STS reliably crashes with a segfault. Steps to reproduce:
1. Attach the Equinox (PDE) source code.
2. Create a new plug-in project, selecting the "simple log service" template.
3. Open the OSGi ServiceTracker class from the newly-created activator.
4. Hover the class name "Tracker" on line 99.
STS crashes out of org.eclipse.swt.internal.gtk.OS._g_main_context_iteration, apparently while in the native implementation.
STS will also crash unpredictably out of this method at other times, but I can reproduce this crash out of a freshly-created project in a freshly-created workspace.
This does not appear to be a duplicate of 2027.
I attempted to duplicate the bug on 2.6.0SR1, but I couldn't get the Equinox source to attach.