I tracked this down to:
@honorBlockedSignals
def on_window_main_key_press_event(self, widget, event):
keyname = Gdk.keyval_name(event.keyval)
The crash happens on Gdk.keyval_name(). This doesn't happen when running
against GTK3, so at some point this got fixed in GTK:
$ python -c 'from gi.repository import Gdk; print Gdk.keyval_name(65307)'
Escape
$ python -c "import gi; gi.require_version('Gdk', '2.0'); from gi.repository
import Gdk; print Gdk.keyval_name(65307)"
*** glibc detected *** python: free(): invalid pointer: 0x00007f0347b21806 ***
** Also affects: gtk+2.0 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: gtk+2.0 (Ubuntu)
Importance: Undecided => Medium
** Changed in: gtk+2.0 (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/732484
Title:
Gdk.keyval_name() crashes with free(): invalid pointer:
0x00007f4d337de806
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