<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - blueman and xfce4-power-manager crash when opening right-click menu while terminus is set as system font" href="https://bugs.freedesktop.org/show_bug.cgi?id=78787#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - blueman and xfce4-power-manager crash when opening right-click menu while terminus is set as system font" href="https://bugs.freedesktop.org/show_bug.cgi?id=78787">bug 78787</a> from <a class="email" href="mailto:sixtysix@inwind.it" title="Massimo <sixtysix@inwind.it>"> Massimo</a> <pre>I was able to reproduce this crash with gimp and cairo from git master. On fedora 22, I have installed 'gnome-themes', 'gnome-themes-legacy' and 'gtk-murrine-engine'. I have put in ~/.gtkrc-2.0 these three lines: include "/usr/share/themes/MurrinaEalm/gtk-2.0/gtkrc" style "myfont" { font_name = "Terminus 11" } widget_class "*" style "myfont" gtk-font-name = "Terminus 11" and use the this command line to start gimp-2.9 installed in $HOME/prefix GTK_PATH=$HOME/prefix/lib64/gtk-2.0:/usr/lib64/gtk-2.0 gimp-2.9 The problem is that in src/cairo-scaled-font.c _cairo_scaled_glyph_lookup is called with the 'scaled_font->cache_frozen' TRUE: <a href="http://cgit.freedesktop.org/cairo/tree/src/cairo-scaled-font.c#n2961">http://cgit.freedesktop.org/cairo/tree/src/cairo-scaled-font.c#n2961</a> but when scaled_font_backend->scaled_glyph_init returns for example CAIRO_INT_STATUS_UNSUPPORTED <a href="http://cgit.freedesktop.org/cairo/tree/src/cairo-scaled-font.c#n2982">http://cgit.freedesktop.org/cairo/tree/src/cairo-scaled-font.c#n2982</a> (which comments suggest being not an error) <a href="http://cgit.freedesktop.org/cairo/tree/src/cairo-scaled-font.c#n3022">http://cgit.freedesktop.org/cairo/tree/src/cairo-scaled-font.c#n3022</a> _cairo_scaled_glyph_page_destroy is called (via _cairo_scaled_font_free_last_glyph) which expects scaled_font->cache_frozen being FALSE. thawing the cache before calling _cache_scaled_font_free_last_glyph and freezing it after fixes the crash, perhaps introducing races in multi threaded programs.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>