unity-control-center crashed with SIGSEGV in pushbuf_flush()

[gepas]

Ubuntu Trusty Tahr (development branch) 64bit

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-8.28-generic 3.13.2
Uname: Linux 3.13.0-8-generic x86_64
ApportVersion: 2.13.2-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Feb 18 22:56:54 2014
ExecutablePath: /usr/bin/unity-control-center
InstallationDate: Installed on 2014-01-15 (34 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140115)
ProcCmdline: unity-control-center info
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=it_IT
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f40c9739f4a: mov %r8,0x8(%rdi)
 PC (0x7f40c9739f4a) ok
 source "%r8" ok
 destination "0x8(%rdi)" (0x0000000c) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity-control-center
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
 nouveau_pushbuf_kick () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
Title: unity-control-center crashed with SIGSEGV in nouveau_pushbuf_kick()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
usr_lib_unity-control-center:
 activity-log-manager 0.9.7-0ubuntu10
 deja-dup 29.5-0ubuntu2
 gnome-control-center 1:3.6.3-0ubuntu50
 gnome-control-center-unity 1.3+14.04.20140117-0ubuntu1

[Apport retracing service (apport)]

StacktraceTop:
 pushbuf_flush (push=push@entry=0x2a3c100) at ../../nouveau/pushbuf.c:425
 nouveau_pushbuf_kick (push=0x2a3c100, chan=<optimized out>) at ../../nouveau/pushbuf.c:774
 PUSH_KICK (push=<optimized out>) at ../../../../../../src/gallium/drivers/nouveau/nouveau_winsys.h:56
 nvc0_flush (pipe=0x3401cb0, fence=<optimized out>, flags=<optimized out>) at ../../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_context.c:45
 st_glFlush (ctx=<optimized out>) at ../../../../src/mesa/state_tracker/st_cb_flush.c:121