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

[Alexandre Liscia]

I tried to place my secondary monitor on the left and also to desactivate the launcher on the right screen so I could have an only launcher at the very left of my whole desktop.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: unity-control-center 15.04.0+16.04.20160216-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-4.19-generic 4.4.1
Uname: Linux 4.4.0-4-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Thu Feb 18 16:28:36 2016
ExecutablePath: /usr/bin/unity-control-center
InstallationDate: Installed on 2016-02-11 (7 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160210)
ProcCmdline: unity-control-center --overview
ProcEnviron:
 PATH=(custom, no user)
 SHELL=/bin/bash
 LANG=fr_FR.UTF-8
 LANGUAGE=fr_FR
 XDG_RUNTIME_DIR=<set>
SegvAnalysis:
 Segfault happened at: 0x7f87b14216a7 <gtk_widget_size_allocate_with_baseline+23>: mov 0x18(%rdi),%rbp
 PC (0x7f87b14216a7) ok
 source "0x18(%rdi)" (0x00000018) not located in a known VMA region (needed readable region)!
 destination "%rbp" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-control-center
StacktraceTop:
 gtk_widget_size_allocate_with_baseline () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libunity-control-center.so.1
 gtk_widget_size_allocate_with_baseline () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-control-center crashed with SIGSEGV in gtk_widget_size_allocate_with_baseline()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 gtk_widget_size_allocate_with_baseline (widget=0x0, allocation=allocation@entry=0x7ffe3e07ce60, baseline=baseline@entry=-1) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./gtk/gtkwidget.c:5814
 gtk_widget_size_allocate (widget=<optimized out>, allocation=allocation@entry=0x7ffe3e07ce60) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./gtk/gtkwidget.c:6026
 cc_panel_size_allocate (widget=0x15a5360, allocation=0x7ffe3e07cf00) at cc-panel.c:192
 gtk_widget_size_allocate_with_baseline (widget=widget@entry=0x15a5360, allocation=allocation@entry=0x7ffe3e07cfb0, baseline=baseline@entry=-1) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./gtk/gtkwidget.c:5957
 gtk_alignment_size_allocate (widget=0x13adc40, allocation=0x7ffe3e07d4d0) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./gtk/deprecated/gtkalignment.c:643

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.