[Bug 92214] Flightgear crashes during splashboot with R600 driver and mesa 11.0.2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92214

--- Comment #10 from Roland Scheidegger <sroland at vmware.com> ---
Some very quick search turned up this bug, which looks like it could be a
winner: https://bugs.archlinux.org/task/43010
Seems some libpthread implementations will try to call hw lock elision
instructions on cpus where lock elision isn't supported, but _only_ if unlock
is called on an already unlocked lock (so the calling code is buggy which is
why it's a won't fix in libpthread).
Debug information for libpthread would be nice, or you could disassemble in gdb
when it crashes to confirm it's actually calling that.
I have no idea where that bug could be but should be worthwile to track it
down, normally you don't get the luxury of a straight neat crash when the
locking is wrong...

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