Re: kern/56847: nouveau autoconfiguration error: fifo: fault 01 [WRITE] -> DROPPED_MMU_FAULT; freezed console output on boot on a GTX 1060

[Onno van der Linden <o.vd.linden%quicknet.nl@localhost>]

The following reply was made to PR kern/56847; it has been noted by GNATS.

From: Onno van der Linden <o.vd.linden%quicknet.nl@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/56847: nouveau autoconfiguration error: fifo: fault 01
  [WRITE] -> DROPPED_MMU_FAULT; freezed console output on boot on a GTX 1060
Date: Fri, 11 Nov 2022 20:16:25 +0100

 Soren Jacobsen wrote:
 > I also hit this problem.  For me, it only occurs if the system is booted
 > via EFI.  A good ol' fashioned BIOS boot gets me a system with usable
 > nouveau.  Should be easy enough to test with a USB stick.
 
 I can confirm that booting with a 9.3 amd64 BIOS install image
 fixes the same freezed console / connectable machine problem
 I had with my nvidia GT710. Booting the same image on the same machine
 with an R7 240 instead of the GT710 got rid of the ring test
 failed message I saw with an EFI boot as mentioned in kern/57079.
 
 That EFI boot is doing something wrong during initialization.
 
 Noticed this difference in dmesg for BIOS / EFI boots with the R7 240:
 Zone  kernel: Available graphics memory: 9007199253819168 KiB with EFI
 Zone  kernel: Available graphics memory: 5509780 kiB with BIOS
 
 See also kern/53126 
 
 Onno