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

Posted by Mariano Martinez Peck on Aug 22, 2013; 5:55pm
URL: https://forum.world.st/How-do-diagnose-image-locks-up-cpu-100-on-save-tp4704639p4704643.html

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