[Vm-dev] Re: [Pharo-project] fast #becomeForward: crashes without PharoV10.sources

[Igor Stasenko]

On 26 February 2013 19:20, Eliot Miranda <eliot.miranda at gmail.com> wrote:
>
>
>
> On Tue, Feb 26, 2013 at 4:13 AM, Igor Stasenko <siguctua at gmail.com> wrote:
>>
>> we should reafctor the code for changing the method's trailer (source
>> pointer) to
>> avoid using #become: at all.
>> this won't deal with VM bug per se, but at least prevent it from triggering.
>
>
> No, that makes little sense.  Instead provide me with a reproducible case and I'll fix it quickly.  I fixed the case form last week in one day.  Become: should work, but I can't fix things if I can't reproduce the bugs.  So please take the time to produce an image that crashes from start-up.
>

well, i didn't said that we should not look for a way how to ditch that issue.
but we have little problem with it: it is very hard to reproduce.

look from another angle: if things will get stable by not using become, then:
 a) we can release new version of pharo earlier
 b) it narrows down the field of search for bug

but sure thing, i am with you, and even more..
for things like that we should find a way to write a deterministic
test case which fails / crashes on old VMs
and works on fixed ones..
because without such tests, it leaves a lot of uncertainty, like: did
your latest fixes to become actually fixed anything?
 or they introduced yet another regression?

>>
>>
>> On 25 February 2013 23:26, Esteban Lorenzano <estebanlm at gmail.com> wrote:
>> > he is talking about some chrashes that happens fast, when you do become :)
>> >
>> > nothing about "fast become"
>> >
>> > On Feb 25, 2013, at 10:26 PM, Mariano Martinez Peck <marianopeck at gmail.com>
>> > wrote:
>> >
>> > mmm what do you mean by "fast becomeForward:" ?
>> >
>> > On Mon, Feb 25, 2013 at 1:01 PM, Camillo Bruni <camillobruni at gmail.com>
>> > wrote:
>> >>
>> >> While setting up the new multi platform VM tests I saw that the tests fail
>> >> extremely quickly
>> >> when there are not PharoV10.sources available.
>> >>
>> >> It is still our know #becomeForward: but on CompiledMethods, but I just
>> >> want to share that.
>> >
>> >
>> >
>> >
>> > --
>> > Mariano
>> > http://marianopeck.wordpress.com
>> >
>> >
>>
>>
>>
>> --
>> Best regards,
>> Igor Stasenko.
>>
>
>
>
> --
> best,
> Eliot
>



-- 
Best regards,
Igor Stasenko.