[Nouveau] [Bug 70390] [NV84] Repeated system crashes under graphics load, E[PFIFO] DMA_PUSHER and lots of E[PGRAPH]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70390

--- Comment #15 from Niels <nem42 at get2net.dk> ---
I'm seeing this bug a lot. I think it's the same bug, but it rarely shows in
any of my logs, because the machine locks. It can happen with web browsing,
movie watching or just about anything. Since I'm getting these crashes at least
once a day on my main computer, I'm very much interested in solving the
problem.

What I sometimes get are (the numbers vary, except for the last one):

kernel: nouveau E[   PFIFO][0000:01:00.0] DMA_PUSHER - ch 2 [X[1232]] get
0x002002b03c put 0x002002cca0 ib_get 0x0000015d ib_put 0x00000162 state
0x80004861 (err: INVALID_CMD) push 0x00406040

I'm seeing this on two different machines.

Machine 1: Gentoo with "NVIDIA NV96"
------------------------------------
sys-kernel/vanilla-sources-3.12.4
x11-base/xorg-server-1.14.3-r2
x11-drivers/xf86-video-nouveau-1.0.10
x11-libs/libdrm-2.4.50
media-libs/mesa-10.0.1

Machine 2: Fedora with "NVIDIA NV84"
------------------------------------
kernel: 3.11.10-200.fc19.x86_64
xorg-x11-server-Xorg: 1.14.4.3.fc19
xorg-x11-drv-nouveau: 1.0.9.1.fc19
libdrm: 2.4.49.2.fc19
mesa-libGL: 9.2.4.1.20131128.fc19


I can't do any major debugging, but if there's anything simple I can do to
help, please let me know.

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