mate-panel crashed with SIGSEGV

[Gene Soo]

Unknown Error after first boot of Daily Mate 16.04 Build.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: mate-panel 1.12.2-1
ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1
Uname: Linux 4.4.0-6-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: MATE
Date: Thu Feb 18 15:26:24 2016
ExecutablePath: /usr/bin/mate-panel
InstallationDate: Installed on 2016-02-18 (0 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160218)
ProcCmdline: mate-panel
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fe3a684dca8: mov 0x20(%rax),%rax
 PC (0x7fe3a684dca8) ok
 source "0x20(%rax)" (0x4a051e5e00000020) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: mate-panel
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
Title: mate-panel crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
XsessionErrors:
 mate-session[1256]: WARNING: Unable to find provider '' of required component 'dock'
 (mate-panel:1384): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
 (nm-applet:1404): Gdk-CRITICAL **: gdk_window_thaw_toplevel_updates: assertion 'window->update_and_descendants_freeze_count > 0' failed

[Apport retracing service (apport)]

StacktraceTop:
 gdk_window_add_update_window (window=0x155b480) at /build/gtk+2.0-tESQz7/gtk+2.0-2.24.29/gdk/gdkwindow.c:5304
 impl_window_add_update_area (impl_window=0x155b480, region=0x13f8520) at /build/gtk+2.0-tESQz7/gtk+2.0-2.24.29/gdk/gdkwindow.c:5928
 gdk_window_invalidate_maybe_recurse_full (window=<optimized out>, region=<optimized out>, clear_bg=CLEAR_BG_ALL, child_func=<optimized out>, user_data=<optimized out>) at /build/gtk+2.0-tESQz7/gtk+2.0-2.24.29/gdk/gdkwindow.c:6036
 gdk_window_invalidate_maybe_recurse_full (window=0x155b360, region=0x7fe38c007010, clear_bg=CLEAR_BG_ALL, child_func=0x7fe3a684c9b0 <true_predicate>, user_data=0x0) at /build/gtk+2.0-tESQz7/gtk+2.0-2.24.29/gdk/gdkwindow.c:6001
 gdk_window_invalidate_region_full (clear_bg=CLEAR_BG_ALL, invalidate_children=1, region=0x7fe38c007010, window=<optimized out>) at /build/gtk+2.0-tESQz7/gtk+2.0-2.24.29/gdk/gdkwindow.c:6091

[Martin Wimpress  (flexiondotorg)]

Fixed in mate-panel 1.18.6-1