April 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] Help updating confs and building Pharo 1.3
by Mariano Martinez Peck April 24, 2011

April 24, 2011

Hi guys. During the last sprint and during this weekend I did a pass trying to update all Metacello configurations for Pharo 1.3. I have updated most of them. What I need is that people: - update all the confs that are not yet updated to work on Pharo 1.3 - test them - report if there are problems. We cannot wait the last minute for PharoDev, it has to be build and test now. Hudson cannot build right now because there is another problem, but you can test your packages/projects anyway. Cheers -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] UndefinedObject(Object)>>doesNotUnderstand: #findNextHandlerContextStarting
by Mariano Martinez Peck April 24, 2011

April 24, 2011

grrrr I don't know what is happening. I am building a PharoDev 1.3 and at the end, I do: Undeclared removeUnreferencedKeys but this throws an error that I attach. It is a big loop of such error. The progress bar is showing "Clean up in DebuggerMethodMap" In addition Undeclared ->>>> a Dictionary(#NoSuchElementError->nil ) I checked http://code.google.com/p/pharo/issues/detail?id=4043 but there is no such method. Now...if I execute Undeclared removeUnreferencedKeys again, it works. The bad news is that this prevents the PharoDev 1.3 to be build.... I have no clue of what can be happening, but the only way I found so far to reproduce it is to: Gofer new squeaksource: 'PharoTaskForces'; pacakge: 'ConfigurationOfPharo'; load. And then: (ConfigurationOfPharo project version: '1.3-beta') load -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] Welcome Workspace why not opened?
by Mariano Martinez Peck April 24, 2011

April 24, 2011

Hi. DEVImageWorkspaces class >> openWelcomeWorkspace now looks like this: SystemVersion current minor = 3 ifTrue: [^self]. "Workspace API chagend. To be Fixed" self newWorkspaceWithContents: self welcomeWorkspaceText title: 'Welcome to Pharo' position: 50@120 extent: 800 @ 500 so...of course in Pharo 1.3 it is just answring self. But in fact, the second part, that is, self newWorkspaceWithContents: self welcomeWorkspaceText title: 'Welcome to Pharo' position: 50@120 extent: 800 @ 500 is working correclty. So I don't understand the comment "Workspace API chagend. To be Fixed". What has changed if in fact the other lines work ok ? and even more, why we have that if: instead of a self deprecated: ? So...what should I do ? revert it to openWelcomeWorkspace self newWorkspaceWithContents: self welcomeWorkspaceText title: 'Welcome to Pharo' position: 50@120 extent: 800 @ 500 or change something in th workspace API ? Thanks -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] ScriptManager has the same icon as Transcript
by Mariano Martinez Peck April 24, 2011

April 24, 2011

so it is quite confusing... Torsten can we update the icon of the ScriptManager? Cheers -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] Error while typing in a Workspace with OCompletion
by Mariano Martinez Peck April 24, 2011

April 24, 2011

Hi. If I take a PharoCore 1.3 and I evaluate: ConfigurationOfOCompletion project lastVersion load Then I open a workspace and WITHOUT doing a click on in (I mean, without giving it the focus), and I tyoe something, I get a 'subscript is out of bounds: 1' I attach PharoDebug.log Thanks -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] is there a way to know whether an object is registered to an announcer?
by StÃ©phane Ducasse April 24, 2011

April 24, 2011

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[Pharo-project] curl / http request
by Camillo Bruni April 24, 2011

April 24, 2011

I am too dumb and there is too little documentation which is hard to find :). So can anyone tell me how I do the following bash thingy in pharo? curl $URL --data-binary $SOME_FILE -H 'Content-type:application/json' I don't manage to get this working properly. I guess HTTPSocket is the class to use... thanks a lot camillo

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[Pharo-project] Fwd: [Vm-dev] Re: out of memory - cog on windows
by Mariano Martinez Peck April 24, 2011

April 24, 2011

---------- Forwarded message ---------- From: Andreas Raab <andreas.raab(a)gmx.de> Date: Fri, Apr 22, 2011 at 3:01 PM Subject: Re: [Vm-dev] Re: [Pharo-project] out of memory - cog on windows To: vm-dev(a)lists.squeakfoundation.org FWIW, the reason for the 512MB limit has to do with Windows memory layout. When you're running applications that load dynamic libraries (directly or indirectly such as when using ODBC which loads further DLLs) Windows needs (sometimes a lot of) address space to map these DLLs in order to load them[*]. When the VM starts it grabs MAX_VIRTUAL_MEMORY from the OS which will consequently not be available to map DLLs into. We have found that depending on the libraries in use and depending on the overall system utilization, loading DLLs would fail seemingly "at random" which, after further investigation, we were able to track to reserving too much address space upfront. We were able to show experimentally, that changing the limit from 1GB to 512MB would on some machines make all the difference. [*] This is true in particular for libraries that create more threads as the default Windows policy is to create threads with the stack size of the application executable. Thus a 1MB default stack in the application will by default create all further threads to be allocated with a 1MB stack size. Of course all of this is subject to various other conditions. In the end we concluded that 512MB is a reasonable size for most apps and with 512MB we've never seen these random failures. You can increase the limit by recompiling the VM, but if you ship your app in diverse environments you should be aware of the potential issues. Cheers, - Andreas On 4/21/2011 22:44, Alain_Rastoul wrote: Apparently, the vm allocates MAX_VIRTUAL_MEMORY and reduces by steps of 128M until it succeeds. so I suppose it could be possible to allocate 2Gb and see how it runs on a 1Gb system and if this is not too much stress for the system (thinking of the pagefile) ? Tudor is your vm a cog or non cog vm ? "Mariano Martinez Peck" <marianopeck(a)gmail.com> a Ã©crit dans le message de news: BANLkTi=Tved13_KL7quOzemOXPnCcfWw+g(a)mail.gmail.com... ------------------------------ On Thu, Apr 21, 2011 at 10:21 PM, Tudor Girba <tudor.girba(a)gmail.com> wrote: > Hi, > > Should I to understand that the only way to enable more memory is to > recompile the VM? Does that mean that there is no way to pass this > information as a parameter like we can on Mac? > > As far as I know you can pass a parameter, but even so, it won't be able to allocate more than 512MB. I can compile the VM for you with this change in 5 minutes. But I am not sure that such simple code would make it work. I think such limit is there because of something. Otherwise, it sounds stupid imposing a limit just because. The problem is that I cannot recompile the VM because I have no access to a > Windows machine. Is there one available that provides more memory? > > I don't think so, but start cc'ing the VM mailing list. You'd probably receive more help. Cheers Mariano > Cheers, > Doru > > > On 21 Apr 2011, at 22:09, Alain_Rastoul wrote: > > > Hi Tudor, > > > > There is a constant in sqWin32Alloc.h (platforms\win32\vm) : > > #define MAX_VIRTUAL_MEMORY 512*1024*1024 > > you can change it to whatever you want and rebuild the vm, > > for exzmple give all the available memory less 256 M . > > > > HTH > > > > Regards > > Alain > > > > "Tudor Girba" <tudor.girba(a)gmail.com> a Ã©crit > > dans le message de news: 03B9389F-C719-44D0-B106-2AC78B120F56(a)gmail.com > ... > > Hi, > > > > We have no specific startUp: methods in Moose. In any case, the issue > with > > opening the image does not seem to be related to startUp:. > > > > Is it really true that the Cog VM is limited to 512MB of memory? > > > > Cheers, > > Doru > > > > > > On 21 Apr 2011, at 14:27, Luc Fabresse wrote: > > > >> Hi Doru, > >> > >> 2011/4/21 Tudor Girba > >> <tudor.girba(a)gmail.com> > >> Hi, > >> > >> > >> > >> On Apr 21, 2011, at 14:06, Mariano Martinez Peck > >> <marianopeck(a)gmail.com> wrote: > >> > >>> > >>> > >>> On Thu, Apr 21, 2011 at 1:58 PM, Tudor Girba > >>> <tudor.girba(a)gmail.com> wrote: > >>>> Hi again, > >>>> > >>>> I did not say what the problem was :). The problem was that when > >>>> opening the image on Windows, he got a Space is low message and the > >>>> image was not usable (see attachment). > >>> > >>> That's weird. Does moose have something on the startup list? > something > >>> that can be bothering there? > >> > >> Not that I know of. Is there a way to check this? > >> > >> Classes should be registered using Smalltlak addToStartUpList: aClass > >> Then aClass class>>#startUp: is executed at startup. > >> So implementors of #startUp: on Moose classes should give you the > answer. > >> > >> #Luc > >> > >> > >> Actually, using exactly the same process some days ago he produced an > >> image of 190MB. This one works just fine on Windows. The only difference > >> between the two is the size of the loaded data. > >> > >> It would be really bad news if the Windows vm would be so severely > limited > >> in terms of memory. > >> > >> Cheers, > >> Doru > >> > >> > >>> > >>> On Mac it worked just fine. > >>>> > >>>> Cheers, > >>>> Doru > >>>> > >>>> > >>> > >>>> > >>>> > >>>> > >>>> On 21 Apr 2011, at 12:52, Tudor Girba wrote: > >>>> > >>>>> Hi, > >>>>> > >>>>> I received a question from someone running a 200MB image on Windows > >>>>> using Cog 2361. > >>>>> > >>>>> If I open the image on Mac, it works just fine. Unfortunately, I do > >>>>> not have a Windows machine around, and I cannot test but I believe it > >>>>> should be solvable by increasing the allocated memory. > >>>>> > >>>>> On Mac, I would run it with: ./Croquet -memory 1500m > >>>>> > >>>>> Can anyone help me with the right incantation for Windows? > >>>>> > >>>>> Cheers, > >>>>> Doru > >>>>> > >>>>> > >>>>> -- > >>>>> www.tudorgirba.com > >>>>> > >>>>> "What we can governs what we wish." > >>>>> > >>>>> > >>>>> > >>>>> <Space is low.png> > >>>> > >>>> -- > >>>> www.tudorgirba.com > >>>> > >>>> "Yesterday is a fact. > >>>> Tomorrow is a possibility. > >>>> Today is a challenge." > >>>> > >>>> > >>>> > >>> > >>> > >>> > >>> > >>> -- > >>> Mariano > >>> http://marianopeck.wordpress.com > >>> > >> > > > > -- > > www.tudorgirba.com > > > > "Beauty is where we see it." > > > > > > > > > > > > > > > > > > -- > www.tudorgirba.com > > "If you interrupt the barber while he is cutting your hair, > you will end up with a messy haircut." > > > -- Mariano http://marianopeck.wordpress.com -- Mariano http://marianopeck.wordpress.com

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April 23, 2011

with manuel oriol we started to play with the idea of a randomTester in Pharo. It poses a lot of questions. Now doing the first experiments, I found an instance of point (nil@nil) (besides reciprocal broken on Point (0@0) and (Point allInstances select: [:each | each x isNil]) first pointersTo points me to recreateSpecialObjectsArray I looked into the literals and others and I could not find. Each time I execute Smalltalk recreateSpecialObjectsArray I get a new nil@nil objects.... but forcing a GC garbage them. But I still have this nil@nil object around. Does anybody have an idea from where nil@nil could come from? Stef

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April 23, 2011

Fernando I think that we should rollback the transcript. because this is really annoying that we cannot use the transcript: copy and paste execute an expression there. May be this is better to improve the ThreadSafeTranscript. The new one looks like a regression and I'm quite sure people will not like it. So this was a good try but we should recognise when stuff do not work as good as we wanted. Stef

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