The Trunk: Graphics-fbs.209.mcz

On 23 April 2013 15:14, Bert Freudenberg <[hidden email]> wrote:
> On 2013-04-23, at 11:41, Frank Shearar <[hidden email]> wrote:
>
>> I've pushed out a new config map, update-fbs.231, which loads Morphic
>> before Graphics, thus ensuring that there's always a #asGrafPort in
>> the image. I still don't like that Cog sprang a leak there, but at
>> least things are back on track.
>>
>> All I'd wanted to do was move a method from one package to another: I
>> really hadn't expected to completely smash updating. Is there anything
>> I could have done before pushing to trunk to prevent this?
>>
>> frank
>
> Moving an active method from one package to another is fragile, as you discovered. The moved-to package must be loaded first, otherwise the method is deleted from the system.
>
> The proper way to let MC handle this would be to load the two packages together, in which case the order would not matter. But this had worse consequences so we're using the update-map order instead.

Do you mean using slices? If so, what are the worse problems?

> A possible solution would be to go through the whole update map first and find the "bad" moves (those where a method or class would be deleted and later added again) and load only these. Since it only reclassifies, the actual system behavior would be unchanged. But the loading would succeed without introducing obsolete instances and missing methods.

 

That sounds like it could work. You have to get all those new updates
anyway, so getting them up front and "merging" them wouldn't be (much
of) a performance hit.

> - Bert -

On 2013-04-24, at 16:46, karl ramberg <[hidden email]> wrote:

> On 23 April 2013 15:14, Bert Freudenberg <[hidden email]> wrote:

>>  A possible solution would be to go through the whole update map first and find the "bad" moves (those where a method or class would be deleted and later added again) and load only these. Since it only reclassifies, the actual system behavior would be unchanged. But the loading would succeed without introducing obsolete instances and missing methods.

>> Could a preamble with the method in concern inlined work ?
>
> Karl

That would be way too fragile, IMHO. And I think it would make contributing such recategorizations harder, not easier.

- Bert -

Hi Eliot,

There's an image in your inbox. This crashes on my laptop (Ubuntu
10.10, 32 bit machine), but on my work machine (Ubuntu 10.10, 64 bit
machine) just hangs forever.

IIRC this is the same behaviour as the last image I sent you, with my
parsing derivatives stuff triggering the overwrite.

frank

On 23 April 2013 18:20, Eliot Miranda <[hidden email]> wrote:
> Hi Frank,
>
>     I need to be able to reproduce this.  The error message means what it
> says; some code in the VM (primitives usually) has written beyond the end of
> an object, which, if it weren't happening to the last object in memory would
> smash the following object, crashing the GC.  So when this happens please
> attempt to create an image that reproduces the bug and then I can track down
> the offending overwrite.
>
> The VM fills the nursery zone with a specific bit pattern (each 4-byte word
> contains its address) and checks on allocation that the allocation pointer
> is pointing at a word with the right contents.  If not, it aborts.  In this
> case the effects are benign (because the overwrite is writing beyond the
> allocation pointer where there are no objects).  But if whatever code
> overwrote did so to an object in the middle of the heap a less easily
> diagnosed crash would occur.
>
>
> On Tue, Apr 23, 2013 at 2:34 AM, Frank Shearar <[hidden email]>
> wrote:
>>
>> On 23 April 2013 09:50,  <[hidden email]> wrote:
>> > Frank Shearar uploaded a new version of Graphics to project The Trunk:
>> > http://source.squeak.org/trunk/Graphics-fbs.209.mcz
>> >
>> > ==================== Summary ====================
>> >
>> > Name: Graphics-fbs.209
>> > Author: fbs
>> > Time: 23 April 2013, 9:50:00.413 am
>> > UUID: 4dd577f2-2a70-4e21-8efa-5847b3ad804c
>> > Ancestors: Graphics-tpr.208
>> >
>> > #asGrafPort belongs in the Morphic package.
>> >
>> > =============== Diff against Graphics-tpr.208 ===============
>> >
>> > Item was removed:
>> > - ----- Method: BitBlt class>>asGrafPort (in category 'instance
>> > creation') -----
>> > - asGrafPort
>> > -       "Return the GrafPort associated with the receiver"
>> > -       ^GrafPort!
>>
>> I don't see why, but this and its pair Morphic-fbs-648 seem to have
>> triggered a nasty bug in Cog r.2714.
>>
>> To trigger it,
>> * clone https://github.com/frankshearar/squeak-ci/
>> * open the Squeak4.5.image therein, with a (Linux) Cog r.2714
>> * update it.
>>
>> Everything proceeds fine until installing this update. On my weak
>> little laptop things pause, and then I see the dreaded "(last object
>> overwritten)" message. On my much more powerful work machine (also a
>> Linux box) it just pauses. Squeak's burning a hole in the CPU, and
>> updating is uninterruptable.
>>
>> On my work machine, upgrading using an Interpreter VM just leaves me
>> hanging.
>>
>> <cog's output follows:>
>> last object overwritten
>>
>> Squeak VM version: 4.0-2714 #1 Thu Apr  4 11:52:39 PDT 2013 gcc 4.1.2
>> Built from: CoInterpreter VMMaker.oscog-eem.282 uuid:
>> 6c2f2048-555b-4d37-a9eb-4d9252acf3b9 Apr  4 2013
>> With: StackToRegisterMappingCogit VMMaker.oscog-eem.282 uuid:
>> 6c2f2048-555b-4d37-a9eb-4d9252acf3b9 Apr  4 2013
>> Revision: VM: r2714 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: target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714
>> [default:
>> /home/frank/Documents/squeak-ci/target/cog.r2714/coglinux/lib/squeak/4.0-2714/]
>>
>>
>> C stack backtrace:
>> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak[0x805cca1]
>>
>> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(error+0x19)[0x805cf89]
>>
>> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(instantiateClassindexableSize+0xa9)[0x807a159]
>> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak[0x807b21b]
>> [0x77745451]
>>
>> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(interpret+0x1eb)[0x808080b]
>>
>> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(main+0x397)[0x805d367]
>> /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0x12abd6]
>> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak[0x805ad61]
>>
>>
>> Smalltalk stack dump:
>> 0xbfe2ad38 M Bitmap class(Behavior)>new: 0x77b25270: a(n) Bitmap class
>> 0xbfe2ad54 M Form>setExtent:depth: 0x7ff6e7a0: a(n) Form
>> 0xbfe2ad74 M Form class>extent:depth: 0x77b27480: a(n) Form class
>> 0xbfe2ada0 M DisplayText>composeForm 0x7ff6d8fc: a(n) DisplayText
>> 0xbfe2adb8 M DisplayText>form 0x7ff6d8fc: a(n) DisplayText
>> 0xbfe2add8 M DisplayText>displayOn:at:clippingBox:rule:fillColor:
>> 0x7ff6d8fc: a(n) DisplayText
>> 0xbfe2ae04 M DisplayText(DisplayObject)>displayOn:at: 0x7ff6d8fc: a(n)
>> DisplayText
>> 0xbfe2ae24 M ByteString(String)>displayOn:at:textColor: 0x7ff6d450:
>> a(n) ByteString
>> 0xbfe81ca0 M ByteString(String)>displayOn:at: 0x7ff6d450: a(n) ByteString
>> 0xbfe81cc0 M ByteString(String)>displayAt: 0x7ff6d450: a(n) ByteString
>> 0xbfe81cdc M Debugger class(Object)>primitiveError: 0x77dc864c: a(n)
>> Debugger class
>> 0xbfe81cfc M [] in Debugger
>> class>morphicOpenOn:context:label:contents:fullView: 0x77dc864c: a(n)
>> Debugger class
>> 0xbfe81d18 M BlockClosure>cull: 0x7ff577ac: a(n) BlockClosure
>> 0xbfe81d38 M [] in MethodContext(ContextPart)>handleSignal:
>> 0x7ff6cc68: a(n) MethodContext
>> 0xbfe81d58 M BlockClosure>ensure: 0x7ff6cd24: a(n) BlockClosure
>> 0xbfe81d78 M MethodContext(ContextPart)>handleSignal: 0x7ff6cc68: a(n)
>> MethodContext
>> 0xbfe81d94 M MessageNotUnderstood(Exception)>signal 0x7ff6cad4: a(n)
>> MessageNotUnderstood
>> 0xbfe81db4 M BitBlt class(Object)>doesNotUnderstand: asGrafPort
>> 0x77b22b48: a(n) BitBlt class
>> 0xbfe81dd0 M FormCanvas>portClass 0x7ff5ca70: a(n) FormCanvas
>> 0xbfe81de8 M FormCanvas>setForm: 0x7ff5ca70: a(n) FormCanvas
>> 0xbfe81e04 M FormCanvas class>extent:depth: 0x77b2d750: a(n) FormCanvas
>> class
>> 0xbfe81e28 M RectangleMorph(Morph)>imageForm:forRectangle: 0x7ff5c550:
>> a(n) RectangleMorph
>> 0xbfe39d14 M RectangleMorph(Morph)>imageFormForRectangle: 0x7ff5c550:
>> a(n) RectangleMorph
>> 0xbfe39d30 M RectangleMorph(Morph)>imageForm 0x7ff5c550: a(n)
>> RectangleMorph
>> 0xbfe39d5c M ScrollBar class>createArrowOfDirection:size:color:
>> 0x77b29268: a(n) ScrollBar class
>> 0xbfe39d80 M [] in ScrollBar class>createArrowImagesCache 0x77b29268:
>> a(n) ScrollBar class
>> 0xbfe39db0 M LRUCache>at: 0x785bcddc: a(n) LRUCache
>> 0xbfe39dcc M ScrollBar class>arrowOfDirection:size:color: 0x77b29268:
>> a(n) ScrollBar class
>> 0xbfe39df0 M ScrollBar>upImage 0x7ff5b408: a(n) ScrollBar
>> 0xbfe39e10 M ScrollBar>updateUpButtonImage 0x7ff5b408: a(n) ScrollBar
>> 0xbfe39e2c M ScrollBar>sliderColor: 0x7ff5b408: a(n) ScrollBar
>> 0xbfe44cf8 I ScrollBar>adoptPaneColor: 0x7ff5b408: a(n) ScrollBar
>> 0xbfe44d18 M [] in PluggableListMorphPlus(Morph)>adoptPaneColor:
>> 0x7ff5ab30: a(n) PluggableListMorphPlus
>> 0xbfe44d3c M Array(SequenceableCollection)>do: 0x7ff5bea4: a(n) Array
>> 0xbfe44d58 M PluggableListMorphPlus(Morph)>submorphsDo: 0x7ff5ab30:
>> a(n) PluggableListMorphPlus
>> 0xbfe44d74 M PluggableListMorphPlus(Morph)>adoptPaneColor: 0x7ff5ab30:
>> a(n) PluggableListMorphPlus
>> 0xbfe44d90 M PluggableListMorphPlus(ScrollPane)>adoptPaneColor:
>> 0x7ff5ab30: a(n) PluggableListMorphPlus
>> 0xbfe44dc0 M PluggableSystemWindow(SystemWindow)>addMorph:fullFrame:
>> 0x7ff5803c: a(n) PluggableSystemWindow
>> 0xbfe44de0 M PluggableSystemWindow>addPaneMorph: 0x7ff5803c: a(n)
>> PluggableSystemWindow
>> 0xbfe44dfc M MorphicToolBuilder>add:to: 0x7ff57880: a(n)
>> MorphicToolBuilder
>> 0xbfe44e2c M MorphicToolBuilder>buildPluggableList: 0x7ff57880: a(n)
>> MorphicToolBuilder
>> 0xbfe6ccec M PluggableListSpec>buildWith: 0x7ff57b74: a(n)
>> PluggableListSpec
>> 0xbfe6cd08 M [] in MorphicToolBuilder(ToolBuilder)>buildAll:in:
>> 0x7ff57880: a(n)
>>  MorphicToolBuilder
>> 0xbfe6cd28 M OrderedCollection>do: 0x7ff578dc: a(n) OrderedCollection
>> 0xbfe6cd48 M MorphicToolBuilder(ToolBuilder)>buildAll:in: 0x7ff57880:
>> a(n) MorphicToolBuilder
>> 0xbfe6cd74 M MorphicToolBuilder>buildPluggableWindow: 0x7ff57880: a(n)
>> MorphicToolBuilder
>> 0xbfe6cd90 M PluggableWindowSpec>buildWith: 0x7ff57898: a(n)
>> PluggableWindowSpec
>> 0xbfe6cdb4 I MorphicToolBuilder(ToolBuilder)>build: 0x7ff57880: a(n)
>> MorphicToolBuilder
>> 0xbfe6cddc I MorphicToolBuilder>open: 0x7ff57880: a(n) MorphicToolBuilder
>> 0xbfe6ce00 I MorphicToolBuilder(ToolBuilder)>openDebugger: 0x7ff57880:
>> a(n) MorphicToolBuilder
>> 0xbfe6ce28 M Debugger>openNotifierContents:label: 0x7ff577c4: a(n)
>> Debugger
>> 0xbfea4d08 M [] in Debugger
>> class>morphicOpenOn:context:label:contents:fullView: 0x77dc864c: a(n)
>> Debugger class
>> 0xbfea4d24 M BlockClosure>on:do: 0x7ff5777c: a(n) BlockClosure
>> 0xbfea4d60 M [] in Debugger
>> class>morphicOpenOn:context:label:contents:fullView: 0x77dc864c: a(n)
>> Debugger class
>> 0xbfea4d88 M WorldState>runStepMethodsIn: 0x77834af8: a(n) WorldState
>> 0xbfea4da4 M PasteUpMorph>runStepMethods 0x77c6a5ec: a(n) PasteUpMorph
>> 0xbfea4dc0 M WorldState>doOneCycleNowFor: 0x77834af8: a(n) WorldState
>> 0xbfea4ddc M WorldState>doOneCycleFor: 0x77834af8: a(n) WorldState
>> 0xbfea4df8 M PasteUpMorph>doOneCycle 0x77c6a5ec: a(n) PasteUpMorph
>> 0xbfea4e10 M [] in Project class>spawnNewProcess 0x77c54960: a(n) Project
>> class
>> 0xbfea4e30 I [] in BlockClosure>newProcess 0x7ff557f4: a(n) BlockClosure
>>
>> Most recent primitives
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> at:put:
>> @
>> @
>> basicNew
>> new:
>> at:put:
>> basicNew
>> shallowCopy
>> shallowCopy
>> at:put:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> at:put:
>> @
>> @
>> basicNew
>> new:
>> at:put:
>> basicNew
>> shallowCopy
>> shallowCopy
>> at:put:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> new:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> at:put:
>> perform:
>> at:put:
>> species
>> new:
>> replaceFrom:to:with:startingAt:
>> @
>> @
>> basicNew
>> @
>> @
>> @
>> @
>> @
>> @
>> perform:with:
>> @
>> @
>> species
>> species
>> at:put:
>> @
>> basicNew
>> basicNew:
>>
>> stack page bytes 4096 available headroom 3300 minimum unused headroom 2228
>>
>> (last object overwritten)
>>
>> frank
>>
>
>
>
> --
> best,
> Eliot
>
>
>

On 24 April 2013 17:50, Eliot Miranda <[hidden email]> wrote:
> Hi Frank,
>

> On Wed, Apr 24, 2013 at 3:37 AM, Frank Shearar <[hidden email]>
> wrote:
>>
>> Hi Eliot,
>>
>> There's an image in your inbox. This crashes on my laptop (Ubuntu
>> 10.10, 32 bit machine), but on my work machine (Ubuntu 10.10, 64 bit
>> machine) just hangs forever.
>
>
> This is an infinite recursion, since asGrafPort is needed to create a
> notifier, and so provokes another attempt to open one:

OK, that makes perfect sense. While I don't suggest we solve the
halting problem, is there a way to make the symptom look less like
it's Cog's fault?

(The other image I sent you should _not_ have an infinite loop, even
though it'll look like it (because it's about 6000 blocks nested
through #compose:)).

frank

>> IIRC this is the same behaviour as the last image I sent you, with my
>> parsing derivatives stuff triggering the overwrite.
>>
>> frank
>>
>> On 23 April 2013 18:20, Eliot Miranda <[hidden email]> wrote:
>> > Hi Frank,
>> >
>> >     I need to be able to reproduce this.  The error message means what
>> > it
>> > says; some code in the VM (primitives usually) has written beyond the
>> > end of
>> > an object, which, if it weren't happening to the last object in memory
>> > would
>> > smash the following object, crashing the GC.  So when this happens
>> > please
>> > attempt to create an image that reproduces the bug and then I can track
>> > down
>> > the offending overwrite.
>> >
>> > The VM fills the nursery zone with a specific bit pattern (each 4-byte
>> > word
>> > contains its address) and checks on allocation that the allocation
>> > pointer
>> > is pointing at a word with the right contents.  If not, it aborts.  In
>> > this
>> > case the effects are benign (because the overwrite is writing beyond the
>> > allocation pointer where there are no objects).  But if whatever code
>> > overwrote did so to an object in the middle of the heap a less easily
>> > diagnosed crash would occur.
>> >
>> >
>> > On Tue, Apr 23, 2013 at 2:34 AM, Frank Shearar <[hidden email]>
>> > wrote:
>> >>
>> >> On 23 April 2013 09:50,  <[hidden email]> wrote:
>> >> > Frank Shearar uploaded a new version of Graphics to project The
>> >> > Trunk:
>> >> > http://source.squeak.org/trunk/Graphics-fbs.209.mcz
>> >> >
>> >> > ==================== Summary ====================
>> >> >
>> >> > Name: Graphics-fbs.209
>> >> > Author: fbs
>> >> > Time: 23 April 2013, 9:50:00.413 am
>> >> > UUID: 4dd577f2-2a70-4e21-8efa-5847b3ad804c
>> >> > Ancestors: Graphics-tpr.208
>> >> >
>> >> > #asGrafPort belongs in the Morphic package.
>> >> >
>> >> > =============== Diff against Graphics-tpr.208 ===============
>> >> >
>> >> > Item was removed:
>> >> > - ----- Method: BitBlt class>>asGrafPort (in category 'instance
>> >> > creation') -----
>> >> > - asGrafPort
>> >> > -       "Return the GrafPort associated with the receiver"
>> >> > -       ^GrafPort!
>> >>
>> >> I don't see why, but this and its pair Morphic-fbs-648 seem to have
>> >> triggered a nasty bug in Cog r.2714.
>> >>
>> >> To trigger it,
>> >> * clone https://github.com/frankshearar/squeak-ci/
>> >> * open the Squeak4.5.image therein, with a (Linux) Cog r.2714
>> >> * update it.
>> >>
>> >> Everything proceeds fine until installing this update. On my weak
>> >> little laptop things pause, and then I see the dreaded "(last object
>> >> overwritten)" message. On my much more powerful work machine (also a
>> >> Linux box) it just pauses. Squeak's burning a hole in the CPU, and
>> >> updating is uninterruptable.
>> >>
>> >> On my work machine, upgrading using an Interpreter VM just leaves me
>> >> hanging.
>> >>
>> >> <cog's output follows:>
>> >> last object overwritten
>> >>
>> >> Squeak VM version: 4.0-2714 #1 Thu Apr  4 11:52:39 PDT 2013 gcc 4.1.2
>> >> Built from: CoInterpreter VMMaker.oscog-eem.282 uuid:
>> >> 6c2f2048-555b-4d37-a9eb-4d9252acf3b9 Apr  4 2013
>> >> With: StackToRegisterMappingCogit VMMaker.oscog-eem.282 uuid:
>> >> 6c2f2048-555b-4d37-a9eb-4d9252acf3b9 Apr  4 2013
>> >> Revision: VM: r2714 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: target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714
>> >> [default:
>> >>
>> >> /home/frank/Documents/squeak-ci/target/cog.r2714/coglinux/lib/squeak/4.0-2714/]
>> >>
>> >>
>> >> C stack backtrace:
>> >> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak[0x805cca1]
>> >>
>> >>
>> >> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(error+0x19)[0x805cf89]
>> >>
>> >>
>> >> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(instantiateClassindexableSize+0xa9)[0x807a159]
>> >> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak[0x807b21b]
>> >> [0x77745451]
>> >>
>> >>
>> >> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(interpret+0x1eb)[0x808080b]
>> >>
>> >>
>> >> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak(main+0x397)[0x805d367]
>> >> /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0x12abd6]
>> >> target/cog.r2714/coglinux/bin/../lib/squeak/4.0-2714/squeak[0x805ad61]
>> >>
>> >>
>> >> Smalltalk stack dump:
>> >> 0xbfe2ad38 M Bitmap class(Behavior)>new: 0x77b25270: a(n) Bitmap class
>> >> 0xbfe2ad54 M Form>setExtent:depth: 0x7ff6e7a0: a(n) Form
>> >> 0xbfe2ad74 M Form class>extent:depth: 0x77b27480: a(n) Form class
>> >> 0xbfe2ada0 M DisplayText>composeForm 0x7ff6d8fc: a(n) DisplayText
>> >> 0xbfe2adb8 M DisplayText>form 0x7ff6d8fc: a(n) DisplayText
>> >> 0xbfe2add8 M DisplayText>displayOn:at:clippingBox:rule:fillColor:
>> >> 0x7ff6d8fc: a(n) DisplayText
>> >> 0xbfe2ae04 M DisplayText(DisplayObject)>displayOn:at: 0x7ff6d8fc: a(n)
>> >> DisplayText
>> >> 0xbfe2ae24 M ByteString(String)>displayOn:at:textColor: 0x7ff6d450:
>> >> a(n) ByteString
>> >> 0xbfe81ca0 M ByteString(String)>displayOn:at: 0x7ff6d450: a(n)
>> >> ByteString
>> >> 0xbfe81cc0 M ByteString(String)>displayAt: 0x7ff6d450: a(n) ByteString
>> >> 0xbfe81cdc M Debugger class(Object)>primitiveError: 0x77dc864c: a(n)
>> >> Debugger class
>> >> 0xbfe81cfc M [] in Debugger
>> >> class>morphicOpenOn:context:label:contents:fullView: 0x77dc864c: a(n)
>> >> Debugger class
>> >> 0xbfe81d18 M BlockClosure>cull: 0x7ff577ac: a(n) BlockClosure
>> >> 0xbfe81d38 M [] in MethodContext(ContextPart)>handleSignal:
>> >> 0x7ff6cc68: a(n) MethodContext
>> >> 0xbfe81d58 M BlockClosure>ensure: 0x7ff6cd24: a(n) BlockClosure
>> >> 0xbfe81d78 M MethodContext(ContextPart)>handleSignal: 0x7ff6cc68: a(n)
>> >> MethodContext
>> >> 0xbfe81d94 M MessageNotUnderstood(Exception)>signal 0x7ff6cad4: a(n)
>> >> MessageNotUnderstood
>> >> 0xbfe81db4 M BitBlt class(Object)>doesNotUnderstand: asGrafPort
>> >> 0x77b22b48: a(n) BitBlt class
>> >> 0xbfe81dd0 M FormCanvas>portClass 0x7ff5ca70: a(n) FormCanvas
>> >> 0xbfe81de8 M FormCanvas>setForm: 0x7ff5ca70: a(n) FormCanvas
>> >> 0xbfe81e04 M FormCanvas class>extent:depth: 0x77b2d750: a(n) FormCanvas
>> >> class
>> >> 0xbfe81e28 M RectangleMorph(Morph)>imageForm:forRectangle: 0x7ff5c550:
>> >> a(n) RectangleMorph
>> >> 0xbfe39d14 M RectangleMorph(Morph)>imageFormForRectangle: 0x7ff5c550:
>> >> a(n) RectangleMorph
>> >> 0xbfe39d30 M RectangleMorph(Morph)>imageForm 0x7ff5c550: a(n)
>> >> RectangleMorph
>> >> 0xbfe39d5c M ScrollBar class>createArrowOfDirection:size:color:
>> >> 0x77b29268: a(n) ScrollBar class
>> >> 0xbfe39d80 M [] in ScrollBar class>createArrowImagesCache 0x77b29268:
>> >> a(n) ScrollBar class
>> >> 0xbfe39db0 M LRUCache>at: 0x785bcddc: a(n) LRUCache
>> >> 0xbfe39dcc M ScrollBar class>arrowOfDirection:size:color: 0x77b29268:
>> >> a(n) ScrollBar class
>> >> 0xbfe39df0 M ScrollBar>upImage 0x7ff5b408: a(n) ScrollBar
>> >> 0xbfe39e10 M ScrollBar>updateUpButtonImage 0x7ff5b408: a(n) ScrollBar
>> >> 0xbfe39e2c M ScrollBar>sliderColor: 0x7ff5b408: a(n) ScrollBar
>> >> 0xbfe44cf8 I ScrollBar>adoptPaneColor: 0x7ff5b408: a(n) ScrollBar
>> >> 0xbfe44d18 M [] in PluggableListMorphPlus(Morph)>adoptPaneColor:
>> >> 0x7ff5ab30: a(n) PluggableListMorphPlus
>> >> 0xbfe44d3c M Array(SequenceableCollection)>do: 0x7ff5bea4: a(n) Array
>> >> 0xbfe44d58 M PluggableListMorphPlus(Morph)>submorphsDo: 0x7ff5ab30:
>> >> a(n) PluggableListMorphPlus
>> >> 0xbfe44d74 M PluggableListMorphPlus(Morph)>adoptPaneColor: 0x7ff5ab30:
>> >> a(n) PluggableListMorphPlus
>> >> 0xbfe44d90 M PluggableListMorphPlus(ScrollPane)>adoptPaneColor:
>> >> 0x7ff5ab30: a(n) PluggableListMorphPlus
>> >> 0xbfe44dc0 M PluggableSystemWindow(SystemWindow)>addMorph:fullFrame:
>> >> 0x7ff5803c: a(n) PluggableSystemWindow
>> >> 0xbfe44de0 M PluggableSystemWindow>addPaneMorph: 0x7ff5803c: a(n)
>> >> PluggableSystemWindow
>> >> 0xbfe44dfc M MorphicToolBuilder>add:to: 0x7ff57880: a(n)
>> >> MorphicToolBuilder
>> >> 0xbfe44e2c M MorphicToolBuilder>buildPluggableList: 0x7ff57880: a(n)
>> >> MorphicToolBuilder
>> >> 0xbfe6ccec M PluggableListSpec>buildWith: 0x7ff57b74: a(n)
>> >> PluggableListSpec
>> >> 0xbfe6cd08 M [] in MorphicToolBuilder(ToolBuilder)>buildAll:in:
>> >> 0x7ff57880: a(n)
>> >>  MorphicToolBuilder
>> >> 0xbfe6cd28 M OrderedCollection>do: 0x7ff578dc: a(n) OrderedCollection
>> >> 0xbfe6cd48 M MorphicToolBuilder(ToolBuilder)>buildAll:in: 0x7ff57880:
>> >> a(n) MorphicToolBuilder
>> >> 0xbfe6cd74 M MorphicToolBuilder>buildPluggableWindow: 0x7ff57880: a(n)
>> >> MorphicToolBuilder
>> >> 0xbfe6cd90 M PluggableWindowSpec>buildWith: 0x7ff57898: a(n)
>> >> PluggableWindowSpec
>> >> 0xbfe6cdb4 I MorphicToolBuilder(ToolBuilder)>build: 0x7ff57880: a(n)
>> >> MorphicToolBuilder
>> >> 0xbfe6cddc I MorphicToolBuilder>open: 0x7ff57880: a(n)
>> >> MorphicToolBuilder
>> >> 0xbfe6ce00 I MorphicToolBuilder(ToolBuilder)>openDebugger: 0x7ff57880:
>> >> a(n) MorphicToolBuilder
>> >> 0xbfe6ce28 M Debugger>openNotifierContents:label: 0x7ff577c4: a(n)
>> >> Debugger
>> >> 0xbfea4d08 M [] in Debugger
>> >> class>morphicOpenOn:context:label:contents:fullView: 0x77dc864c: a(n)
>> >> Debugger class
>> >> 0xbfea4d24 M BlockClosure>on:do: 0x7ff5777c: a(n) BlockClosure
>> >> 0xbfea4d60 M [] in Debugger
>> >> class>morphicOpenOn:context:label:contents:fullView: 0x77dc864c: a(n)
>> >> Debugger class
>> >> 0xbfea4d88 M WorldState>runStepMethodsIn: 0x77834af8: a(n) WorldState
>> >> 0xbfea4da4 M PasteUpMorph>runStepMethods 0x77c6a5ec: a(n) PasteUpMorph
>> >> 0xbfea4dc0 M WorldState>doOneCycleNowFor: 0x77834af8: a(n) WorldState
>> >> 0xbfea4ddc M WorldState>doOneCycleFor: 0x77834af8: a(n) WorldState
>> >> 0xbfea4df8 M PasteUpMorph>doOneCycle 0x77c6a5ec: a(n) PasteUpMorph
>> >> 0xbfea4e10 M [] in Project class>spawnNewProcess 0x77c54960: a(n)
>> >> Project
>> >> class
>> >> 0xbfea4e30 I [] in BlockClosure>newProcess 0x7ff557f4: a(n)
>> >> BlockClosure
>> >>
>> >> Most recent primitives
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> at:put:
>> >> @
>> >> @
>> >> basicNew
>> >> new:
>> >> at:put:
>> >> basicNew
>> >> shallowCopy
>> >> shallowCopy
>> >> at:put:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> at:put:
>> >> @
>> >> @
>> >> basicNew
>> >> new:
>> >> at:put:
>> >> basicNew
>> >> shallowCopy
>> >> shallowCopy
>> >> at:put:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> basicScanCharactersFrom:to:in:rightX:stopConditions:kern:
>> >> new:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> at:put:
>> >> perform:
>> >> at:put:
>> >> species
>> >> new:
>> >> replaceFrom:to:with:startingAt:
>> >> @
>> >> @
>> >> basicNew
>> >> @
>> >> @
>> >> @
>> >> @
>> >> @
>> >> @
>> >> perform:with:
>> >> @
>> >> @
>> >> species
>> >> species
>> >> at:put:
>> >> @
>> >> basicNew
>> >> basicNew:
>> >>
>> >> stack page bytes 4096 available headroom 3300 minimum unused headroom
>> >> 2228
>> >>
>> >> (last object overwritten)
>> >>
>> >> frank
>> >>
>> >
>> >
>> >
>> > --
>> > best,
>> > Eliot
>> >
>> >
>> >
>>
>
>
>
> --
> best,
> Eliot
>
>
>