[Pharo-project] Delay bug
gazzaguru2 at btinternet.com
Mon Apr 11 11:28:21 CEST 2011
----- Original Message -----
From: "Adrian Lienhard" <adi at netstyle.ch>
To: <Pharo-project at lists.gforge.inria.fr>
Sent: Wednesday, April 06, 2011 5:41 PM
Subject: Re: [Pharo-project] Delay bug
We managed to resolve our initial problem with the process scheduling .
All Cmsbox customers have been migrated to Pharo and it works very reliably
Gary, maybe you could open a ticket already now and post what you know at
this time to get early feedback.
On Apr 6, 2011, at 18:24 , Stéphane Ducasse wrote:
> thanks gary.
> Yes adrian got a problem on his server after two weeks of load. I do not
> know how we can improve them.
> 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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