So...after debugging the VM, it looks it is crashing in DeflatePlugin >> encodeMatch: length distance: dist
encodeMatch: length distance: dist "Encode the given match of length length starting at dist bytes ahead" | literal distance | <inline: true> zipLiterals at: zipLiteralCount put: length - DeflateMinMatch. zipDistances at: zipLiteralCount put: dist. literal := (zipMatchLengthCodes at: length - DeflateMinMatch). zipLiteralFreq at: literal put: (zipLiteralFreq at: literal) + 1. dist < 257 ifTrue:[distance := zipDistanceCodes at: dist - 1] ifFalse:[distance := zipDistanceCodes at: 256 + (dist - 1 bitShift: -7)]. zipDistanceFreq at: distance put: (zipDistanceFreq at: distance) + 1. zipLiteralCount := zipLiteralCount + 1. zipMatchCount := zipMatchCount + 1. ^zipLiteralCount = zipLiteralSize "We *must* flush" or:[(zipLiteralCount bitAnd: 16rFFF) = 0 "Only check every N kbytes" and:[self shouldFlush]]
When it does: zipDistanceFreq at: distance put: (zipDistanceFreq at: distance) + 1. it gives a EXC_BAD_ACCESS. distance value is 1444965993
The sender is #deflateBlock: lastIndex chainLength: chainLength goodMatch: goodMatch and sender #primitiveDeflateBlock
If I do a call printAllStacks(), I get this part:
(gdb) call printAllStacks() Process 0x1f70c924 priority 40 0xbff65968 M GZipWriteStream(DeflateStream)>deflateBlock 555574892: a(n) GZipWriteStream 0xbff6598c M GZipWriteStream(DeflateStream)>nextPutAll: 555574892: a(n) GZipWriteStream 0xbff659a8 M GZipWriteStream(DeflateStream)>next:putAll:startingAt: 555574892: a(n) GZipWriteStream 0xbff659cc M FLBufferedWriteStream>flushBuffer 556072120: a(n) FLBufferedWriteStream 0xbff659e4 M FLBufferedWriteStream>nextBytesPutAll: 556072120: a(n) FLBufferedWriteStream 0xbff65a04 M FLBufferedWriteStream>nextStringPut: 556072120: a(n) FLBufferedWriteStream 0xbff65a24 M [] in FLVariablesMapping>serializeMappingOn: 557179132: a(n) FLVariablesMapping 0xbff65a44 M OrderedCollection>do: 557179148: a(n) OrderedCollection 0xbff65a64 M FLVariablesMapping>serializeMappingOn: 557179132: a(n) FLVariablesMapping 0xbff65a80 M FLFixedObjectCluster(FLPointerObjectCluster)>serializeInstancesStepWith: 556081188: a(n) FLFixedObjectCluster 0xbff65a9c M FLSerialization>clusterInstancesStepOf: 556076884: a(n) FLSerialization 0xbff65ab8 M [] in FLSerialization>instancesStep 556076884: a(n) FLSerialization
And from the gdb I get:
#0 0x000b3721 in deflateBlockchainLengthgoodMatch at ZipPlugin.c:303 #1 0x000b4a62 in primitiveDeflateBlock at ZipPlugin.c:719 #2 0x1f400858 in ?? #3 0x00067820 in threadSchedulingLoop at gcc3x-cointerpmt.c:45853 #4 0x0003d79b in initialEnterSmalltalkExecutive at gcc3x-cointerpmt.c:18372 #5 0x0003e45f in initStackPagesAndInterpret at gcc3x-cointerpmt.c:18839 #6 0x00022ae8 in interpret at gcc3x-cointerpmt.c:2076 #7 0x0006df20 in -[sqSqueakMainApplication runSqueak] at sqSqueakMainApplication.m:174 #8 0x92ee186c in __NSFirePerformWithOrder #9 0x967fadd2 in __CFRunLoopDoObservers #10 0x967b6ced in __CFRunLoopRun #11 0x967b63c4 in CFRunLoopRunSpecific #12 0x967b61f1 in CFRunLoopRunInMode #13 0x98262e04 in RunCurrentEventLoopInMode #14 0x98262af5 in ReceiveNextEventCommon #15 0x98262a3e in BlockUntilNextEventMatchingListInMode #16 0x93159595 in _DPSNextEvent #17 0x93158dd6 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] #18 0x9311b1f3 in -[NSApplication run] #19 0x93113289 in NSApplicationMain #20 0x0006bec9 in main at main.m:52
Any pointer is appreaciated.
THanks
On Fri, Dec 2, 2011 at 11:57 PM, Diogenes Moreira < diogenes.moreira@gmail.com> wrote:
en que SO estas corriendo..primitiva ?? por otro lado que tenes en el PharoDebug.Log
http://about.me/diogenes.moreira
2011/12/2 Mariano Martinez Peck marianopeck@gmail.com:
Hi guys. We are doing some experiments with Fuel and GZip streams... Now
I
have a beatiful test like this:
testMethodContextThisContext
| materializedContext context | context := thisContext copy. materializedContext := self resultOfSerializeAndMaterialize: context.and it crashes like crazy. From the VM crash stack, I can see:
Smalltalk stack dump: 0xbff66ba4 M GZipWriteStream(DeflateStream)>deflateBlock 447551436: a(n) GZipWriteStream 0xbff66bc8 M GZipWriteStream(DeflateStream)>nextPutAll: 447551436: a(n) GZipWriteStream 0xbff66be4 M GZipWriteStream(DeflateStream)>next:putAll:startingAt: 447551436: a(n) GZipWriteStream 0xbff66c08 M FLBufferedWriteStream>flushBuffer 448048664: a(n) FLBufferedWriteStream 0xbff66c20 M FLBufferedWriteStream>nextBytesPutAll: 448048664: a(n) FLBufferedWriteStream 0xbff66c40 M FLBufferedWriteStream>nextStringPut: 448048664: a(n) FLBufferedWriteStream 0xbff66c5c M FLByteStringCluster>serialize:on: 448054196: a(n) FLByteStringCluster 0xbff66c7c M
FLByteStringCluster(FLPrimitiveCluster)>serializeInstance:with:
448054196: a(n) FLByteStringCluster 0xbff66ca0 M [] in FLByteStringCluster(FLIteratingCluster)>serializeInstances: 448054196:
a(n)
FLByteStringCluster 0xbff66cc8 M IdentitySet(Set)>do: 451711680: a(n) IdentitySet 0xbff66ce4 M FLByteStringCluster(FLIteratingCluster)>serializeInstances: 448054196: a(n) FLByteStringCluster 0xbff66d00 M FLByteStringCluster(FLIteratingCluster)>serializeInstancesStepWith: 448054196: a(n) FLByteStringCluster 0xbff66d1c M FLSerialization>clusterInstancesStepOf: 448053428: a(n) FLSerialization 0xbff66d38 M [] in FLSerialization>instancesStep 448053428: a(n) FLSerialization 0xbff66d58 M OrderedCollection>do: 449989736: a(n) OrderedCollection 0xbff66d74 M FLSerialization>instancesStep 448053428: a(n)
FLSerialization
0xbff66d8c M FLSerialization>run 448053428: a(n) FLSerialization 0xbff66db0 I [] in FLSerializer>defaultSerialization 447550464: a(n) FLSerializer 0xbff66dd8 M [] in FLSerializer>serialize:on: 447550464: a(n)
FLSerializer
0xbff66df8 M BlockClosure>ensure: 448052884: a(n) BlockClosure 0xbff66e18 M FLSerializer>serialize:on: 447550464: a(n) FLSerializer 0xbff66e3c M [] in FLMethodContextSerializationTest(FLSerializationTest)>serialize:
447235380:
a(n) FLMethodContextSerializationTest 0xbff66e60 M [] in GZipWriteStream class(PositionableStream class)>on:do: 419845144: a(n) GZipWriteStream class 0xbff66e80 M BlockClosure>ensure: 448048616: a(n) BlockClosure 0xbff66ea0 M GZipWriteStream class(PositionableStream class)>on:do: 419845144: a(n) GZipWriteStream class 0xbff66ec4 M [] in FLGZipStrategy>writeStreamDo: 447550896: a(n) FLGZipStrategy 0xbff66ee0 M FLByteArrayStreamStrategy>writeStreamDo: 447550884: a(n) FLByteArrayStreamStrategy 0xbff66efc M FLGZipStrategy>writeStreamDo: 447550896: a(n) FLGZipStrategy 0xbff66f18 M FLMethodContextSerializationTest(FLSerializationTest)>serialize:
447235380:
a(n) FLMethodContextSerializationTest 0xbff66f34 M
FLMethodContextSerializationTest(FLSerializationTest)>resultOfSerializeAndMaterialize:
447235380: a(n) FLMethodContextSerializationTest 0xbff66f58 M
FLMethodContextSerializationTest>testMethodContextThisContext
447235380: a(n) FLMethodContextSerializationTest
any idea of where I should start to look at?
Thanks
-- Mariano http://marianopeck.wordpress.com