[Bug 24549] Firestarter Demo crashes on exit when mouse is moved.

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=24549

--- Comment #7 from Alexandre Julliard <julliard at winehq.org> 2010-10-19 05:39:06 CDT ---
(In reply to comment #6)
> In order for it not to be dangerous, you'd have to promise that
> no signals will ever be delivered to Wine at the point that
> there is live data on the stack below %esp.  If that did ever
> happen then the data would be trashed by the signal delivery
> frame, and you'd have an almost impossible-to-recreate timing
> dependent failure.

We use signal stacks for this reason. If a signal touches the main stack that's
a bug. There is no guarantee that there even is a main stack for signal
delivery, apps play some very strange games sometimes.

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