re: kern/54317: System hang during boot

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

The following reply was made to PR kern/54317; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost, Thomas Klausner <wiz%NetBSD.org@localhost>
Subject: re: kern/54317: System hang during boot
Date: Sun, 23 Jun 2019 22:34:38 +1000

 >  I remembered that the graphics card was newer than 2010 and there's thi=
 s warning:
 >  =
 
 >  > [     8.386333] radeon0: autoconfiguration error: error: radeon_vce: =
 Can't load firmware "radeon/TAHITI_vce.bin"
 
 [     7.565961] kern info: [drm] initializing kernel modesetting (PITCAIRN=
  0x1002:0x6818 0x1682:0x3252).
 
 ah, "southern islands".
 
 i have a card in this generation and we're out of luck until we
 get a drm update.  the existing code only supports them in the
 radeon driver, but much of the rest is broken in radeon vs
 amdgpu driver -- Mesa complains (tries amdgpu style fail), and
 i don't recall that Xvideo even works.
 
 the newer drm code supports this card in amdgpu and i suspect
 then it will be fine.  until then, this card will not work well.
 (if our amdgpu code worked, newer tech cards might work, but =
 
 this 1st generation GCN was poorly supported in our drm.)
 
 >  So I tried disableing all radeon* and radeondrmkmsfb* and radeonfb*
 > with userconf, but that didn't help.
 
 what happened?  i assume vga attached instead, and whatever the
 problem is remains, ie, probably not the gpu?
 
 i would just keep disabling drivers -- there are a *lot* that
 attach something -- and see if anything helps.
 
 
 .mrg.