Comment 31 for bug 401067
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0e1f616
(Get the code!)
Google Earth can trigger this as well. But I also have a small Windows app, with source code, that can trigger this bug. I'm going to strip it down to a minimum testcase and attach the source and binary.
The problem appears to be memory corruption. A pointer is being overwritten by the time driDestroyContext() is called. It can be a different pointer each time, and sometimes the crash doesn't occur at all.