Comment 11 for bug 1203296

Yes, we know. Unfortunately it is completely unreproducible - it seems different for everyone. On top of that, all the traces are useless because it is crashing inside the Gtk slice allocator which means the corruption happened much earlier - or this is a Gtk bug.

I think it is actually responsible for something like 9 out of the top 10 crashes in Xubuntu, and I have yet to find anyone who's steps to reproduce work on my machine.

There's also an upstream bug report but there's nothing useful there either.