[Nouveau] [Bug 111642] New: NV43 GeForce 6600 Nouveau is not stable on legacy hardware

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111642

            Bug ID: 111642
           Summary: NV43 GeForce 6600 Nouveau is not stable on legacy
                    hardware
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: not set
          Priority: not set
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: diggest at gmail.com
        QA Contact: xorg-team at lists.x.org

First of all I appreciate this community work, the driver didn't work at all
for the NV43 gpu few years ago but now it is working but not stable yet. 

I am on Ubuntu 18.04.3 LTS, tested on kernels 4.15/4.18/5.0,
xserver-xorg-video-nouveau 1:1.0.15-2, libdrm-nouveau2 2.4.97-1ubuntu1~18.04.1
Have also tested it with xserver-xorg-video-nouveau-hwe-18.04
1:1.0.16-1~18.04.1
dmesg is full of these lines:
[  199.658774] nouveau 0000:04:00.0: systemd-logind[1352]: validate: -22
[  199.658902] nouveau 0000:04:00.0: systemd-logind[1352]: fail set_domain
[  199.658905] nouveau 0000:04:00.0: systemd-logind[1352]: validating bo list
[  199.658907] nouveau 0000:04:00.0: systemd-logind[1352]: validate: -22
[  200.075155] nouveau 0000:04:00.0: systemd-logind[1352]: fail set_domain
[  200.075158] nouveau 0000:04:00.0: systemd-logind[1352]: validating bo list
[  200.075160] nouveau 0000:04:00.0: systemd-logind[1352]: validate: -22
[  200.075215] nouveau 0000:04:00.0: systemd-logind[1352]: fail set_domain
syslog is full of these lines:
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x000482fc
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x00000003
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x00104300
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x0000000a
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x14001400
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x0025a000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x01240000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: message repeated 3 times: [
nouveau: #0110x00000000]
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x000c8300
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x04000500
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x00020000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: #0110x00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: kernel rejected
pushbuf: Invalid argument
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: krec 0 pushes
1 bufs 3 relocs 4
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: buf 00000000
00000005 00000004 00000004 00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: buf 00000001
0000000b 00000002 00000002 00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: buf 00000002
0000000c 00000002 00000000 00000002
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: rel 00000000
00002d30 00000001 00000000 00044308 00000000 00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: rel 00000000
00002d34 00000001 00000001 00000000 00000000 00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: rel 00000000
00002d38 00000002 00000000 0004430c 00000000 00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: rel 00000000
00002d3c 00000002 00000001 00000000 00000000 00000000
Sep 11 01:50:33 /usr/lib/gdm3/gdm-x-session[7653]: nouveau: ch2: psh 00000000
0000002d30 0000002d48
... and there are 5 gigs of this messages in syslog

The system is working but sometimes just freeze completely. May work for hours
and then freeze. May freeze on login.

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