Display problems using nouveau - kern/58053

[Paul Goyette <paul%whooppee.com@localhost>]

Hmmm, it seems that I'm the only one with this problem...  My system
seems to get less and less stable while I try to track HEAD.  I'm out
of ideas and have nowhere enough clue to start debugging kernel display
code.

There must be something unique in my set-up that no-one else seems to
have, at least not all at the same time.

Here are a few of the parameters which might not be used by (large
numbers of) others;  some of these are hardwware, some software...

1. xdm started via /etc/rc.d
2. using fvwm2 from package source
3. fairly large display,  2560x1440
4. video card is a GeForce GT 730 (but I've tried several others,
   without improvement)

	nouveau0 at pci1 dev 0 function 0: vendor 10de product 1287 (rev. 0xa1)
	...
	NVIDIA GK208B (b06070b1)
	bios: version 80.28.b8.00.13
	interrupting at msi14 vec 0 (nouveau0)
	nouveau0: fb: 2048 MiB GDDR5
	...

In addition to the symptoms listed in kern/58053 I've seen ...  (all
of these seem to happen randomly, and repeating the same activities
rarely produces the same error/behavior)

* console messages from kevent (something about attempting to
  register an event that is inappropriate for the specified file)
* failures to cleanly shut down xdm during system shutdown (usually
  it displays "failed to idle channel <n>" messages
* once I just booted and left it with xdm's login dialog displayed,
  and the system crashed spontaneously (no user activity) after a
  couple hours
* firefox might spontaneously crash without any clues
* always get lots of ``DRM: core notified timeout'' messages, and some
  occassional ``base-0: timeout'' messages
* once in a while, ``fifo: fault 01 [WRITE] at 000000000025e000 engine
  00 [GR] client 0f [GPC0/PROP_0] reason 02 [PTE] on channel 2
  [007fb82000 user]''
* Here's one I haven't noticed previously:

	nouveau0: notice: fifo: channel 2: killed
	nouveau0: warn: user: channel 2 killed!
	nouveau0: notice: fifo: runlist 0: scheduled for recovery
	nouveau0: notice: fifo: engine 0: scheduled for recovery
	nouveau0: autoconfiguration error: error: user: failed to idle channel 4 [user]

There are so many variables I can't figure out how to start to narrow
things down.  The only constant seems to be that things are getting
progressively WORSE and UNSTABLE, to the point whereI can't trust the
system to survive "production" activities (mostly, monitoring various
financial stuff).

Anyone got any ideas?


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