[Pharo-dev] vm crash when using rairedTo: with fractions

Andrei Chis chisvasileandrei at gmail.com
Thu Aug 10 06:02:51 EDT 2017


Hi,

I was executing this code  '(2009/2000) ** (3958333/100000)' with the
Pharo6.1 distribution and the vm crashed with she stack attached below.
Tried it on both mac and windows 10.
Seems that #raisedTo: has a special case for fractions that ends up calling
#nthRoot: like '2009 nthRoot: 100000' leading to the crash.

Cheers,
Andrei


0xaddeac M LargePositiveInteger(Integer)>quo: 0x314093e8: a(n)
LargePositiveInteger
0xaddec8 M LargePositiveInteger(LargeInteger)>quo: 0x314093e8: a(n)
LargePositiveInteger
0xaddee8 M LargePositiveInteger(Integer)>// 0x314093e8: a(n)
LargePositiveInteger
0xaddf04 M LargePositiveInteger(LargeInteger)>// 0x314093e8: a(n)
LargePositiveInteger
0xaddf34 I LargePositiveInteger(Integer)>nthRootTruncated: 0x30cc8350: a(n)
LargePositiveInteger
0xaddf5c I LargePositiveInteger(Integer)>nthRootRounded: 0x30cc8350: a(n)
LargePositiveInteger
0xaddf88 I SmallInteger(Integer)>nthRoot: 0xfb3=2009
0xaddfb4 I Fraction>nthRoot: 0x4f9a940: a(n) Fraction
0xaddfd8 I Fraction(Number)>raisedTo: 0x4f9a940: a(n) Fraction
0xaddffc I Fraction(Number)>** 0x4f9a940: a(n) Fraction
0xade018 M UndefinedObject>DoIt 0x5fe5d00: a(n) UndefinedObject
0xade048 I OpalCompiler>evaluate 0x4f9a998: a(n) OpalCompiler
0xade074 I RubSmalltalkEditor>evaluate:andDo: 0x305e5878: a(n)
RubSmalltalkEditor
0xade09c I RubSmalltalkEditor>highlightEvaluateAndDo: 0x305e5878: a(n)
RubSmalltalkEditor
0xade0b8 M
GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>popupPrint
0x3062fdc8: a(n) GLMMorphicPharoScri
enderer
0xade0d8 I MorphicAlarm(MessageSend)>value 0x4f9ab20: a(n) MorphicAlarm
0xade0f4 M MorphicAlarm>value: 0x4f9ab20: a(n) MorphicAlarm
0xade114 M WorldState>triggerAlarmsBefore: 0x71bb5e0: a(n) WorldState
0xade140 M WorldState>runLocalStepMethodsIn: 0x71bb5e0: a(n) WorldState
0xade164 M WorldState>runStepMethodsIn: 0x71bb5e0: a(n) WorldState
0xade180 M WorldMorph>runStepMethods 0x6ab7778: a(n) WorldMorph
0xade198 M WorldState>doOneCycleNowFor: 0x71bb5e0: a(n) WorldState
0xade1b4 M WorldState>doOneCycleFor: 0x71bb5e0: a(n) WorldState
0xade1d0 M WorldMorph>doOneCycle 0x6ab7778: a(n) WorldMorph
0xade1e8 M WorldMorph class>doOneCycle 0x6a9f960: a(n) WorldMorph class
0xade200 M [] in MorphicUIManager>spawnNewProcess 0x2cc88718: a(n)
MorphicUIManager
0xade220 I [] in BlockClosure>newProcess 0x2f178150: a(n) BlockClosure
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