[Bug 131679] Re: Crash inside doPoll()

[Robert Ancell]

The stack trace shows the code iterating over a list of file descriptor
structures and an iteration returning invalid memory (as shown in the
many duplicates).  Each file descriptor has an arbitrary callback
attached to it.  I'd bet a lot of money the bug is the list is being
modified inside on of the callbacks.

** Summary changed:

- compiz.real crashed with SIGSEGV when attempting to unlock screen
+ Crash inside doPoll()

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Crash inside doPoll()
https://bugs.launchpad.net/bugs/131679
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