gnome-language-selector crashed with SIGSEGV in pkgCache::ReMap()

[Jean-Baptiste Lallement]

Trusty Desktop amd64 20140415

TEST CASE (not reproducible):
1. OEM Installation in english
2. End-user setup in German

ACTUAL RESULT
After login, the end user is not notified that language support for German is incomplete (bug 1307983).
This crash occurs when going to 'System Settings -> Language Support'

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: language-selector-gnome 0.129
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Apr 16 10:18:45 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-language-selector
ExecutableTimestamp: 1397155188
InstallationDate: Installed on 2014-04-16 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140415)
InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/gnome-language-selector
ProcCwd: /home/ubuntu
SegvAnalysis:
 Segfault happened at: 0x7fe3f008ec8b <_ZN8pkgCache5ReMapERKb+123>: cmp %rax,0x0(%rbp)
 PC (0x7fe3f008ec8b) ok
 source "%rax" ok
 destination "0x0(%rbp)" (0xffffffffffffffff) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: language-selector
StacktraceTop:
 pkgCache::ReMap(bool const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCache::pkgCache(MMap*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
Title: gnome-language-selector crashed with SIGSEGV in pkgCache::ReMap()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 pkgCache::ReMap (this=this@entry=0x7fff9e27b8d0, Errorchecks=@0x7fff9e27b7d0: true) at pkgcache.cc:159
 pkgCache::pkgCache (this=0x7fff9e27b8d0, Map=<optimized out>, DoMap=<optimized out>) at pkgcache.cc:129
 CheckValidity (CacheFile=..., List=..., Start=..., End=..., OutMap=OutMap@entry=0x1acc760) at pkgcachegen.cc:1184
 pkgCacheGenerator::MakeStatusCache (List=..., Progress=0x7fff9e27bdf0, OutMap=0x1acc760, AllowMem=<optimized out>) at pkgcachegen.cc:1406
 pkgCacheFile::BuildCaches (this=this@entry=0x1acc750, Progress=Progress@entry=0x7fff9e27bdf0, WithLock=false) at cachefile.cc:90

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1308396