[Bug 38143] IO completions cause wineserver to leak APC packets

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=38143

--- Comment #8 from Dmitry Timoshkov <dmitry at baikal.ru> ---
(In reply to Alexandre Julliard from comment #7)
> > The tests I've added clearly show that user APCs are not supposed to be
> > executed during GetQueuedCompletionStatus call, so my patch is wrong in
> > that regard. On the other hand it looks like the queued APCs are never
> > executed (and nothing in the attached application breaks) means that
> > adding an APC to the queue as a reply to APC_ASYNC_IO request and actually
> > executing it wasn't tested very well (if tested at all). So it raises
> > a question whether APCs should be always generated by server, or generated
> > at all.
> 
> To be fully compatible it should of course only generate system APCs, but we
> can't do that since we want to call heap functions and we can't do that
> asynchronously.

Alexandre, what would you suggest as possible solution(s)?

Also, could you please add a comment with possible solutions/suggestions
to the bug 37669 and reply to Sebastian's attempt to introduce limited
support (http://source.winehq.org/patches/data/109331) for handling write
watch exceptions on signal stack? That patch (as usually) is marked as
pending without a slight insight what should be changed or reworked to
get this fixed properly.

Both of this problems are caused by fundamental limitations in Wine and
need IMHO help from your side. Thanks in advance.

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