[Vm-dev] last object overwritten
Frank Shearar
frank.shearar at gmail.com
Wed Feb 27 14:51:51 UTC 2013
So I thought I'd be extra tricky with some partial continuation stuff
and, as sometimes happens, things went Badly Wrong and the VM crashed.
What was odd was that it said "last object overwritten", which I've
not seen before.
Good news though: I have an image that will trigger the bug in a
reproducible fashion! Since it's a 14M tarball, maybe I should mail it
to Eliot separately... (but if anyone else wants a look I'm happy to
supply a copy).
frank
Stack trace:
last object overwritten
Squeak VM version: 4.0-2678 #1 Wed Feb 6 11:36:48 PST 2013 gcc 4.1.2
Built from: CoInterpreter VMMaker.oscog-eem.264 uuid:
64e76092-8af7-449f-9188-e65f3bd1f08d Feb 6 2013
With: StackToRegisterMappingCogit VMMaker.oscog-eem.264 uuid:
64e76092-8af7-449f-9188-e65f3bd1f08d Feb 6 2013
Revision: VM: r2678 http://www.squeakvm.org/svn/squeak/branches/Cog
Plugins: r2545 http://squeakvm.org/svn/squeak/trunk/platforms/Cross/plugins
Build host: Linux mcqfes 2.6.18-128.el5 #1 SMP Wed Jan 21 10:44:23 EST
2009 i686 i686 i386 GNU/Linux
plugin path: /home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678
[default: /home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/lib/squeak/4.0-2678/]
C stack backtrace:
/home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678/squeak[0x805cb71]
/home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678/squeak(error+0x19)[0x805ce59]
/home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678/squeak[0x8069bb3]
/home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678/squeak[0x80789ff]
[0x77709183]
/home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678/squeak(interpret+0x1eb)[0x807f23b]
/home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678/squeak(main+0x397)[0x805d237]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0xbb1bd6]
/home/frank/Documents/squeak-ci/target/cog.r2678/coglinux/bin/../lib/squeak/4.0-2678/squeak[0x805ac41]
Smalltalk stack dump:
0xbfc80668 M MethodContext(Object)>copy 2037438000: a(n) MethodContext
0xbfc80684 M MethodContext(ContextPart)>copyTo: 2037438000: a(n) MethodContext
0xbfc806a8 M MethodContext(ContextPart)>copyTo: 2037437956: a(n) MethodContext
0xbfc806cc M MethodContext(ContextPart)>copyTo: 2037437880: a(n) MethodContext
0xbfc87548 M MethodContext(ContextPart)>copyTo: 2037440340: a(n) MethodContext
0xbfc8756c M MethodContext(ContextPart)>copyTo: 2037440248: a(n) MethodContext
0xbfc87590 M MethodContext(ContextPart)>copyTo: 2037439048: a(n) MethodContext
0xbfc875b4 M MethodContext(ContextPart)>copyTo: 2037440156: a(n) MethodContext
0xbfc875d0 M PartialContinuation>from:downTo: 2037440528: a(n)
PartialContinuation
0xbfc875f0 M PartialContinuation class>from:downTo: 2032752868: a(n)
PartialContinuation class
0xbfc87620 M BlockClosure>shift: 2037439144: a(n) BlockClosure
0xbfc8763c M BlockClosure>shift 2037439144: a(n) BlockClosure
0xbfc87654 M [] in Zipper class>zipOver: 2033885808: a(n) Zipper class
0xbfc87674 M [] in Zipper class>zipOver: 2033885808: a(n) Zipper class
0xbfc8769c M TestTree>collect: 2037413184: a(n) TestTree
0xbfc876cc I TestTree>collect: 2037413204: a(n) TestTree
0x7970d604 s TestTree>collect:
0x7970d630 s [] in Zipper class>zipOver:
0x7970d65c s [] in PartialContinuation>compose:
0x7970d690 s [] in Zipper>next:
0x7970d6c4 s [] in PartialContinuation>compose:
0x7970d700 s [] in Zipper>next:
0x7970d73c s [] in PartialContinuation>compose:
0x7970d780 s [] in Zipper>next:
0x7970d87c s [] in PartialContinuation>compose:
0x7970d8c8 s [] in Zipper>next:
0x7970d914 s [] in PartialContinuation>compose:
0x7970d968 s [] in Zipper>next:
0xbfc92558 M [] in PartialContinuation>compose: 2037435320: a(n)
PartialContinuation
0xbfc92578 M [] in Zipper>next: 2037436996: a(n) Zipper
0xbfc92594 M BlockClosure>on:do: 2037437104: a(n) BlockClosure
0xbfc925b4 M BlockClosure>reset 2037437104: a(n) BlockClosure
0xbfc925cc M Zipper>next: 2037436996: a(n) Zipper
0xbfc925f4 M ZipperTest>testEnumerationWorksOverTrees 2035691720: a(n)
ZipperTest
0xbfc9260c M ZipperTest(TestCase)>performTest 2035691720: a(n) ZipperTest
0xbfc92624 M [] in ZipperTest(TestCase)>runCase 2035691720: a(n) ZipperTest
0xbfc92640 M BlockClosure>on:do: 2037411540: a(n) BlockClosure
0xbfc92668 M [] in ZipperTest(TestCase)>timeout:after: 2035691720:
a(n) ZipperTest
0xbfc92688 M BlockClosure>ensure: 2037412856: a(n) BlockClosure
0xbfc926b0 M ZipperTest(TestCase)>timeout:after: 2035691720: a(n) ZipperTest
0xbfc926d0 M [] in ZipperTest(TestCase)>runCase 2035691720: a(n) ZipperTest
0xbfcd0508 M BlockClosure>ensure: 2037409660: a(n) BlockClosure
0xbfcd0524 M ZipperTest(TestCase)>runCase 2035691720: a(n) ZipperTest
0xbfcd0540 M [] in TestResult>runCase: 2035689052: a(n) TestResult
0xbfcd055c M BlockClosure>on:do: 2037409516: a(n) BlockClosure
0xbfcd0584 M [] in TestResult>runCase: 2035689052: a(n) TestResult
0xbfcd05a0 M BlockClosure>on:do: 2037409368: a(n) BlockClosure
0xbfcd05c4 M TestResult>runCase: 2035689052: a(n) TestResult
0xbfcd05e0 M ZipperTest(TestCase)>run: 2035691720: a(n) ZipperTest
0xbfcd05fc M TestRunner>runTest: 2034780632: a(n) TestRunner
0xbfcd0620 I [] in TestRunner>runSuite: 2034780632: a(n) TestRunner
0xbfcd0658 M [] in
OrderedCollection(Collection)>do:displayingProgress:every: 2035691588:
a(n) OrderedCollection
0xbfcd0678 M OrderedCollection>do: 2035691588: a(n) OrderedCollection
0xbfcd06a8 M [] in
OrderedCollection(Collection)>do:displayingProgress:every: 2035691588:
a(n) OrderedCollection
0xbfcd06d0 M [] in MorphicUIManager>displayProgress:at:from:to:during:
2015074224: a(n) MorphicUIManager
0xbfccd504 M BlockClosure>on:do: 2035694312: a(n) BlockClosure
0xbfccd530 M [] in MorphicUIManager>displayProgress:at:from:to:during:
2015074224: a(n) MorphicUIManager
0xbfccd550 M BlockClosure>ensure: 2035694164: a(n) BlockClosure
0xbfccd574 M MorphicUIManager>displayProgress:at:from:to:during:
2015074224: a(n) MorphicUIManager
0xbfccd5a0 M ProgressInitiationException>defaultResumeValue
2035693376: a(n) ProgressInitiationException
0xbfccd5bc M ProgressInitiationException(Exception)>resume 2035693376:
a(n) ProgressInitiationException
0xbfccd5d4 M ProgressInitiationException>defaultAction 2035693376:
a(n) ProgressInitiationException
0xbfccd5f0 M UndefinedObject>handleSignal: 2004824068: a(n) UndefinedObject
0xbfccd610 M MethodContext(ContextPart)>handleSignal: 2035693708: a(n)
MethodContext
0xbfccd62c M ProgressInitiationException(Exception)>signal 2035693376:
a(n) ProgressInitiationException
0xbfccd644 M ProgressInitiationException>display:at:from:to:during:
2035693376: a(n) ProgressInitiationException
0xbfccd670 M ProgressInitiationException
class>display:at:from:to:during: 2015244060: a(n)
ProgressInitiationException class
0xbfccd69c M ByteString(String)>displayProgressAt:from:to:during:
2015249596: a(n) ByteString
0xbfccd6c4 M ByteString(String)>displayProgressFrom:to:during:
2015249596: a(n) ByteString
0xbfccc5d0 M OrderedCollection(Collection)>do:displayingProgress:every:
2035691588: a(n) OrderedCollection
0xbfccc608 I [] in TestRunner>basicRunSuite:do: 2034780632: a(n) TestRunner
0xbfccc628 M BlockClosure>ensure: 2035693036: a(n) BlockClosure
0xbfccc64c I TestRunner>basicRunSuite:do: 2034780632: a(n) TestRunner
0xbfccc674 I TestRunner>runSuite: 2034780632: a(n) TestRunner
0xbfccc690 M TestRunner>runAll 2034780632: a(n) TestRunner
0xbfccc6b0 I PluggableButtonMorphPlus(PluggableButtonMorph)>performAction
2034847192: a(n) PluggableButtonMorphPlus
0xbfccc6d0 I PluggableButtonMorphPlus>performAction 2034847192: a(n)
PluggableButtonMorphPlus
0xbfccf534 M [] in
PluggableButtonMorphPlus(PluggableButtonMorph)>mouseUp: 2034847192:
a(n) PluggableButtonMorphPlus
0xbfccf558 M Array(SequenceableCollection)>do: 2035687788: a(n) Array
0xbfccf574 M PluggableButtonMorphPlus(PluggableButtonMorph)>mouseUp:
2034847192: a(n) PluggableButtonMorphPlus
0xbfccf598 I PluggableButtonMorphPlus>mouseUp: 2034847192: a(n)
PluggableButtonMorphPlus
0xbfccf5b4 M PluggableButtonMorphPlus(Morph)>handleMouseUp:
2034847192: a(n) PluggableButtonMorphPlus
0xbfccf5d0 M MouseButtonEvent>sentTo: 2035688712: a(n) MouseButtonEvent
0xbfccf5ec M PluggableButtonMorphPlus(Morph)>handleEvent: 2034847192:
a(n) PluggableButtonMorphPlus
0xbfccf608 M PluggableButtonMorphPlus(Morph)>handleFocusEvent:
2034847192: a(n) PluggableButtonMorphPlus
0xbfccf630 M [] in HandMorph>sendFocusEvent:to:clear: 2007171128: a(n) HandMorph
0xbfccf64c M BlockClosure>on:do: 2035688464: a(n) BlockClosure
0xbfccf678 M PasteUpMorph>becomeActiveDuring: 2013415124: a(n) PasteUpMorph
0xbfccf69c M HandMorph>sendFocusEvent:to:clear: 2007171128: a(n) HandMorph
0xbfccf6c4 M HandMorph>sendEvent:focus:clear: 2007171128: a(n) HandMorph
0xbfc755b4 M HandMorph>sendMouseEvent: 2007171128: a(n) HandMorph
0xbfc755d8 M HandMorph>handleEvent: 2007171128: a(n) HandMorph
0xbfc75604 M HandMorph>processEvents 2007171128: a(n) HandMorph
0xbfc75620 M [] in WorldState>doOneCycleNowFor: 2004979600: a(n) WorldState
0xbfc75644 M Array(SequenceableCollection)>do: 2004895736: a(n) Array
0xbfc75660 M WorldState>handsDo: 2004979600: a(n) WorldState
0xbfc75680 M WorldState>doOneCycleNowFor: 2004979600: a(n) WorldState
0xbfc7569c M WorldState>doOneCycleFor: 2004979600: a(n) WorldState
0xbfc756b8 M PasteUpMorph>doOneCycle 2013415124: a(n) PasteUpMorph
0xbfc756d0 M [] in Project class>spawnNewProcess 2012564228: a(n) Project class
0x79075924 s [] in BlockClosure>newProcess
Most recent primitives
basicNew
basicNew
basicNew
findNextHandlerContextStarting
tempAt:
tempAt:
tempAt:put:
tempAt:
findNextUnwindContextUpTo:
tempAt:
tempAt:put:
tempAt:
terminateTo:
tempAt:put:
findNextUnwindContextUpTo:
terminateTo:
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
findNextHandlerContextStarting
tempAt:
tempAt:
tempAt:put:
tempAt:
findNextUnwindContextUpTo:
tempAt:
tempAt:put:
tempAt:
terminateTo:
tempAt:put:
findNextUnwindContextUpTo:
terminateTo:
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
findNextHandlerContextStarting
tempAt:
tempAt:
tempAt:put:
tempAt:
findNextUnwindContextUpTo:
tempAt:
tempAt:put:
tempAt:
terminateTo:
tempAt:put:
findNextUnwindContextUpTo:
terminateTo:
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
findNextHandlerContextStarting
tempAt:
tempAt:
tempAt:put:
tempAt:
findNextUnwindContextUpTo:
tempAt:
tempAt:put:
tempAt:
terminateTo:
tempAt:put:
findNextUnwindContextUpTo:
terminateTo:
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
findNextHandlerContextStarting
tempAt:
tempAt:
tempAt:put:
tempAt:
findNextUnwindContextUpTo:
tempAt:
tempAt:put:
tempAt:
terminateTo:
tempAt:put:
findNextUnwindContextUpTo:
terminateTo:
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
findNextHandlerContextStarting
tempAt:
tempAt:
tempAt:put:
tempAt:
findNextUnwindContextUpTo:
tempAt:
tempAt:put:
tempAt:
terminateTo:
tempAt:put:
findNextUnwindContextUpTo:
terminateTo:
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
basicNew
findNextHandlerContextStarting
tempAt:
tempAt:
tempAt:put:
tempAt:
findNextUnwindContextUpTo:
tempAt:
tempAt:put:
tempAt:
terminateTo:
tempAt:put:
findNextUnwindContextUpTo:
terminateTo:
basicNew
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
shallowCopy
stack page bytes 4096 available headroom 3300 minimum unused headroom 3504
(last object overwritten)
More information about the Vm-dev
mailing list