On 30 November 2012 18:27, Camillo Bruni <camillobr...@gmail.com> wrote: > uuh nasty :), also happens under 2.0 ;) > huh... unbelievable.. how such simple piece of code can do any harm? :)
> could you open an issue on the cog issue tracker with the contents of this > email? > https://code.google.com/p/cog/issues/list > > thanks > > On 2012-11-30, at 14:07, Jon Anderson <jonkander...@gmail.com> wrote: > >> Hi all, >> >> I don't post to lists often, but I thought some of you might be >> interested in these few lines of code that crash the CogVM on both >> Linux and Windows. File-in the Smalltalk code below, then evaluate >> [nil crashCogVM]. The code uses [1-1] but it could use [1+1] or >> [56+98]. I put the code on nil, but that is not important either. I >> think the important thing is that the primitive (+ or -) is evaluated >> but the result is not assigned into any variable. Also important is >> that the code is put into a loop that I assume has been JIT optimized. >> The image I used is Pharo 1.4 one-click with latest update #14459. >> This code does not crash StackVM. Have fun! - Jon. >> >> !UndefinedObject methodsFor: 'crash' stamp: 'JonKAnderson 11/29/2012 17:26'! >> crashCogVM >> " Evaluate [ >> nil crashCogVM ]" >> >> | i | >> i := 20. >> 1 to: i do: [:d | 1-1 ] >> ! ! >> > > -- Best regards, Igor Stasenko.
