[Bug 22580] RegisterWaitForSingleObject() with tmo=0 causes 100% CPU load

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=22580





--- Comment #36 from joakim.tjernlund at transmode.se  2010-05-10 07:29:51 ---
(In reply to comment #35)
> (In reply to comment #34)
> > No, it shows that <= XP behaves according to the spec.
> 
> That also means that applications can't depend on this behaviour, since
> the behaviour is different across platforms.

Sure, for anything new one cannot rely on this behaviour.

> 
> > > > How do you know there aren't more apps out there using this?
> > > > There are a few 100% cpu usage bugs in bugzilla.
> > > 
> > > There could be a lot of reasons leading to 100% cpu usage, there is no need
> > > to speculate about that.
> > 
> > Sure, but just a few lines up you claimed there are no apps suffering from
> > this bug. Care to expand on that?
> 
> That's simple, you haven't listed a single application affected by this bug.

That is hardly the same as your claim that no other apps is affected.

> Any other bug with 100% cpu usage needs its own investigation.

yes, but this is one idea to test.

> 
> > Bottom line is that MS changed the SPEC and impl. of this function in later
> > Windows. I think the new SPEC is a bug as I can't think of a use case
> > wanting this behavior as it just causes 100% CPU pegging.
> 
> Then this bug could be closed as a WONTFIX. You have found something that
> doesn't exist anymore.

Now you are back to not supporting apps written on <= XP. You cannot
have it both ways.

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