gnome-control-center crashed with SIGSEGV in FcPatternObjectPosition() when selecting desktop background

[James Tait]

I was merely trying to select a desktop background from the Appearance panel, having opened it via the context menu on the desktop.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: gnome-control-center 1:3.6.3-0ubuntu30
ProcVersionSignature: Ubuntu 3.11.0-1.4-generic 3.11.0-rc4
Uname: Linux 3.11.0-1-generic x86_64
ApportVersion: 2.12-0ubuntu3
Architecture: amd64
CheckboxSubmission: dd3689fa6394f60ec14dbe98d0bab891
CheckboxSystem: b633b4f40868d491c2ae5b50030ce6f3
Date: Thu Aug 15 14:47:32 2013
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2010-08-23 (1087 days ago)
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
MarkForUpload: True
ProcCmdline: gnome-control-center background
SegvAnalysis:
 Segfault happened at: 0x7fe8bba5ce0d: mov (%r8,%rdx,1),%edx
 PC (0x7fe8bba5ce0d) ok
 source "(%r8,%rdx,1)" (0x7feb6081fe40) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gnome-control-center
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
 ?? () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
 FcFontRenderPrepare () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
 ?? () from /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0
Title: gnome-control-center crashed with SIGSEGV in FcFontRenderPrepare()
UpgradeStatus: Upgraded to saucy on 2013-08-11 (3 days ago)
UserGroups: adm admin audio cdrom dialout disk floppy fuse libvirtd lpadmin netdev plugdev powerdev sambashare sudo vde2-net video
usr_lib_gnome-control-center:
 activity-log-manager 0.9.7-0ubuntu4
 deja-dup 27.3.1-0ubuntu1
 gnome-control-center-signon 0.1.7~+13.10.20130724.1-0ubuntu1
 gnome-control-center-unity 1.3daily13.06.14.1-0ubuntu1
 indicator-datetime 12.10.3+13.10.20130731-0ubuntu1

[Apport retracing service (apport)]

StacktraceTop:
 FcPatternObjectPosition (p=p@entry=0x7fe8600e6ae0, object=19) at fcpat.c:392
 FcPatternObjectFindElt (p=p@entry=0x7fe8600e6ae0, object=<optimized out>) at fcpat.c:408
 IA__FcFontRenderPrepare (config=config@entry=0x0, pat=pat@entry=0x7fe860096c80, font=0x7fe8600e6ae0) at fcmatch.c:565
 pango_fc_fontset_load_next_font (fontset=0x7fe8600132d0) at /build/buildd/pango1.0-1.32.5/./pango/pangofc-fontmap.c:850
 pango_fc_fontset_get_font_at (fontset=fontset@entry=0x7fe8600132d0, i=i@entry=0) at /build/buildd/pango1.0-1.32.5/./pango/pangofc-fontmap.c:877

[Sebastien Bacher (seb128)]

the bug is years old without activity nor new report and the code changed quite a lot since, closing, feel free to register new bugs if you have issues in newer versions though