[Bug 1206739] Re: xfce4-terminal crashed with SIGSEGV in magazine_chain_pop_head()

[Julian Taylor]

** Bug watch added: Debian Bug tracker #729316
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=729316

** Also affects: xfce4-terminal (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=729316
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1206739

Title:
  xfce4-terminal crashed with SIGSEGV in magazine_chain_pop_head()

Status in XFCE4 Terminal Emulator:
  Unknown
Status in “xfce4-terminal” package in Ubuntu:
  Confirmed
Status in “xfce4-terminal” source package in Saucy:
  New
Status in “xfce4-terminal” package in Debian:
  Unknown
Status in “xfce4-terminal” package in Fedora:
  Unknown

Bug description:
  [Impact]

  When the user opens the encoding menu, xfce4-terminal crashes. This is
  caused by inappropriate handling of the radio item group used in the
  menu.

  All open xfce4-terminal windows get killed, as they are all the same
  process. In addition, anything launched from a terminal window,
  including backgrounded and/or GUI apps, also gets killed. This can
  lead to a lot of unsaved work getting lost.

  The fix does two things: first, simply don't add the non-radio items
  to the radio item group. Secondly, build the radio item group the way
  described in the Gtk+ documentation.

  [Test Case]

  Run xfce4-terminal and click Terminal -> Set Encoding.

  [Regression Potential]

  Minimal. Currently the crash happens 100% of the time when calling a
  particular function, and that function is the only one modified by the
  patch.

  The patched xfce4-terminal is available in ppa:a-j-buxton/xfce

  --

  Tried to open the set encoding menu sub menu under the terminal menu

  expected to see a list including UTF-8 bun instead it crashed instead
  of showing a menu

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: xfce4-terminal 0.6.2-3ubuntu1
  ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3
  Uname: Linux 3.10.0-6-generic x86_64
  ApportVersion: 2.11-0ubuntu1
  Architecture: amd64
  Date: Tue Jul 30 20:42:33 2013
  ExecutablePath: /usr/bin/xfce4-terminal
  InstallationDate: Installed on 2013-07-27 (3 days ago)
  InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130727)
  MarkForUpload: True
  ProcCmdline: xfce4-terminal
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f7086d60767 <g_slice_alloc+167>:	mov    (%rbx),%rax
   PC (0x7f7086d60767) ok
   source "(%rbx)" (0x00000010) not located in a known VMA region (needed readable region)!
   destination "%rax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: xfce4-terminal
  StacktraceTop:
   g_slice_alloc () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   g_slice_alloc0 () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  Title: xfce4-terminal crashed with SIGSEGV in g_slice_alloc()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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