gnome-tweak-tool crashed with SIGSEGV in _gtk_css_value_ref()

[Anders Kaseorg]

gnome-tweak-tool crashed with SIGSEGV in gtk_style_properties_set_valist()

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: gnome-tweak-tool 3.12.0-2ubuntu1
ProcVersionSignature: Ubuntu 3.15.0-6.11-generic 3.15.0
Uname: Linux 3.15.0-6-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.14.4-0ubuntu1
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Jul 10 17:48:26 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-tweak-tool
InstallationDate: Installed on 2010-12-05 (1313 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101202)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/gnome-tweak-tool
SegvAnalysis:
 Segfault happened at: 0x7f53bfe35753: lock addl $0x1,0x8(%rdi)
 PC (0x7f53bfe35753) ok
 source "$0x1" ok
 destination "0x8(%rdi)" (0x00000008) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: gnome-tweak-tool
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 gtk_style_properties_set_valist () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
Title: gnome-tweak-tool crashed with SIGSEGV in gtk_style_properties_set_valist()
UpgradeStatus: Upgraded to utopic on 2013-10-31 (252 days ago)
UserGroups: adm admin bumblebee cdrom dialout fuse kvm libvirtd lpadmin plugdev sambashare sudo wireshark

[Apport retracing service (apport)]

StacktraceTop:
 _gtk_css_value_ref (value=value@entry=0x0) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcssvalue.c:51
 _gtk_style_properties_set_property_by_property (props=props@entry=0x2c5b500, style_prop=style_prop@entry=0x7f53b40048f0, state=state@entry=GTK_STATE_FLAG_NORMAL, value=value@entry=0x0) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkstyleproperties.c:460
 _gtk_css_style_property_assign (property=0x7f53b40048f0, props=0x2c5b500, state=GTK_STATE_FLAG_NORMAL, value=<optimized out>) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcssstyleproperty.c:151
 unpack_font_description (shorthand=<optimized out>, props=0x2c5b500, state=GTK_STATE_FLAG_NORMAL, value=<optimized out>) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcssshorthandpropertyimpl.c:980
 gtk_style_properties_set_valist (props=props@entry=0x2c5b500, state=state@entry=GTK_STATE_FLAG_NORMAL, args=args@entry=0x7fff12bf1c98) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkstyleproperties.c:557

[Jeremy Bícha (jbicha)]

Thank you for reporting this bug to Ubuntu. Ubuntu 14.10 reached End of Life in 2015. See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Please upgrade to Ubuntu 16.04 LTS and re-test. If the bug is still
reproducible, increase the verbosity of the steps to recreate it so we
can try again.

I apologize that we are not always to respond to bug reports promptly.
Do feel free to report any other bugs you may find.