I built fresh Cog VM using cmake configs. Pharo 1.2 tests still crashing with segfault. Here the stack dump:
0xbff638f0 M CompiledMethod(Object)>becomeForward: 461278460: a(n) CompiledMethod 0xbff63914 M CompiledMethod>setSourcePointer: 461278460: a(n) CompiledMethod 0xbff63930 M CompiledMethod>setSourcePosition:inFile: 461278460: a(n) CompiledMethod 0xbff63958 M CompiledMethod>putSource:fromParseNode:inFile:withPreamble: 461278460: a(n) CompiledMethod 0xbff63988 M ClassTrait(TraitBehavior)>addTraitSelector:withMethod: 460086116: a(n) ClassTrait 0xbff639b4 M [] in ClassTrait(TraitBehavior)>updateMethodDictionarySelector: 460086116: a(n) ClassTrait 0xbff639d4 M OrderedCollection>do: 461255108: a(n) OrderedCollection 0xbff639f8 M ClassTrait(TraitBehavior)>updateMethodDictionarySelector: 460086116: a(n) ClassTrait 0xbff63a1c M [] in ClassTrait(TraitBehavior)>noteChangedSelectors: 460086116: a(n) ClassTrait 0xbff63a3c M [] in IdentitySet(Set)>do: 461251388: a(n) IdentitySet 0xbff63a60 M Array(SequenceableCollection)>do: 461251400: a(n) Array 0xbff63a7c M IdentitySet(Set)>do: 461251388: a(n) IdentitySet 0xbff63a9c M ClassTrait(TraitBehavior)>noteChangedSelectors: 460086116: a(n) ClassTrait 0xbff63ac4 I ClassTrait(TraitBehavior)>applyChangesOfNewTraitCompositionReplacing: 460086116: a(n) ClassTrait 0xbff63aec I ClassTrait(TraitDescription)>applyChangesOfNewTraitCompositionReplacing: 460086116: a(n) ClassTrait 0xbff63b14 I ClassTrait(TraitBehavior)>setTraitComposition: 460086116: a(n) ClassTrait 0xbff63b40 I ClassTrait>noteNewBaseTraitCompositionApplied: 460086116: a(n) ClassTrait 0xbff63b68 I Trait>applyChangesOfNewTraitCompositionReplacing: 460085756: a(n) Trait 0xbff63b90 I Trait(TraitBehavior)>setTraitComposition: 460085756: a(n) Trait 0xbff63bc0 I Trait class>named:uses:category:env: 437072228: a(n) Trait class 0xbff63bf4 I Trait class>named:uses:category: 437072228: a(n) Trait class 0xbff63c24 I TraitCompositionTest(TraitsTestCase)>createTraitNamed:uses: 456579032: a(n) TraitCompositionTest 0xbff63c4c M TraitCompositionTest>testProvidedMethodBindingsWithConflicts 456579032: a(n) TraitCompositionTest 0xbff63c64 M TraitCompositionTest(TestCase)>performTest 456579032: a(n) TraitCompositionTest Looks like Cog really don't likes when image trying to manipulate with methods using #become: :) However, running TraitCompositionTest run: #testProvidedMethodBindingsWithConflicts alone, doesn't triggers a crash, which makes me suspect that object memory is damaged by something which runs before it, and this crash is only a consequence of damage. Running the TraitsTestCase also works w/o problems. This bug is really lurky SOAB :) I removed the TraitCompositionTest from system and run the tests again. This time i got crash in different place: (gdb) bt #0 mapForbcpcperformUntilarg (cogMethod=0x19df44c8, startbcpc=104, functionSymbol=0x6de0 <findMcpcBcpcMatchingBcpc>, arg=0x92) at /Users/sig/projects/cog/sig-cog/src/vm/cogit.c:12014 #1 0x00009154 in mcPCForstartBcpcin (bcpc=146, startbcpc=104, cogMethod=0x19df44c8) at /Users/sig/projects/cog/sig-cog/src/vm/cogit.c:12604 #2 0x0006c967 in interpret () at /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-cointerp.c:5904 #3 0x0006dc78 in enterSmalltalkExecutiveImplementation () at /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-cointerp.c:14081 #4 0x0006ede4 in initStackPagesAndInterpret () at /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-cointerp.c:17676 (gdb) call (int) printAllStacks() Process 0x1a7e02ac priority 40 0xbff64b34 M [] in FileStreamTest>doTestsForReading:intoBufferWithSize:startingAt:fromFileOfSize:offsetBy: 455083812: a(n) FileStreamTest 0xbff64b54 M BlockClosure>ensure: 457616488: a(n) BlockClosure 0xbff64b80 I FileStreamTest>doTestsForReading:intoBufferWithSize:startingAt:fromFileOfSize:offsetBy: 455083812: a(n) FileStreamTest 0xbff64bac M FileStreamTest>testReadIntoStartingAtCountAll 455083812: a(n) FileStreamTest 0xbff64bc4 M FileStreamTest(TestCase)>performTest 455083812: a(n) FileStreamTest 0xbff64bdc M [] in FileStreamTest(TestCase)>runCase 455083812: a(n) FileStreamTest 0xbff64bfc M BlockClosure>ensure: 457616196: a(n) BlockClosure 0xbff64c18 M FileStreamTest(TestCase)>runCase 455083812: a(n) FileStreamTest 0xbff64c34 M [] in TestResult>runCase: 454652328: a(n) TestResult .... This is reproducible by running: FileStreamTest run: #testReadIntoStartingAtCountAll but works fine in older VM(s). I continued attempts to run whole tests after removing TraitCompositionTest and FileStreamTest, and here's another one: (gdb) bt #0 0x00040bb7 in mapPointersInObjectsFromto (memStart=455419144, memEnd=456751028) at sqMemoryAccess.h:81 #1 0x00043acc in becomewithtwoWaycopyHash (array1=456751008, array2=456751016, twoWayFlag=1, copyHashFlag=1) at /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-cointerp.c:9410 #2 0x00044268 in primitiveArrayBecome () at /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-cointerp.c:22887 #3 0x19dc8c31 in ?? () #4 0x0006ede4 in initStackPagesAndInterpret () at /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-cointerp.c:17676 #5 0x0008a773 in EventLoopEventHandler (inHandlerCallRef=0xbfffca70, inEvent=0x417760, inUserData=0x0) at /Users/sig/projects/cog/sig-cog/platforms/Mac OS/vm/sqMacUIEven (gdb) call (int) printAllStacks() Process 0x1a7d09f4 priority 40 0xbff64b54 M ByteString(ProtoObject)>become: 456750624: a(n) ByteString 0xbff64b78 M ByteString>? 456750624: a(n) ByteString 0xbff64bac M MethodDictionaryTest>testRemoveKeyIfAbsent 454729064: a(n) MethodDictionaryTest 0xbff64bc4 M MethodDictionaryTest(TestCase)>performTest 454729064: a(n) MethodDictionaryTest 0xbff64bdc M [] in MethodDictionaryTest(TestCase)>runCase 454729064: a(n) MethodDictionaryTest 0xbff64bfc M BlockClosure>ensure: 456748784: a(n) BlockClosure 0xbff64c18 M MethodDictionaryTest(TestCase)>runCase 454729064: a(n) MethodDictionaryTest 0xbff64c34 M [] in TestResult>runCase: 454590236: a(n) TestResult 0xbff64c50 M BlockClosure>on:do: 456748452: a(n) BlockClosure 0xbff64c70 M TestResult>runCase: 454590236: a(n) TestResult 0xbff64c8c M MethodDictionaryTest(TestCase)>run: 454729064: a(n) MethodDictionaryTest 0xbff64ca8 M TestRunner>runTest: 454542100: a(n) TestRunner 0xbff64cc4 M [] in TestRunner>runSuite: 454542100: a(n) TestRunner .. as expected, by running this test alone it doesn't causing any troubles. Another thing which i noticed that i got DNU during world menu render and it is caused by making colors of Cubic-Rubik form to contain smallinteger values. This is original (once i start image): ColorForm allInstances collect: #colors an Array(a ColorArray(Color transparent (Color r: 0.0 g: 0.0 b: 0.004)) a ColorArray(Color transparent Color transparent) a ColorArray(Color transparent Color transparent)) And after some manipulations and wandering i got: ColorForm allInstances collect: #colors an Array(a ColorArray(Color transparent (Color r: 0.0 g: 0.0 b: 0.004)) a ColorArray(Color transparent Color transparent) a ColorArray(Color transparent Color transparent) #(0 4278190081)) What i found really strange that these values are somehow flipped back to normal ones (or maybe it is i, who restarted the image.. not sure).. -- Best regards, Igor Stasenko AKA sig.
