Squeak-dev August 1999

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Problem w/ GraphMorph::drawOn
by Robert M. Fuhrer 26 Aug '99

26 Aug '99

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Re: PWS Headless Crashes
by Peter William Lount 26 Aug '99

26 Aug '99

Hi, Thanks for this source code Michael. Ah, it looks like I'll need the source for "SystemDictiaonry>setGCParameters" as well as any methods that it invokes! ... self processShutDownList. Cursor write show. save ifTrue: [resuming _ self snapshotPrimitive] "<-- PC frozen here on image file" ifFalse: [resuming _ false]. quit & resuming not ifTrue: [self quitPrimitive]. Cursor normal show. self setGCParameters. resuming ifTrue: [self clearExternalObjects]. self processStartUpList. ... All the best, Peter William Lount peter(a)smalltalk.org http://www.smalltalk.org

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PWS Headless Crashes
by Peter William Lount 25 Aug '99

25 Aug '99

Hi, I am attempting to get a headless Squeak running PWS and it crashes with the following: Segmentation fault 136652816 Delay class>timerInterruptWatcher 136653152 [] in Delay class>startTimerInterruptWatcher 136653228 [] in BlockContext>newProcess Has anyone seen this before or knows whats is happening? I'm running Squeak2.4c on unix. I've added PWS class>startUp to the SystemDictionary>processStartUpList PWS startUp PWS serveOnPort: 8080 loggingTo: 'log8080.txt'. When I start the headless server the log file gets created so I know that it executed the startUp script! When I attempt to connect with a web browser nothing happens. If I try this from a Squeak VM that has a gui it works fine and serves up the page... If I attempt to click a button on the web page when it's headless it crashes... Any thoughts? What are all the steps and modifications for making a successful PWS web server run headless? (I have a version of the squeak vm compiled with "CFLAGS=-DHEADLESS). All the best, Peter William Lount

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Re: PWS Headless Crashes
by Peter William Lount 25 Aug '99

25 Aug '99

It's not working now... got it to work just once... but not again... ;--( Peter ---------- From: Peter William Lount <peter(a)smalltalk.org> To: Squeak Mail List <squeak(a)cs.uiuc.edu> Subject: Fw: PWS Headless Crashes Date: August 25, 1999 1:38 PM Hi, Well the headless server now seems to respond after a long delay (like 30 seconds) when first loading the web page. But subsequenent requests form a submit button just hang it unless I press the button twice in which case it responds instantly but with a duplicate entry (since I pressed the submit button twice!)... ;--( You can try it (if it doesn't work the first time try again and make sure to try double clicking on the "post your message" button) at this demo site http://www.zoku.net:8080/chat Anyone got any ideas about this? All the best, Peter William Lount peter(a)smalltalk.org http://www.smalltalk.org

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Re: PWS Headless Crashes
by Peter William Lount 25 Aug '99

25 Aug '99

Hi, After applying this change the image won't even open in a gui squeak vm!!! Woops... Good thing I had a backup... Peter William Lount peter(a)smalltalk.org http://www.smalltalk.org ---------- From: Michael Rueger <Michael.Rueger.-ND(a)disney.com> To: peter(a)smalltalk.org Cc: Squeak Mail List <squeak(a)cs.uiuc.edu> Subject: Re: PWS Headless Crashes Date: August 25, 1999 1:36 PM Peter William Lount wrote: > I've added PWS class>startUp to the SystemDictionary>processStartUpList > > PWS startUp > PWS serveOnPort: 8080 loggingTo: 'log8080.txt'. This is due to a bug in the way Squeak handles the startup initialization. Andreas and I chased this problem for a while until Andreas finally found it. The problem is, that the startup list is processed *before* the external object array gets initialized. So when you work with e.g. Sockets in the startup list these entries are overwritten in the clearExternal objects leading to arbitrary crashes. Attached is an (unofficial) fix for this. There will be an updated VM and the corresponding fixes coming up as soon as Andreas has the time to consolidate the 2.5 VM. Michael -- "To improve is to change, to be perfect is to change often." Winston Churchill +------------------------------------------------------------+ | Michael Rueger | | Phone: ++1 (818) 623 3283 Fax: ++1 (818) 623 3559 | +--------Michael.Rueger.-ND(a)online.disney.com----------------+'From Squeak 2.5 of August 6, 1999 on 25 August 1999 at 1:32:38 pm'! !SystemDictionary methodsFor: 'snapshot and quit' stamp: 'ar 8/19/1999 23:23'! snapshot: save andQuit: quit "Mark the changes file and close all files. If save is true, save the current state of this Smalltalk in the image file. If quit is true, then exit to the outer shell. The latter part of this method runs when resuming a previously saved image. The resume logic checks for a document file to process when starting up." | resuming msg sourceLink | save & (SourceFiles at: 2) notNil ifTrue: [msg _ (quit ifTrue: ['----QUIT----'] ifFalse: ['----SNAPSHOT----']) , Date dateAndTimeNow printString. sourceLink _ ' priorSource: ' , LastQuitLogPosition printString. self assureStartupStampLogged. LastQuitLogPosition _ (SourceFiles at: 2) setToEnd; position. self logChange: msg , sourceLink. Transcript cr; show: msg]. self processShutDownList. Cursor write show. save ifTrue: [resuming _ self snapshotPrimitive] "<-- PC frozen here on image file" ifFalse: [resuming _ false]. quit & resuming not ifTrue: [self quitPrimitive]. Cursor normal show. self setGCParameters. resuming ifTrue: [self clearExternalObjects]. self processStartUpList. resuming ifTrue: [self readDocumentFile]. ^resuming! !

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Re: Minnow Down?
by squeaker 25 Aug '99

25 Aug '99

> Mark and I have discussed some alternative mechanisms > to keep access, at least, (if not editing) up even > when Squeak crashes. Either way, I hope that we can > get the situation stabilized soon. Some such solution would be *very* helpful. I can understand that simple mirroring will not work with a Swiki, because of the dynamic editability. But even a "read-only" mirror at a different, reliable site would ease the pain. I don't know about the rest of you, but Squeak has become absolutely mission-critical for me and I'm new enough at it that I *really* need the help, information, and support provided on Minnow, etc. For me, at least, Squeak is not an academic project, it is my development environment. To have my "help" system go down sporadically is very scary. John | John, squeaker(a)dangerous-minds.com | Squeak? http://www.squeak.org/ | | "Some minds are dangerous because they're sharp and pointed; | | others, because they're heavy and dull; mine, because I know | | enough to get into trouble but not necessarily out." | _____________________________________________ Free email with personality! Over 200 domains! http://www.MyOwnEmail.com

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Fw: PWS Headless Crashes
by Peter William Lount 25 Aug '99

25 Aug '99

Hi, Well the headless server now seems to respond after a long delay (like 30 seconds) when first loading the web page. But subsequenent requests form a submit button just hang it unless I press the button twice in which case it responds instantly but with a duplicate entry (since I pressed the submit button twice!)... ;--( You can try it (if it doesn't work the first time try again and make sure to try double clicking on the "post your message" button) at this demo site http://www.zoku.net:8080/chat Anyone got any ideas about this? All the best, Peter William Lount peter(a)smalltalk.org http://www.smalltalk.org

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And the Amiga? (was Re. GEOS Lives)
by Steve Wart 25 Aug '99

25 Aug '99

This is too weird. Digging around I see that ZD is also claiming that Gateway is "quietly" developing "information applicances" based on Amiga technology. The new PC will use a Linux OS and it is not clear how much of the orginal technolgy will be retained. http://www.zdnet.com/zdnn/stories/news/0,4586,2313303,00.html I am beginning to have the sense that these ZD stories should be classified into the "I'll believe it when I see it category". With respect to the GEOS thread I started earlier, GeoWorks is not providing its SDK for anything but the Nokia platform (whatever that means -- possibly the Wal-Mart story is news to them, too). I was able to dig up the following FAQ: http://www.cis.ohio-state.edu/hypertext/faq/usenet/pcgeos-faq/part1_/faq.htm l But most of the links are broken, including the ones to the GeoWorks site. >From now on, I promise not to post anymore misinformation from ZD unless I can get a reputable third-party to back it up :-) Steve

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Re: remember to add those goodies to the Swiki!
by Peter William Lount 25 Aug '99

25 Aug '99

ENHancements ADDON GOODIES FIXing BUGs. ;--) All the best, Peter William Lount peter(a)smalltalk.org http://www.smalltalk.org

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Re: remember to add those goodies to the Swiki!
by Dwight Hughes 25 Aug '99

25 Aug '99

Bob Arning wrote: > > On Wed, 25 Aug 1999 07:16:57 -0400 "Andrew C. Greenberg" <werdna(a)gate.net> wrote: > >>Also, prefixing those announcements with [FIX], [ENH], or [ADDON] would > >>get them included automagically in the archive at > >> http://swiki.gsug.org/sqfixes > > > >Perhaps there ought to be a [GOODIE] as well? > > OTOH, I get confused by the differences between some of these. What useful kinds of ADDONs are there that do not ENHance the system? Is there a GOODIE that one does not ADDON to an existing Squeak system? And tools vs. packages leaves me in the dark. > I think I may be the guilty party that added the Tools and Packages separation on the Swiki. My vague notion was that "tools" would refer to extensions to the Squeak IDE itself, and "packages" would refer to more general applications added on top of the Squeak environment - things like mail and news readers, web servers, databases, games, .... Eh, seemed like a good idea at the time. -- Dwight

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