Your not running Citrix are you? ... ;-D (being sarcastic BTW) Jeremy
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Trevor Jones Sent: 13 May 2007 14:22 To: 'NZ Borland Developers Group - Delphi List' Subject: RE: [DUG] Long running apps & weirdness Rohit, Unfortuantely the weirdness can only be explained as I did: The kind of things that are being reported as going wrong make no sense whatsoever. A list index out of bounds exception when doing nothing that involves lists. Strange options being invoked when they are definitely turned off. App print drivers mysteriously vanishing. Sort of like BDS2006 (or Windows itself for that matter). -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rohit Gupta Sent: Saturday, 12 May 2007 10:16 p.m. To: NZ Borland Developers Group - Delphi List Subject: Re: [DUG] Long running apps & weirdness You havent explained the wierdness... Trevor Jones wrote: > Hello, > Just wondering if any of you have encountered really weird bugs and > support issues on machines that have been running for a long time > (without a > reboot). > > Recently, I have noticed that we have been getting support calls for > strange app behaviour. The kind of things that are being reported as going > wrong make no sense whatsoever. > > My first thought was that there might be a memory leak in my app, > but further investigation shows that there are none. > > There is no consistency to any of the reported faults, apart from > the fact > that they are all "weird". In each case, the app and the OS have an up-time > of more than 2 weeks. Often, the up-time is less than that required to cause > a bug with the roll-over of GetTickCount, so I can dismiss that. > > A reboot of the OS (or a restart of the app) always fixes any of the > weirdness. > > The app is built with D2006. > > The OS is XP embedded (and I have no idea which bits it includes and which > bits are left out from regular XP). > > The hardware is bargain-basement stuff, but so far, no blue screens, > so I > probably can't blame the graphics cards, keyboards or mice. > > Over 1500 machines, we get about 3 or 4 reports a week of the Delphi > app misbehaving, so it doesn't sound like my fault (which in itself is unusual). > > All of the machines were purchased in November 2006, so there could > be some kind of burn-in time problem. > > I have no idea what to say to the customer other than to blame it > all on the hardware (as any programmer should), and say that they > probably have defective RAM. > > At a guess, I would say that my Delphi app has exhibited weirdness > on less > than 1% of the installed base, but even at that level, I have to come > up with answers. I have none. > > Should I say that you shouldn't let a Windows system run for longer > than a > week without rebooting? (I hate to blame MS). > > I suspect that the reason that my own dev machine is so stable is because > Windows Automatic Update requires a reboot every few days as each new update > becomes available. > > Do you have a suggestion? > > Trevor > _______________________________________________ > NZ Borland Developers Group - Delphi mailing list > Post: [email protected] > Admin: http://delphi.org.nz/mailman/listinfo/delphi > Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe > > > _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: [email protected] Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: [email protected] Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.463 / Virus Database: 269.6.0/775 - Release Date: 24/04/2007 17:43 Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.463 / Virus Database: 269.6.0/775 - Release Date: 24/04/2007 17:43 _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: [email protected] Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe
