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Re: How do diagnose image locks up (cpu 100%) on save?

Posted by Paul DeBruicker on Aug 22, 2013; 6:19pm
URL: https://forum.world.st/How-do-diagnose-image-locks-up-cpu-100-on-save-tp4704639p4704651.html

In this instance, that doesn't output anything.  Specifically:


$  ps -A | grep pharo
 6001 pts/0    00:00:45 pharo
$ kill -s SIGUSR1 6001
$








Mariano Martinez Peck wrote
If you run the VM from command line and you send a kill -s SIGUSR1  ... it
should display the stacktrace of the VM in the console.
See http://marianopeck.wordpress.com/2012/05/19/pharo-tips-and-tricks/
item "Send kill signal:"

hope this help.

Cheers,



On Thu, Aug 22, 2013 at 2:34 PM, Paul DeBruicker <[hidden email]> wrote:

> Hi -
>
> The plain Pharo 20619 + RFB image in my dropbox here:
> https://dl.dropboxusercontent.com/u/4460862/pharo2RFB.zip freezes when
> you save it while the RFB server is running.  The freeze occurs in the
> #snapshotPrimitive.
>
>
> This is the VM info I'm using:
>
> 3.9-7 #1 Wed Mar 13 18:22:44 CET 2013 gcc 4.4.3
> NBCoInterpreter NativeBoost-CogPlugin-EstebanLorenzano.18 uuid:
> a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013
> NBCogit NativeBoost-CogPlugin-EstebanLorenzano.18 uuid:
> a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013
> git://gitorious.org/cogvm/blessed.git Commit:
> 412abef33cbed05cf1d75329e451d71c0c6aa5a7 Date: 2013-03-13 17:48:50 +0100
> By: Esteban Lorenzano <[hidden email]> Jenkins build #14535
> Linux linux-ubuntu-10 2.6.32-38-server #83-Ubuntu SMP Wed Jan 4 11:26:59
> UTC 2012 x86_64 GNU/Linux
> plugin path: /home/paul/pharo/pharo2.0/bin [default:
> /home/paul/pharo/pharo2.0/bin/]
>
>
> How can I diagnose/fix what is going wrong?
>
>
> I'm reluctant to make it stop and start the RFB server through the
> snapshot because it will kick off all attached clients. Of which there
> is at most one and its me, so it wouldn't be too bad but its not
> desirable.
>
> It freezes whether there is a client connection or not.
>
>
> Thanks
>
> Paul
>
>


--
Mariano
http://marianopeck.wordpress.com