SUMMARY

By forcing Weston-DRM to launch with `whiteglass` or another minimalist X cursor theme, launched client demos can segfault during user interaction. This is because they wrongly assume that any cursor theme contains all the cursors it needs-- even if they do not exist on the filesystem.

Ideally, the clients should do cursor existence checks to avoid such segfaults.


CODE

The DnD client demo is Exhibit A.


REFERENCE(S)

https://bbs.archlinux.org/viewtopic.php?pid=1122238#p1122238


REPRODUCTION

0. Install the `whiteglass` Xcursor theme (on Ubuntu, "xcursor-themes" package)

1. Set a symlink to ensure it is loaded
  ln -s /usr/share/icons/whiteglass/cursors $HOME/.icons/default

2. Launch Weston-DRM
  weston-launch

3. Launch Weston-Terminal

4. From Weston-Terminal, launch the "dnd" client demo

5. Click a shape in the new window

6. See segfault