viewml crashes on save HTML2+MathML document

[Stefan Friesel]

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

[Apport retracing service (apport)]

StacktraceTop:IA__gtk_widget_get_parent (widget=0x8318970)
Gtk::Widget::get_parent (this=0x82f8138) at widget.cc:6037
mlview::OldGVC::on_view_name_changed (this=0x80c87a0, a_view=0x82f8138)
sigc::internal::slot_call1<sigc::bound_mem_functor1<void, mlview::OldGVC, mlview::IView*>, void, mlview::IView*>::call_it (rep=0x83be528, a_1=@0xbf985ed8)
mlview::IView::set_view_name (this=0x82f8138, a_name=@0xbf985f30)