Nouveau doesn't work with primus

[ArchangeGabriel]

Asus U43Jc, nVidia GeForce 310m, Ubuntu 13.04 64bit

nvidia working with both VirtualGL and primus, nouveau only with VirtualGL. Some debug informations:
primusrun glxinfo:

glxinfo: ../../../../../../src/mesa/drivers/dri/common/xmlconfig.c:130: findOption: Assertion `i < size' failed.

GDB backtrace of above command with libgl1-mesa-dri-dbg:

#0  0x00007ffff74be037 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff74c1698 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff74b6e03 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff74b6eb2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff372a59f in findOption (name=0x7ffff3816b53 "pp_noblue", cache=0x684b50, cache=0x684b50)
    at ../../../../../../src/mesa/drivers/dri/common/xmlconfig.c:130
#5  0x00007ffff372c36a in driQueryOptioni (cache=cache@entry=0x684b50, name=<optimized out>)
    at ../../../../../../src/mesa/drivers/dri/common/xmlconfig.c:1028
#6  0x00007ffff372c647 in dri_pp_query (ctx=0x684b30) at dri_context.c:48
#7  dri_create_context (api=<optimized out>, visual=0x680460, cPriv=<optimized out>, major_version=<optimized out>, 
    minor_version=<optimized out>, flags=<optimized out>, error=0x7fffffffdc4c, sharedContextPrivate=0x0) at dri_context.c:153
#8  0x00007ffff3729877 in dri2CreateContextAttribs (screen=0x65c9b0, api=<optimized out>, config=0x680460, shared=<optimized out>, 
    num_attribs=num_attribs@entry=0, attribs=attribs@entry=0x0, error=error@entry=0x7fffffffdc4c, data=0x635950)
    at ../../../../../../src/mesa/drivers/dri/common/dri_util.c:288
#9  0x00007ffff37299dd in dri2CreateNewContextForAPI (screen=<optimized out>, api=<optimized out>, config=<optimized out>, 
    shared=<optimized out>, data=<optimized out>) at ../../../../../../src/mesa/drivers/dri/common/dri_util.c:306
#10 0x00007ffff5bd5bd7 in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#11 0x00007ffff5bae8b7 in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#12 0x00007ffff5baeb3a in glXCreateNewContext () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#13 0x00007ffff7ba0846 in glXCreateNewContext (dpy=0x6262d0, config=0x688f40, renderType=32788, shareList=0x0, direct=1) at libglfork.cpp:488
#14 0x0000000000403c6f in ?? ()
#15 0x00000000004016bf in ?? ()
#16 0x00007ffff74a8ea5 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#17 0x00000000004029f9 in ?? ()

LIBGL_DEBUG=verbose:

name of display: :0
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/i965_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/archangegabriel/.drirc: No such file or directory.
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/nouveau_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/archangegabriel/.drirc: No such file or directory.
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/archangegabriel/.drirc: No such file or directory.
glxinfo: ../../../../../../src/mesa/drivers/dri/common/xmlconfig.c:130: findOption: Assertion `i < size' failed.

[amonakov]

As we discussed previously on IRC, this does not look like a bug in primus, but rather like a failure when two different DRI drivers are loaded simultaneously. I previously told that other people are not seeing this because Ubuntu enables assertions, but having looked at their debian/ files, I'd say it probably due to their patches. See my brief discussion with Maarten Lankhorst here.

[ArchangeGabriel]

Woo, brief indeed. Size reduction? Really? Since they're not shipping on a CD anymore, that's really weird. And you don't break a program because you want to reduce it size... Sorry for that, I'm closing this issue then, and will definitively try to find the time to learn a little more linux and switch to a linux distro (one that will use Wayland, not Mir...).

[amonakov]

To be fair, I'm entirely sympathetic to the goal of removing avoidable bloat.

[ArchangeGabriel]

Avoidable bloats should not exist in the first place, so that they are upstream problems. But the problem here is a feature or a bloat?