[Vm-dev] Reproducible VM crash with excessive garbage collection

[Nicolai Hess]

2014-11-16 17:46 GMT+01:00 Max Leske <maxleske at gmail.com>:

>
> Hi.
>
> I may have discovered a bug in the PharoVM (stable and latest), which may
> have been around for at least two years (I had a very similiar situation
> about two years ago with Fuel).
>
> I have a test that fails when a particular method contains “3 timesRepeat:
> [ Smalltalk garbageCollect ]”. In order to be sure that it’ not the
> #timesRepeat message that’s causing the crash, I replaced that with
> multiple “Smalltalk garbageCollect” sends.
>
> The test I’m talking about ObsoleteTest>>testFixObsoleteSharedPools. To
> make the test crash the VM, simply add a couple of garbageCollects at the
> end of SmalltalkImage>>fixObsoleteSharedPools. I tried to come up with a
> little script to demonstrate the issue but I can only reproduce the problem
> with Nautilus (which makes me suspect that the problem is related to
> Nautilus).
>
> Steps to reproduce:
> 1. get a fresh image and  the latest vm:
> curl get.pharo.org/40+vmLastest | bash && ./pharo-ui Pharo.image
> 2. open the class browser and navigate to
> SmalltalkImage>>fixObsoleteSharedPools
> 3. Append ten “self garbageCollect” statements to the method.
> 4. navigate to ObsoleteTest>>testFixObsoleteSharedPools and click on the
> test runner icon to the left of the method name.
>
> I can reproduce this with the Mac VM (OS X 10.10) as well as with the
> linux VM (Ubuntu 12.04.1).
>
> I’ve opened an issue for this:
> https://pharo.fogbugz.com/f/cases/14478/Reproducible-VM-crash-with-excessive-garbage-collection
>
>
> Cheers,
> Max
>
>
Can not reproduce this on linux with may own vm build from an older version
(on ubuntu 10.04)

/home/nicolai/devel/pharo-vm/pharo-vm/results/pharo
NBCoInterpreter NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 uuid:
e0df6e2d-5694-40e2-8035-dc217200b424 Oct 14 2014
NBCogit NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 uuid:
e0df6e2d-5694-40e2-8035-dc217200b424 Oct 14 2014
https://github.com/pharo-project/pharo-vm.git Commit:
81b5d19917dcb78f22482a780deec48c53738396 Date: 2014-09-20 14:36:18 +0200
By: Esteban Lorenzano <estebanlm at gmail.com>

Unix built on Oct 14 2014 20:55:01 Compiler: 4.4.3
VMMaker versionString https://github.com/pharo-project/pharo-vm.git Commit:
81b5d19917dcb78f22482a780deec48c53738396 Date: 2014-09-20 14:36:18 +0200
By: Esteban Lorenzano <estebanlm at gmail.com>
NBCoInterpreter NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 uuid:
e0df6e2d-5694-40e2-8035-dc217200b424 Oct 14 2014
NBCogit NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 uuid:
e0df6e2d-5694-40e2-8035-dc217200b424 Oct 14 2014


reproducable on ubuntu 12.? 64 bit (32 bit latest vm):
---------------
/home/nicolai/Downloads/pharo-vm/pharo
NBCoInterpreter NativeBoost-CogPlugin-EstebanLorenzano.21 uuid:
4d9b9bdf-2dfa-4c0b-99eb-5b110dadc697 Nov 13 2014
NBCogit NativeBoost-CogPlugin-EstebanLorenzano.21 uuid:
4d9b9bdf-2dfa-4c0b-99eb-5b110dadc697 Nov 13 2014
https://github.com/pharo-project/pharo-vm.git Commit:
27d505ceffde98d854ed887903a2a94908637a49 Date: 2014-11-04 12:04:48 +0100
By: Esteban Lorenzano <estebanlm at gmail.com> Jenkins build #14876

Unix built on Nov 13 2014 00:43:51 Compiler: 4.6.3
VMMaker versionString https://github.com/pharo-project/pharo-vm.git Commit:
27d505ceffde98d854ed887903a2a94908637a49 Date: 2014-11-04 12:04:48 +0100
By: Esteban Lorenzano <estebanlm at gmail.com> Jenkins build #14876
NBCoInterpreter NativeBoost-CogPlugin-EstebanLorenzano.21 uuid:
4d9b9bdf-2dfa-4c0b-99eb-5b110dadc697 Nov 13 2014
NBCogit NativeBoost-CogPlugin-EstebanLorenzano.21 uuid:
4d9b9bdf-2dfa-4c0b-99eb-5b110dadc697 Nov 13 2014


both with image 40370
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