Bug#696554: System freezes and lockups

[Mar Mel <marmel6942@yahoo.com>]

Okay, unfortunately it hasn't taken long to see a problem from nouveaux. While tailing syslog, I just noticed these messages cropping up from a few moments ago:

Dec 25 21:14:22 humonculux kernel: [ 3718.821137] [drm] nouveau 0000:01:00.0: PGRAPH - TRAP_TPDMA - TP1: Unhandled ustatus 0x00000008
Dec 25 21:14:22 humonculux kernel: [ 3718.821147] [drm] nouveau 0000:01:00.0: PGRAPH - TRAP_TPDMA - TP2: Unhandled ustatus 0x00000008
Dec 25 21:14:22 humonculux kernel: [ 3718.821153] [drm] nouveau 0000:01:00.0: PGRAPH - TRAP
Dec 25 21:14:22 humonculux kernel: [ 3718.821155] [drm] nouveau 0000:01:00.0: PGRAPH - ch 2 (0x0001256000) subc 7 class 0x8397 mthd 0x15e0 data 0x00000000
Dec 25 21:14:22 humonculux kernel: [ 3718.821164] [drm] nouveau 0000:01:00.0: VM: trapped write at 0x004d5d1c00 on ch 2 [0x00001256] PGRAPH/PROP/RT0 reason: PAGE_NOT_PRESENT


System still hasn't hung or crashed...yet.

Any idea what these messages could indicate?




----- Original Message -----
From: Steven Chamberlain <steven@pyro.eu.org>
To: Mar Mel <marmel6942@yahoo.com>; 696554@bugs.debian.org
Cc: 
Sent: Tuesday, December 25, 2012 8:13 PM
Subject: Re: Bug#696554: System freezes and lockups

Hello,

Just an idea of mine, but if this issue only happens after logging in
(to gnome-shell?), perhaps you could try installing+logging into the
xfce4-desktop?  Just to see if that still triggers the nouveau bug.

And then if xfce4 is stable, you could perhaps try `mplayer -vo xv
somefile.avi` to see if that will trigger the problem instead.

Thanks!
Regards,
-- 
Steven Chamberlain
steven@pyro.eu.org