[Nouveau] [Bug 70135] [nv34 PowerMac G5] gnome-shell random crashes and rendering issues

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70135

--- Comment #5 from Ilia Mirkin <imirkin at alum.mit.edu> ---
I just posted a pair of patches that disable ARB_framebuffer_object on
nv30/nv40 cards. I believe that is the cause of this error:

[  254.402384] nouveau E[  PGRAPH][0000:f0:10.0]  ERROR nsource: DATA_ERROR
nstatus: BAD_ARGUMENT
[  254.402411] nouveau E[  PGRAPH][0000:f0:10.0] ch 3 [gnome-shell[2575]] subc
7 class 0x0697 mthd 0x0208 data 0x04060348

These should be "harmless" though (in that they'll just cause rendering to
fail, not apps to crash). You can grab the patches at

http://lists.freedesktop.org/archives/nouveau/2013-October/014671.html
http://lists.freedesktop.org/archives/nouveau/2013-October/014672.html

They should apply on top of mesa-git. Also, you didn't mention what version of
mesa you're using, but there's a nv30/40-specific bug in the 9.2.0 release
which is known to be triggered by gnome-shell. It is already fixed in mesa-git
on both master and the 9.2 branches.

However this:

[  258.941658] gnome-shell[2575]: unhandled signal 11 at 00000000 nip 0be2f384
lr 0be2f2d8 code 30001

appears to be a bug in gnome-shell (or one of its libraries... so I guess it's
possible it's in mesa/nouveau as well). Perhaps run it in gdb and look at the
backtrace? Or maybe it indicates some trouble in its stdout/stderr, not sure
where that goes in your setup.

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