Guys, I am getting "UTF8InvalidText: Invalid utf8 input detected" quite frequently on Pharo 6.0 which come from ombu background job. Has anything seen this too? Quite annoying... This is not the first time I hit it. This time I analyzed a bit why it was failing and it's because I removed a method manually...I mean, I did MyClass removeSelector: #myMethod And the omEntry is a EpMethodRemoval which represents the exact method I deleted... Also I can see the MultiByteFileStream internal 'collection' is full of none ascii things. I can share a fuelout as well as the image with the files if you want. I can also share the ombu file in question. Contact me in private. ---- [ :error | (OmFileStoreReadingError readingError: error on: self fileReference position: readStream position) signal ] in [ :readStream | [ ^ aBlockClosure value: readStream ascii ] on: Error do: [ :error | (OmFileStoreReadingError readingError: error on: self fileReference position: readStream position) signal ] ] in OmBlockFileStore(OmFileStore)>>readEntriesWith: in Block: [ :error | ... BlockClosure>>cull: Context>>evaluateSignal: Context>>handleSignal: UTF8InvalidText(Exception)>>signal UTF8InvalidText(Exception)>>signal: UTF8TextConverter>>errorMalformedInput UTF8TextConverter>>nextFromStream: MultiByteFileStream>>next MultiByteFileStream(PositionableStream)>>match: MultiByteFileStream(PositionableStream)>>upToAll: OmSTONEntryReader>>nextEntryPositionIfFound:ifNone: OmBlockFileStore>>refreshNewBlocksFrom: [ :readStream | self refreshNewBlocksFrom: readStream ] in OmBlockFileStore>>refreshEntryPositionsByLocalNameStartingAt:since: in Block: [ :readStream | self refreshNewBlocksFrom: readStr...etc... [ ^ aBlockClosure value: readStream ascii ] in [ :readStream | [ ^ aBlockClosure value: readStream ascii ] on: Error do: [ :error | (OmFileStoreReadingError readingError: error on: self fileReference position: readStream position) signal ] ] in OmBlockFileStore(OmFileStore)>>readEntriesWith: in Block: [ ^ aBlockClosure value: readStream ascii ] BlockClosure>>on:do: [ :readStream | [ ^ aBlockClosure value: readStream ascii ] on: Error do: [ :error | (OmFileStoreReadingError readingError: error on: self fileReference position: readStream position) signal ] ] in OmBlockFileStore(OmFileStore)>>readEntriesWith: in Block: [ :readStream | ... [ aBlock value: stream ] in FileReference(AbstractFileReference)>>readStreamDo: in Block: [ aBlock value: stream ] BlockClosure>>ensure: FileReference(AbstractFileReference)>>readStreamDo: OmBlockFileStore(OmFileStore)>>readEntriesWith: OmBlockFileStore>>refreshEntryPositionsByLocalNameStartingAt:since: [ | initialPosition initialLocalName | self entryBuffer isEmpty ifTrue: [ ^ self ]. fileReference writeStreamDo: [ :fileStream | fileStream setToEnd. initialPosition := fileStream position. initialLocalName := self entryBuffer first value. ZnBufferedWriteStream on: fileStream do: [ :aWriteStream | | anEntryWriter | anEntryWriter := self newEntryWriter. [ self entryBuffer isEmpty ] whileFalse: [ | next entry | next := self entryBuffer removeFirst. entry := next key. "Write entry to file" anEntryWriter on: aWriteStream nextEntryPut: entry ] ]. "In Linux it was necessary to explicitely flush the file stream" fileStream flush. lastStreamPosition := fileStream size ]. self refreshEntryPositionsByLocalNameStartingAt: initialPosition since: initialLocalName ] in OmBlockFileStore(OmFileStore)>>flushEntryBuffer in Block: [ | initialPosition initialLocalName |... [ caught := true. self wait. blockValue := mutuallyExcludedBlock value ] in Semaphore>>critical: in Block: [ caught := true.... BlockClosure>>ensure: Semaphore>>critical: OmBlockFileStore(OmFileStore)>>critical: OmBlockFileStore(OmFileStore)>>flushEntryBuffer OmDeferrer>>sendMessage [ self sendMessage ] in OmDeferrer>>flush in Block: [ self sendMessage ] -- Mariano http://marianopeck.wordpress.com