[Bug 920201] Re: python2.7 crashed with SIGSEGV in gtk_box_pack()

[Matthias Klose]

** Visibility changed to: Public

** Package changed: python2.7 (Ubuntu) => pygtk (Ubuntu)

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Title:
  python2.7 crashed with SIGSEGV in gtk_box_pack()

Status in “pygtk” package in Ubuntu:
  New

Bug description:
  Precise pangolin ubuntu system, fully updated.

  I was playing around with python and pygi, with this code:

  from gi.repository import Gtk

  class BottomBox(Gtk.Box):
  	def __init__(self):
  		self.Lowerlimit = Gtk.SpinButton()
  		self.Upperlimit = Gtk.SpinButton()
  		self.GoButton = Gtk.Button()
  		self.pack_start(self.Lowerlimit, True, False, 0)
  		self.pack_start(self.Upperlimit, True, False, 0)
  		self.pack_start(self.GoButton, True, False, 0)

  bottombox = BottomBox()
  win = Gtk.Window()
  win.connect("delete-event", Gtk.main_quit)
  win.add(bottombox)
  win.show_all()
  Gtk.main()

  I realise that it's probably my code that is bad, but I'm guessing
  python shouldn't segfault. If it is meant to, then please dismiss the
  bug. Thanks!

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: python2.7-minimal 2.7.2-13ubuntu4
  ProcVersionSignature: Ubuntu 3.2.0-10.17-generic 3.2.1
  Uname: Linux 3.2.0-10-generic x86_64
  ApportVersion: 1.91-0ubuntu1
  Architecture: amd64
  CrashCounter: 1
  Date: Sun Jan 22 22:45:29 2012
  ExecutablePath: /usr/bin/python2.7
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120114)
  ProcCmdline: python gtktest.py
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   LANGUAGE=en_GB:en
  SegvAnalysis:
   Segfault happened at: 0x7fa34a2b6778 <gtk_box_pack+40>:	mov    0x28(%rdi),%rdx
   PC (0x7fa34a2b6778) ok
   source "0x28(%rdi)" (0x00000028) not located in a known VMA region (needed readable region)!
   destination "%rdx" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: python2.7
  StacktraceTop:
   gtk_box_pack (box=0x0, child=0x126b090, expand=1, fill=0, padding=0, pack_type=GTK_PACK_START) at /build/buildd/gtk+3.0-3.3.8/./gtk/gtkbox.c:974
   ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
   ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
   ?? () from /usr/lib/libgirepository-1.0.so.1
   g_function_info_invoke () from /usr/lib/libgirepository-1.0.so.1
  Title: python2.7 crashed with SIGSEGV in gtk_box_pack()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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