Squeak-dev June 2006

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149 participants
250 discussions

VM crash
by Bob.Cowdery＠CGI-Europe.com 04 Jun '06

04 Jun '06

This may help although I have a feeling it's just where it was in the execution loop. Anyway, the last crash gave the following dump and the first time I have seen a stack trace with it. Sun Jun 04 14:26:40 2006 Exception code: C0000005 Exception addr: 00419EED Access violation (read access) at 222D9300 EAX:222D9300 EBX:80000002 ECX:00000001 EDX:00000000 ESI:1228D280 EDI:1228D0CC EBP:1223A3B8 ESP:0006FBA8 EIP:00419EED EFL:00010246 FP Control: FFFF037F FP Status: FFFF4020 FP Tag: FFFFFFFF VM Version: Squeak 3.7.1 (release) from Sep 23 2004 Compiler: gcc 2.95.2 19991024 (release) Current byte code: 196 Primitive index: 0 Loaded plugins: SDRDttSpDSPPlugin 4 June 2006 (e) JPEGReadWriter2Plugin 23 September 2004 (i) SoundPlugin 23 September 2004 (i) LargeIntegers v1.3 23 September 2004 (i) SocketPlugin 23 September 2004 (i) B2DPlugin 23 September 2004 (i) Matrix2x3Plugin 23 September 2004 (i) FloatArrayPlugin 23 September 2004 (i) BitBltPlugin 23 September 2004 (i) SecurityPlugin 23 September 2004 (i) FilePlugin 23 September 2004 (i) MiscPrimitivePlugin 23 September 2004 (i) Stack dump: 304685232 EventSensor>queueEvent: 304685128 EventSensor>processEvent: 304681876 EventSensor>fetchMoreEvents 304376896 [] in EventSensor>eventTickler 304376712 BlockContext>on:do: 300511300 EventSensor>eventTickler 300511024 [] in EventSensor>installEventTickler 300511208 [] in BlockContext>newProcess ------------------------------------------- Hi all, I do hope someone can help me out here because it's a real stopper for my app. I was getting sporadic VM crashes when calling my plugin, which I have now got down to a very small subset of code to reproduce the problem. The crash dump never has a stack trace and sometimes it fails so bad no dump is produced. Essentially what I have is a 'C' method that returns and array of 4096 float values. I have taken away all the application C code and simply load and return an array, so I am quite sure it's not the C code that's breaking but somewhere in the C/Squeak interface. Here is what I have (stripped to minimum for clarity). For testing I am running this flat out in a loop. If I run 100,000 iterations I will usually but not always get a crash. Is there anything I can do to isolate this a bit further? Thanks in advance for any help. Bob The C code: ----------- void process_test(float *results) { float a[4096]; int i; float f = 0.0; for(i=0;i<4096;i++){ a[i] = f; f = f + 1.0; } memcpy((void *)results, a, 4096*sizeof(float)); } The plugin code which is translated and compiled with the C code: ---------------- test: data self export: true. self primitive: 'test' parameters:#(FloatArray). (self cCode: 'process_test(data)'). ^data. The calling code: ----------------- primTest: data <primitive: 'test' module:'SDRDttSpDSPPlugin'> Transcript show: 'Primitive Test failed'. ^ false Finally, the method I call: ------------------ test |data| data := FloatArray new: 4096. self primTest: data. ^ data. *** Confidentiality Notice *** Proprietary/Confidential Information belonging to CGI Group Inc. and its affiliates may be contained in this message. If you are not a recipient indicated or intended in this message (or responsible for delivery of this message to such person), or you think for any reason that this message may have been addressed to you in error, you may not use or copy or deliver this message to anyone else. In such case, you should destroy this message and are asked to notify the sender by reply email. *** Confidentiality Notice *** Proprietary/Confidential Information belonging to CGI Group Inc. and its affiliates may be contained in this message. If you are not a recipient indicated or intended in this message (or responsible for delivery of this message to such person), or you think for any reason that this message may have been addressed to you in error, you may not use or copy or deliver this message to anyone else. In such case, you should destroy this message and are asked to notify the sender by reply email.

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What is the most recent VM for WinXP?
by Günther Schmidt 04 Jun '06

04 Jun '06

Günther

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Re: Hobbes Emulator licensed NOT SPAM
by Wolfgang Helbig 04 Jun '06

04 Jun '06

Stef, you tried to activate me by >Cool >Wolf what about publish a MC package on squeaksource? >and automagically producing a SqueakMap entry each time you will >produce a new version. >The technology is there and cool. I know. Thank you for the invitation. Which I decline. After all 95 % of the code is from Vassily and Dan. I added one percent to make Hobbes run on a little Endian architecture. The remaining four percent went to the AltoFileStream. Remember the problems I had with the natural numbers starting with one instead of zero? Those four percent went in because I naively assumed that the image is storing the snapshot onto the alto disk. So I modified Hobbes to read the snapshot from an alto file stream instead of from a standard file stream. But when I finished the AltoFileStream I learned that the image does not at all store the snapshot file. This would be the job of the VM. (primitive 97). Which makes the AltoFileStream an exercise as instructive as useless. Probably I won't need to change Hobbes any further for my master task, which is studying the Blue Book and implementing an ST-80 VM on top of Unix and X-Window. (Don't hold your breath as I am really slow and I have no time schedule.) The Hobbes Emulator was helpful especially in finding out about the file format of the ST-80-V2-image. See http://www.ba-stuttgart.de/~helbig/st80/ImageFormat.txt By now I am looking forward to some further docs regarding the image file format which Luc and Mario promised. I do not object to someone storing it into the Squeak source repository, as long as Vassili's license is observed, someone is going to maintain it -- and someone is not me :-). Thank you all for your support. Greetings, Wolfgang -- Weniger, aber besser.

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About Rss of mantis
by stéphane ducasse 04 Jun '06

04 Jun '06

Hi I cannot read all the rss items of mantis with safari. Am I the only one ? I would like to be able to get all the flux so that I can follow bugs fixes and harvest them that way. Stef

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Re: Hobbes Emulator licensed
by Wolfgang Helbig 04 Jun '06

04 Jun '06

Dan, you wrote: >I hereby authorize it. I don't have any time until after the weekend, so put it anywhere you want until then. Afterward I shall put it on my web site, along with the APDA image which is open, and in ways better anyway. >I have the files for the APDA release, but I can't get them out until after the weekend (unless there happens to be internet in the mountains where I'm going). Please find the sources at http://www.ba-stuttgart.de/~helbig/st80/hobbes -- Weniger, aber besser.

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interpreterProxy signalSemaphoreWithIndex:
by Bruno Luca 04 Jun '06

04 Jun '06

Hello, I've seen that only UnixAioPlugin uses it (at least of internal plugins) and that 'Unix' prefix doesn't really sound good to me :). So, does #signalSemaphoreWithIndex: work on Windows and other platforms? Bye. -- www.lethalman.net - Thoughts about computer technologies

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Squeak Chat Thursday June 8th 00:00 GMT
by Ken Causey 04 Jun '06

04 Jun '06

Just a reminder that the next Squeak Chat will take place between 00:00 (Midnight) and 04:00 (4 AM) GMT Thursday June 8th, 2006. As usual we will meet in #squeak on irc.freenode.net. More information about the #squeak IRC channel can be found at http://people.squeakfoundation.org/article/7.html This is a good time to contribute to the development of Squeak by participating in the Harvesting Process. One of the main ways to contribute is by Reviewing submitted fixes and enhancements. For information about the Harvesting Process see http://minnow.cc.gatech.edu/squeak/3152 If you have the time please attend and work toward the future of Squeak. The next seven chats are scheduled for 04:00 (04:00 AM) GMT Monday June 12, 2006 08:00 (08:00 AM) GMT Friday June 16, 2006 12:00 (12:00 PM) GMT Tuesday June 20, 2006 16:00 (04:00 PM) GMT Saturday June 24, 2006 20:00 (08:00 PM) GMT Wednesday June 28, 2006 00:00 (12:00 AM) GMT Monday July 03, 2006 04:00 (04:00 AM) GMT Friday July 07, 2006

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Any network problems with WinXP and SqueakMap
by Günther Schmidt 04 Jun '06

04 Jun '06

Hi, I'm trying to pinpoint the cause of my problems with SqueakMap. I presume it's a network problem, and I used Sysinternal's Process Explorer to monitor squeak when I was trying to use SM. As before, the CPU usage started going up to 100%, but PE showed that Squeak had no open TCP/IP connections whatsoever. I did for the first couple of seconds, then CPU 100% and no open TCP/IP connections. Does anybody else experience similar problems on WinXP? Günther

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re: Win32 replacement shell recommendations
by Bill Schwab 04 Jun '06

04 Jun '06

Craig, ======================= > As this is hardly a mainstream forum, it seems reasonable to check > here for recommendations. I strongly disagree on both counts, and see no connection between them. And there are plenty of other, more effective places for that question. ======================= You might lighten up and list a few??? Bill Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bills(a)anest4.anest.ufl.edu Tel: (352) 846-1285 FAX: (352) 392-7029

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Fwd: Re: Some Cardioid Fun - beginnings of MathMorphs Plotters in 3.9
by Milan Zimmermann 04 Jun '06

04 Jun '06

A small sample of FunctionPlotters from MathMorphs in 3.9 ---------- Forwarded Message ---------- Subject: Re: Some Cardioid Fun Date: 2006 June 3 05:43 From: "Lic. Edgar J. De Cleene" <edgardec2001(a)yahoo.com.ar> To: Milan Zimmermann <milan.zimmermann(a)sympatico.ca>, Serge Stinckwich <Serge.Stinckwich(a)info.unicaen.fr> Milan Zimmermann puso en su mail : > Hi Edgar, > > so tonight I took a break from installing everything correctly (still some > of the ThetaRhoPlotters do not work, those that define the specific modes - > 4 to 7) and had some fun - look at the attachment and run this code if you > like: > > plotter := ThetaRhoPlotter new. > plotter dotSize: 3. > plotter drawSteps: 12. > > a := 10. > cardioidFunction := Function fromBlock: [:theta | 2*a*(1 + theta cos)]. > plotter addFunction: cardioidFunction. > plotter domain: (ClosedInterval from: 0 to: 2 * Float pi). > > plotter directDrawEnable: true. > plotter plot asMorph openInWorld > > (Took me a bit to "get" that ThetaRho is "parametric") > > Have a good weekend, Milan Good !! Send this to squeak list and to mathmorph list. I send the "how to" to my student and ask he take the info in http://www-groups.dcs.st-and.ac.uk/~history/Curves/Curves.html For having a really nice MathSqueak.image some day. Edgar ___________________________________________________________ 1GB gratis, Antivirus y Antispam Correo Yahoo!, el mejor correo web del mundo http://correo.yahoo.com.ar -------------------------------------------------------

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