[Pharo-project] Delay bug

Stéphane Ducasse stephane.ducasse at inria.fr
Wed Apr 6 18:24:58 CEST 2011


thanks gary.
Yes adrian got a problem on his server after two weeks of load. I do not know how we can improve them.

Stef

On Apr 6, 2011, at 6:02 PM, Gary Chambers wrote:

> Well, we have been having problems with applications appearing to hang every 6 days or so (sound familiar?).
>  
> I have identified a bug in the Delay implementation, rather obscure, but highlighted by our applications that make HEAVY use of processes/(tight, a few tens of milliseconds)delays/semaphores etc.
> Naturally due to an edge case on millisecond clock rollover...
>  
> Affects all Squeak/Pharo versions, as far as I can tell. (It is separate from the OSProcess issues I have posted about a few weeks ago).
>  
> I've developed a potential fix, though I'll have to let you all know whether (hopefully) successful in a week or two... fingers crossed!
>  
> I hope it is fixable, last hurdle for business applications, from our point of view.
>  
> I'll post details when fix confirmed or failed then.
> 
> Regards, Gary




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