(In reply to L.S.S. from comment #152)
> UPDATE: I just got another freeze on 5.3.6 kernel. The same
> GCVM_L2_PROTECTION_FAULT error followed by a ring sdma0 timeout.
> 
> So it seems AMD_DEBUG="nodma nongg" doesn't really work for me.

Can you at least provide the dmesg log so we can determine what type of hang
you're having and directing you to the right bugtracker, since there are
multiple types. This also varies greatly from one desktop environment to other,
wayland or not etc. This topic is mostly concerning the SDMA type hangs that
happen at random, and AMD_DEBUG=nodma seems to take care of it for almost
anyone, I don't think using nongg is neccessary since until now it's only been
proven to take care of 1 specific hang happening in Citra emulator, which is
also ring-gfx type so it's a driver bug, probably not kernel driver related.