[cairo-bugs] [Bug 91967] Assertion "(_cairo_atomic_int_get (&(&surface->ref_count)->ref_count) > 0)"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91967

--- Comment #41 from Wolfgang Ulbrich <chat-to-me at raveit.de> ---
Just tested on fedora 24 with
- cairo-1.14.6 +  'cairo-xlib-surface: set image to NULL after destroying it'
patch
- libwnck-3.18.0 + 'add error trap in try_pixmap_and_mask' patch from libwnck
report
- running test3.py reproducer

Mate wnck applets or mate-panel don't crash any more.
But the whole desktop can easily freeze if i try to open another window if
test3.py is running.
This didn't happen without 'add error trap in try_pixmap_and_mask'.

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