re: kern/56729: amdgpu X driver nearly (but not quite) working

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR xsrc/56729; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: xsrc-manager%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost, martin%NetBSD.org@localhost
Subject: re: kern/56729: amdgpu X driver nearly (but not quite) working
Date: Thu, 20 Jul 2023 17:52:09 +1000

 >  right now i have a 5450 installed, but i'll put the RX550
 >  back in and see what the latest status is.
 
 with the RX550 i am now able to run 12x glxgears for about an hour
 before the X server crashes, and mpv is capable of going into and
 out of fullscreen mode without corrupting anything else.
 
 the crash is inside glamor module, possibly some map/unmap race
 as the faulting address always seems to be accessible in GDB.
 
 while not great, this is far more usable than any prior so far.
 
 unfortunately, i get crashes on a ryzen pro 3700U CPU's amdgpu.
 some command times out, and it either crashes with a LOCKDEBUG
 error (i have a patch for this part), or then with cnopen panic
 no console as no framebuffer/console is attached now.
 
 i'll file a separate PR about the 3700U issue, as it is
 unrelated to it sort-of working.
 
 
 .mrg.