an ethernet chip writing into its rx ring/buffer area following a reboot (and reinstall!) when connected to a quiet lan. David _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
