Cog on linux (was: Re: [squeak-dev] Re: UI lockup in Squeak 4.1)

Chris Muller asqueaker at gmail.com
Wed Jul 14 17:22:04 UTC 2010


I followed these instructions to the letter, and get the same result I
got a few weeks ago.  I posted a question then, but no responses.  May
I try again?

Everything seems to go just fine throughout these build instructions.
For the final step, I put it in /usr/local/lib.

    make install prefix=/usr/local/lib/squeak

and I made sure /usr/local/lib/squeak exists before doing the make install.

The make install appears to work fine, and I am able to see squeak -version:

$ squeak -version
3.9-7 #1 Wed Jul 14 12:07:56 CDT 2010 gcc 4.3.3
Croquet Closure Cog VM [CoInterpreter VMMaker-oscog.20]
Linux chrisT60p 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59
UTC 2009 i686 GNU/Linux
plugin path: /opt/4dst/thirdparty/squeak/lib/squeak/3.9-7/ [default:
/opt/4dst/thirdparty/squeak/lib/squeak/3.9-7/]

However, when I try to launch an image:

  squeak my.image

The image does not launch and I get the following:

    could not find display driver vm-display-X11; either:
      - check that /usr/local/lib/squeak/3.9-7//vm-display-X11.so
exists, or
      - use the '-plugins <path>' option to tell me where it is, or
      - remove DISPLAY from your environment.

notice the double-slash in reference to the plugins location.  Perhaps
that's the problem, but what's the correct solution?

Any advice is greatly appreciated..

 - Chris



On Tue, Jul 13, 2010 at 4:04 PM, Levente Uzonyi <leves at elte.hu> wrote:
> On Tue, 13 Jul 2010, Rob Withers wrote:
>
>> Thanks Levente.  Unfortunately it did not work:
>>
>> ./lib/squeak/3.9-7/squeak: /lib/libc.so.6: version `GLIBC_2.11' not found
>> (required by ./lib/squeak/3.9-7/squeak)
>
> Seems like you have to build it yourself. Fortunately it's very easy, since
> Eliot commits the generated sources to the svn repo. So you can build a
> CogVM/StackVM without VMMaker. Here is how:
>
> "How to build the Cog Croquet VM on Unix
> -------------------------------
> 1. Install the tools (gcc, X11-devel, etc (e.g. libpng, libX11 & libxt
> source))
> 2. Check out the following sources from svn (if you haven't already - if
> you're
>   reading this in unixbuild its likely you've already got the sources)
>     svn co http://www.squeakvm.org/svn/squeak/branches/Cog/platforms
>     svn co http://www.squeakvm.org/svn/squeak/branches/Cog/src
>     svn co http://www.squeakvm.org/svn/squeak/branches/Cog/unixbuild
> 3. Open a shell, cd into the unixbuild/bld directory and execute
>     ../../platforms/unix/config/configure CFLAGS="-g -O2 -msse2
> -D_GNU_SOURCE -DNDEBUG -DITIMER_HEARTBEAT=1 -DNO_VM_PROFILE=1 -DCOGMTVM=0"
> LIBS=-lpthread
>     make install prefix=WhereYouWantTheVmToGo
> 4. At the end of it you'll get a new VM in the path provided via -prefix"
>
>
> Levente
>
>>
>> Rob
>>
>>
>>
>> ________________________________
>> From: Levente Uzonyi <leves at elte.hu>
>> To: The general-purpose Squeak developers list
>> <squeak-dev at lists.squeakfoundation.org>
>> Sent: Tue, July 13, 2010 3:21:43 PM
>> Subject: Re: Cog on linux (was: Re: [squeak-dev] Re: UI lockup in Squeak
>> 4.1)
>>
>> On Tue, 13 Jul 2010, Rob Withers wrote:
>>
>>> --------------------------------------------------
>>> From: "Levente Uzonyi" <leves at elte.hu>
>>> Sent: Tuesday, July 13, 2010 12:46 PM
>>> To: "The general-purpose Squeak developers list"
>>> <squeak-dev at lists.squeakfoundation.org>
>>> Subject: Cog on linux (was: Re: [squeak-dev] Re: UI lockup in Squeak 4.1)
>>>
>>>> On Tue, 13 Jul 2010, Rob Withers wrote:
>>>>
>>>>>
>>>>> --------------------------------------------------
>>>>> From: "Andreas Raab" <andreas.raab at gmx.de>
>>>>> Sent: Tuesday, July 13, 2010 11:29 AM
>>>>> To: "The general-purpose Squeak developers list"
>>>>> <squeak-dev at lists.squeakfoundation.org>
>>>>> Subject: [squeak-dev] Re: UI lockup in Squeak 4.1
>>>>>
>>>>>> On 7/13/2010 6:39 AM, Rob Withers wrote:
>>>>>>>
>>>>>>> The low-space watcher is running, at least before the problem starts.
>>>>>>> I
>>>>>>> do eventually run out of memory, but the uninterruptable state
>>>>>>> happens
>>>>>>> before this.
>>>>>>
>>>>>> In which case you want to do the following:
>>>>>> * Launch your app and wait until it's in the "growing state"
>>>>>> * Hit F2 and from the VM's preference menu choose "Debug" and then
>>>>>> "Print all processes"
>>>>>>
>>>>>> This will dump a list of all the call stacks of all processes. One of
>>>>>> them is the culprit consuming memory and you'll probably be able to tell
>>>>>> quickly from just looking at it (if not, you can email the output here but
>>>>>> it typically takes a domain expert to understand what's going wrong).
>>>>>>
>>>>>
>>>>> Thanks for this pointer, Andreas.
>>>>>
>>>>> This time it was a Cog VM which spasmed, which I use for my client
>>>>> (Squeak 4.1 for server for use with linux vm - I have no ability to compile
>>>>> a linux Cog vm:  would love if someone posted one that could be launched
>>>>> headless for my webhost).
>>>>
>>>> Cog works, but i think you're trying to use the -headless switch, which
>>>> (is deprecated) and tells the vm to use the X11 display, but with no window.
>>>> Servers usually don't have X11, so it won't work. You better use
>>>> -vm-display-null (and -vm-sound-null). Try squeak --help for further useful
>>>> options (like tuning Cog).
>>>>
>>>
>>> I am trying to use the -headless switch.  Good to know it is deprecated.
>>>  So you happen to have a Cog for linux binary (version 17 - 20), which I
>>> could use?
>>
>> I have one, but I'm not sure it will work on your server. You can find it
>> here: http://leves.web.elte.hu/squeak/cog17.tar.gz . It's built on ubuntu
>> 10.04 and is optimized for core2.
>>
>>
>> Levente
>>
>>>
>>> Thanks,
>>> Rob
>>>
>>>>
>>>> Levente
>>>>
>>>>>
>>>>> It started running at 100% and I did your F2 -> Debug Options -> Print
>>>>> all processes.  It started dumping a LOT to the Debug Console, then it
>>>>> froze, still at 100%, but no increase in memory now and it went (Not
>>>>> Responding) and greyed out the window.
>>>>>
>>>>> Luckily, I was able to see enough of the stack that was causing
>>>>> problems. It is infinitely looping in this method:
>>>>>
>>>>> LanguageEnvironment class>>#localeID: localeID
>>>>> ^self knownEnvironments at: localeID ifAbsent: [self localeID:
>>>>> (LocaleID isoLanguage: 'en')]
>>>>>
>>>>> This has nothing to do with my code, except I must be calling something
>>>>> that enters this loop.  It happens in both Cog (Windows) and Squeak4.1
>>>>> (Linux <headless> and Windows).
>>>>>
>>>>> Not sure how to fix this.
>>>>>
>>>>> Rob
>>>>>
>>>>>> Cheers,
>>>>>>  - Andreas
>>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>
>



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