[Bug 180458] Re: viewml crashes on save HTML2+MathML document

[Kees Cook]

** Description changed:

  Binary package hint: mlview
  
  Crashed after editing an XML 1.0/XHTML2+MathML document, apparently no data loss. trace is very long, starts with:
  mlview-debug: in void mlview::PluginPriv::load() : in file mlview-plugin.cc :  line 72 : condition (module) failed; raising exception 
  mlview-debug: in void mlview::PluginManager::load_all_plugins_from_default_plugins_dir() : in file mlview-plugin-manager.cc :  line 106 : catched exception: Assertion failed
  
  mlview-debug: in MlViewStatus mlview::SourceView::set_default_language() : in file mlview-source-view.cc :  line 539 : mime_type: application/xhtml+xml
  mlview-debug: in MlViewStatus mlview::SourceView::set_language_from_mime_type(const mlview::UString&) : in file mlview-source-view.cc :  line 515 : language associated to 'application/xhtml+xml'mime type: 0
  mlview-debug: in MlViewStatus mlview::SourceView::set_language_from_mime_type(const mlview::UString&) : in file mlview-source-view.cc :  line 522 : falling back to the language associated tomime type 'text/xml'
  mlview-debug: trying ro recon key: %x; mod & default mod mask:%x ...
  : in file mlview-kb-eng.cc: line 395: (MlViewStatus mlview_kb_eng_lookup_a_key_binding(MlViewKBEng*, const MlViewKeyInput*, gint, MlViewKBDef**))
  mlview-debug: Current key in lookup sequence: %x, modifier & default_mode_mask: %x
  : in file mlview-kb-eng.cc: line 417: (MlViewStatus mlview_kb_eng_lookup_a_key_binding(MlViewKBEng*, const MlViewKeyInput*, gint, MlViewKBDef**))
  mlview-debug: didn't find keybinding
  
  the rest of the trace seems very similar to this last one
  
  ProblemType: Crash
  Architecture: i386
  Date: Sat Jan  5 01:05:16 2008
  DistroRelease: Ubuntu 8.04
  ExecutablePath: /usr/bin/mlview
  NonfreeKernelModules: cdrom
  Package: mlview 0.9.0-2
  PackageArchitecture: i386
  ProcCmdline: mlview
  ProcCwd: /home/stefan
  ProcEnviron:
   SHELL=/bin/bash
   PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
   LANG=C
  Signal: 11
  SourcePackage: mlview
  StacktraceTop:
   gtk_widget_get_parent () from /usr/lib/libgtk-x11-2.0.so.0
   Gtk::Widget::get_parent () from /usr/lib/libgtkmm-2.4.so.1
   mlview::OldGVC::on_view_name_changed ()
   sigc::internal::slot_call1<sigc::bound_mem_functor1<void, mlview::OldGVC, mlview::IView*>, void, mlview::IView*>::call_it ()
   mlview::IView::set_view_name ()
  Title: mlview crashed with SIGSEGV in gtk_widget_get_parent()
  Uname: Linux Stefan-Desktop 2.6.24-2-generic #1 SMP Thu Dec 20 17:36:12 GMT 2007 i686 GNU/Linux
  UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev scanner video
+ SegvAnalysis:
+  Segfault happened at: 0xb7262399 <gtk_widget_get_parent+41>:	cmp    %eax,(%edx)
+  PC (0xb7262399) ok
+  source "%eax" ok
+  destination "(%edx)" (0x00000003) not located in a known VMA region (needed writable region)!
+ SegvReason: writing NULL VMA

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viewml crashes on save HTML2+MathML document
https://bugs.launchpad.net/bugs/180458
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