https://bugs.freedesktop.org/show_bug.cgi?id=93649
--- Comment #47 from Amarildo amarildo-geral@autistici.org --- In all honesty, this is one of the most interesting bugs I know. Within all the people that have it, there are variations to which causes it in the first place.
What works for me (Debian Jessie with Mesa/libc6 from Backports, for example) might still cause the crash for some people.
What I do know is that it's not caused by faulty hardware. It could be for some, but seriously doubt it it's the cause for 99.99% of people experiencing the issue.