[Pharo-dev] How do diagnose image locks up (cpu 100%) on save?

Paul DeBruicker pdebruic at gmail.com
Thu Aug 22 13:34:33 EDT 2013


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 <estebanlm at gmail.com> 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




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