January 2016 - Pharo-dev - lists.pharo.org

Can't gdb VM crash
by Mariano Martinez Peck Jan. 16, 2016

Jan. 16, 2016

Hi guys, I build a Spur VM for debug, I tried to run an image that is crashing me on startup but all I get from gdb is: [Inferior 1 (process 1358) exited with code 01] (gdb) call printAllStacks() You can't do that without a process to debug. mmm I was always able to see stack traces. No I cannot do anything. Any ideas what could be wrong? I have no clue why it is failing at startup and I need to know it. Thanks in advance, -- Mariano http://marianopeck.wordpress.com

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How can we flush the remembered expressions of Playground?
by stepharo Jan. 15, 2016

Jan. 15, 2016

Because when I turn videos I want to control the starting state of the system.... Then how do I reset the binding list? I could not find a menu entry. I found the resetBindings but it is not simple to grab the correct object. Stef

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Powerful ARM server
by Ben Coman Jan. 15, 2016

Jan. 15, 2016

This might make a good CI server for ARM, or ARM based Pharo cloud. http://hothardware.com/news/amd-unveils-64-bit-arm-based-opteron-a1100-soc-… cheers -ben

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Re: [Pharo-dev] [Pharo-users] [ANN] OSSubprocess first milestone
by Mariano Martinez Peck Jan. 15, 2016

Jan. 15, 2016

Luc, Damien, et all. I implemented the kind of API Luc suggested, which was a great idea. I took also his API to answer Damien question of could we do a "tail -f" example. So I made a little example where I run "tail -f system.log" and I keep a Playground updated with the stdout :) Here is the video: https://dl.dropboxusercontent.com/u/6980943/tailExample.mov Let me know what do you think. Cheers, On Fri, Jan 15, 2016 at 10:51 AM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > >> >> defaultReadStreamCreationBlock: [ process >> createTempFileToBeUsedAsReadStreamOn: '/tmp' ]; >> >> In the readme, the piece of code containing that is a bit suspicious >> because it depends on the fact that the block is evaluated after the >> variable 'process' is assigned. >> > > Thanks, fixed! > I always hated the instance side nature of those methods, so I moved them > to class side. > > > > >> -- >> Damien Cassou >> http://damiencassou.seasidehosting.st >> >> "Success is the ability to go from one failure to another without >> losing enthusiasm." --Winston Churchill >> >> > > > -- > Mariano > http://marianopeck.wordpress.com > -- Mariano http://marianopeck.wordpress.com

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Package loader question
by Trussardi Dario Romano Jan. 15, 2016

Jan. 15, 2016

Ciao, i have some packages with some class definition. Now the package1 define Class1 and Class2 with some reference to classA and classB defined into pachageA. packageA other hand, have some reference to class1 and class2. Now my question is: i can load the package1 and packageA without other considerations, leaving the system to resolve references as classes are loaded? Thanks for any considerations, Dario

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[IMPORTANT] Starting migration to Spur VM
by Esteban Lorenzano Jan. 15, 2016

Jan. 15, 2016

We will start migration to Spur today. To complete it, we will require some time, specially to adapt the CI and check everything is ok. Spur will allow us to do a big step forward in Pharo development, in the concrete you will see it immediately for this: - We have noticed a speed increment of 100% in tiny benchmarks (and according to Eliot, it will be at least 35% in general on the system). - No more GC stops (noticeable when running large systems) - We will be able to scale our systems up to 2G memory consumption without loosing performance. But, this will have some drawbacks in the first times: 1) VM will not be compatible between versions anymore: Pharo 5.0 will have a Pharo Spur VM associated (and they are not compatible). - There WILL NOT be a "non-spur" version of Pharo 5.0. Once completed the transitions, this will be the only one. 2) NativeBoost-FFI implementation has been replaced with a new implementation who relies in ThreadedFFIPlugin and IA32Plugin. While we worked a lot to do this transition as painless as possible and we achieve a good level of backward compatibility (most uses of #nbCall: should work out of the box), there are some problems we cannot solve: - there are some stuff not possible to compatibilise, notably: - Structures now need to inherit from FFIExternalStructure - Arrays now are now shadowed - in general is a bit slower (impossible to compete with ASM) but in general is not perceptible. - THERE WILL BE BUGS AND NON-IMPLEMENTED FEATURES: Current implementation is validated with Athens and even Roassal was working, but of course that does not covers all cases. 2.1) ASMJIT will be removed from system and put in a separated packages. NOTE: There will be a blog post explaining FFI-NB architecture during the week. 3) There are more or less 70 new failing tests, some of them important than we need to fix as soon as possible. Please, please, please, help us with them :) 4) In general we foresee the system will became unstable some weeks, before it gets back to normal. Please be patient. 5) You will need to adapt your Pharo 5.0 related apps and CI processes (to take care about new VM). Some programs will stop work at all (for example, I think Pharo-launcher will need to be adapted).

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[pharo-project/pharo-core]
by GitHub Jan. 15, 2016

Jan. 15, 2016

Branch: refs/tags/50528 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] 600ec5: 50528
by GitHub Jan. 15, 2016

Jan. 15, 2016

Branch: refs/heads/5.0 Home: https://github.com/pharo-project/pharo-core Commit: 600ec593e3899e60ae0faa71728ce5aef839b062 https://github.com/pharo-project/pharo-core/commit/600ec593e3899e60ae0faa71… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2016-01-15 (Fri, 15 Jan 2016) Changed paths: M Nautilus.package/NautilusUI.class/instance/private/updatePackageGroupAndClassList.st M Rubric.package/RubScrolledTextMorph.class/instance/model protocol/drawHighlightsOn_.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50527.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50528.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50527.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50528.st M ScriptLoader50.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Spec-Core.package/extension/ToolDockingBarMorph/instance/buildButtonFor_.st Log Message: ----------- 50528 17388 OSEnvironment current returns Unix environment on Windows https://pharo.fogbugz.com/f/cases/17388 17201 Marking Diffs broken in Pharo5 https://pharo.fogbugz.com/f/cases/17201 16488 Dropping a class from one browser to another package in another browser updates selected package+class in both https://pharo.fogbugz.com/f/cases/16488 17207 Spec (Toolbar)Menu buttons shouldnt look active by default https://pharo.fogbugz.com/f/cases/17207 http://files.pharo.org/image/50/50528.zip

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[ANN] OSSubprocess first milestone
by Mariano Martinez Peck Jan. 15, 2016

Jan. 15, 2016

Dear all, I am happy to tell you I have a first prototype of the tool for executing OS processes: https://github.com/marianopeck/OSSubprocess As I said many times, the main idea was to be as much as possible FFI-based, only for executing OS commands and, from my point of view, a better end-user API. Also, as for the first step, I had to focus on Linux/OSX. I would like to thank Pharo Consortium for the sponsor of this development effort. Here is the first milestone! There are many things on my to-do but I think the code is ready for some usage, testing, code review and feedback! All classes and all methods have comments and I have quite some unit tests. All tests are green in my OSX and a CentOS box. *Important: you CANNOT have OSProcess installed in the same image as OSSubprocess. This is because I am reusing his SIGCHLD handler and for the time being both cannot coexist. * Keep in mind that the tool may be unstable and that MAY mean a VM crash. So use with care, mostly the first time. If all tests passes, then there are much less chances of something going bad. Important disclaimer: my tool (OSSubproccess from now onward) is HIGHLY influenced by a subset of the OSProcess project. There are parts which I even simply copied and adapted them (OSSPipe, OSSAttachableStream, OSSUnixProcessExitStatus). Other parts, I took them as inspiration (the idea of ThisOSProcess representing the VM process, the child watcher, and many others). In addition, I AM STILL USING (maybe as a first step?) some of the OSProcess PLUGIN (not OSProcess image side), such as the SIGCHLD handler or the creation of pipes. In github url you have all the documentation of the project, included how to install it and use it. *Finally, if you test it in a OS different than OSX and CentOS please share with me the results (about the tests).* Tomorrow the ConfigurationOf should also appear in the Catalog of Pharo 5.0. Any feedback is appreciated. Best, -- Mariano http://marianopeck.wordpress.com

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spotter much slower (GTools 3.6)
by Nicolai Hess Jan. 15, 2016

Jan. 15, 2016

since pharo 50524 spotter is much slower. Most probably related to search results from classes with many subclasses Morph / Object / Error / Announcement. For example, search for Announcement and dive into the result for the Announcement class. It takes about ~ 10 seconds to build the result page (instance methods / super instance methods....) Testcase GTSpotterStepTest>>timeClassTest:aClassName [ self basicSearch:aClassName ] timeToRun logCr. "Pharo 50523" timeClassTest:'Announcement' 0:00:00:00.539 timeClassTest:'Morph' 0:00:00:01.448 "Pharo 50524" timeClassTest:'Announcement' 0:00:00:06.936 timeClassTest:'Morph' 0:00:00:49.044 Or open SUnit Testrunner and run tests for package: GT-Tests-Spotter-Scripting nicolai

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