[Vm-dev] [Pharo-dev] Repeatable VM crash

[Esteban Lorenzano]

> On 04 Jan 2016, at 21:22, Mariano Martinez Peck <marianopeck at gmail.com> wrote:
> 
> 
> 
> On Sun, Dec 7, 2014 at 3:27 PM, Eliot Miranda <eliot.miranda at gmail.com <mailto:eliot.miranda at gmail.com>> wrote:
> Hi Mariano,
> 
> On Dec 7, 2014, at 10:21 AM, Mariano Martinez Peck <marianopeck at gmail.com <mailto:marianopeck at gmail.com>> wrote:
> 
>> 
>> 
>> On Sun, Dec 7, 2014 at 3:09 PM, Eliot Miranda <eliot.miranda at gmail.com <mailto:eliot.miranda at gmail.com>> wrote:
>> Hi Hilaire,
>> 
>> 
>> On Dec 7, 2014, at 12:35 AM, Hilaire <hilaire at drgeo.eu <mailto:hilaire at drgeo.eu>> wrote:
>> 
>> > I download this one
>> > http://www.mirandabanda.org/files/Cog/VM/VM.r3164/coglinux-14.48.3164.tgz <http://www.mirandabanda.org/files/Cog/VM/VM.r3164/coglinux-14.48.3164.tgz>
>> >
>> > and the crash is still there. Attached crash dump.
>> 
>> different bugs.  The 3164 VMs fix a 32-bit Spur bug.  Your image is showing a bug in Cog that looks to be to do with the decompression primitive.  I haven't had time to look at it deeply yet but can see it and should be able to fix it soon.
>> 
>> You mean GZip stuff?  Because I have found a similar issue years ago: http://forum.world.st/Re-Pharo-project-GZipWriteStream-crashing-my-VM-when-serializing-td4177725.html <http://forum.world.st/Re-Pharo-project-GZipWriteStream-crashing-my-VM-when-serializing-td4177725.html>
> No.  That bug got fixed recently.  This is a bug in the custom huffman-ciding bitmap decompression routine (selector begins with "decompress") that's compiled to a primitive.
> 
> 
> 
> Hi,
> 
> It seems Stephan is seeing this bug again. 
> Eliot, is there a chance that the fix was not finally integrated or something?

vm build is at least 1 month old (spur one). Cog vm is at least 6 months old (yet some stuff has been integrated into it, but not much). 
vm development is moving to spur branch so changes will be there (and not old cog branch) but to resume vm build we need to fix a bug in opal compiler (in spur context): https://pharo.fogbugz.com/f/cases/17251 <https://pharo.fogbugz.com/f/cases/17251>

So… probably, that bug fix is not present yet in the vm (I cannot be sure, but probably)

Esteban

> 
> 
>  
>>  
>> 
>> >
>> > Thanks
>> >
>> > Hilaire
>> >
>> > Le 06/12/2014 22:57, Eliot Miranda a écrit :
>> >> Hi Esteban,
>> >>
>> >>    plausibly the fix to the latest VM might fix your crash.  You might
>> >> test?  Fingers crossed.
>> >>
>> >> On Fri, Dec 5, 2014 at 11:26 PM, Esteban Lorenzano <estebanlm at gmail.com <mailto:estebanlm at gmail.com>
>> >> <mailto:estebanlm at gmail.com <mailto:estebanlm at gmail.com>>> wrote:
>> >>
>> >>    yes, but the first step is to be sure you have the latest vm version :)
>> >>
>> >>    Esteban
>> >
>> >
>> > --
>> > Dr. Geo - http://drgeo.eu <http://drgeo.eu/>
>> > iStoa - http://istoa.drgeo.eu <http://istoa.drgeo.eu/>
>> > <crash.dmp>
>> 
>> 
>> 
>> 
>> -- 
>> Mariano
>> http://marianopeck.wordpress.com <http://marianopeck.wordpress.com/>
> 
> 
> 
> -- 
> Mariano
> http://marianopeck.wordpress.com <http://marianopeck.wordpress.com/>

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