For me, running on my desktop, it's the 5th language from the bottom. We
think it's Myanmar (Burmese).

Any ideas how we could run valgrind on this and get useful results?

** Bug watch added: freedesktop.org Bugzilla #77433
   https://bugs.freedesktop.org/show_bug.cgi?id=77433

** Also affects: harfbuzz via
   https://bugs.freedesktop.org/show_bug.cgi?id=77433
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1303516

Title:
  ubiquity crashed with SIGSEGV in _int_malloc()

Status in HarfBuzz:
  Unknown
Status in “graphite2” package in Ubuntu:
  Triaged
Status in “harfbuzz” package in Ubuntu:
  New
Status in “graphite2” source package in Trusty:
  Triaged
Status in “harfbuzz” source package in Trusty:
  New

Bug description:
  TEST CASE:
  IMPORTANT NOTE: below will modify currently running locale/keyboard be 
prepared to restore it, e.g. by enabling keyboard indicator to change keyboard 
back to normal.

  1. Install ubiquity on a desktop or boot from an ISO
    $ sudo apt-get install ubiquity-frontend-gtk
  2. If you run on a desktop start ubiquity with:
    $ ubiquity --greeter
  3. Scroll to the bottom of the language list, click on 5th or 4th from the 
bottom

  ACTUAL RESULT
  python3 segmentation fault:
  *** Error in `/usr/bin/python3': malloc(): memory corruption: 
0x0000000003b33d80 ***
  Segmentation fault (core dumped)

  EXPECTED RESULT
  No crash

  
  == Original Report ==

  I was testing a daily imagine of Ubuntu Gnome 14.04 (Live Image test),
  and was just checking out the languages on the initial boot up. When i
  was trying to click on the 4th language from the bottom ubiquitity
  crashed to give me this error.

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: ubiquity 2.17.10
  ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
  Uname: Linux 3.13.0-23-generic x86_64
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.339
  Date: Mon Apr  7 00:06:38 2014
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InstallCmdLine: file=/cdrom/preseed/ubuntu-gnome.seed boot=casper 
initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  InterpreterPath: /usr/bin/python3.4
  LiveMediaBuild: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406)
  ProcCmdline: /usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity --greeter --only
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
  SegvAnalysis:
   Segfault happened at: 0x7f3d8a71dd71 <_int_malloc+689>:      mov    
%r14,0x10(%r9)
   PC (0x7f3d8a71dd71) ok
   source "%r14" ok
   destination "0x10(%r9)" (0x180000001210) not located in a known VMA region 
(needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: ubiquity
  StacktraceTop:
   _int_malloc (av=0x7f3d8aa5c760 <main_arena>, bytes=1824) at malloc.c:3489
   __GI___libc_malloc (bytes=1824) at malloc.c:2891
   ?? () from /usr/lib/x86_64-linux-gnu/libgraphite2.so.3
   gr_make_font_with_ops () from /usr/lib/x86_64-linux-gnu/libgraphite2.so.3
   gr_make_font_with_advance_fn () from 
/usr/lib/x86_64-linux-gnu/libgraphite2.so.3
  Title: ubiquity crashed with SIGSEGV in _int_malloc()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UpstartUbiquity: debconf: DbDriver "templatedb": 
/var/cache/debconf/templates.dat is locked by another process: Resource 
temporarily unavailable
  UserGroups:

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