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segfault fresh Pharo5.0 download w/pharo VM version: 5.0 #1 Wed May 4 11:54:28 CEST 2016 gcc 4.6.3 [Production Spur ITHB VM]

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Dale Henrichs-3

segfault fresh Pharo5.0 download w/pharo VM version: 5.0 #1 Wed May 4 11:54:28 CEST 2016 gcc 4.6.3 [Production Spur ITHB VM]

Attached crash.dmp file ... running Ubuntu14.04 and here's a bit of
Smalltalk stack:

0xffb7d03c I FreeTypeFace(FT2Face)>newFaceFromExternalMemory:index:
0xbc98a58: a(n) FreeTypeFace
0xffb7d064 I FreeTypeFace>create 0xbc98a58: a(n) FreeTypeFace
0xffb7d084 I FreeTypeFace>validate 0xbc98a58: a(n) FreeTypeFace
0xffb7d0a4 I FreeTypeFont>face 0xb86ade0: a(n) FreeTypeFont
0xffb7d0fc I
FreeTypeSubPixelAntiAliasedGlyphRenderer>renderStretchedGlyph:depth:subpixelPosition:font:
0x9e2b218: a(n) FreeTypeSubPixelAntiAliasedGlyphRenderer
0xffb7d130 I
FreeTypeSubPixelAntiAliasedGlyphRenderer>subGlyphOf:colorValue:mono:subpixelPosition:font:
0x9e2b218: a(n) FreeTypeSubPixelAntiAliasedGlyphRenderer
....snip....
0xbceb0b8 s WorldMorph>displayWorld
0xbceb118 s [] in WorldState>displayWorldSafely:
0xbceb178 s BlockClosure>on:do:
0xbceb1d8 s BlockClosure>ifError:
0xbceb238 s WorldState>displayWorldSafely:
0xbceb298 s WorldState>doOneCycleNowFor:
0xbceb2f8 s WorldState>doOneCycleFor:
0xbceb358 s WorldMorph>doOneCycle
0xb95ca30 s [] in MorphicUIManager>spawnNewProcess
0xb767510 s [] in BlockClosure>newProcess

vm/image combo dowloaded yesterday launches without errors, so I don't
think it's my environment that is the source of the segfault ...

I was doing a fresh build from a bash script and from the looks of the
last couple of lines it looks like that there are new changes in this
image from yesterday:

"Postscript:
Leave the line above, and replace the rest of this comment by a useful one.
Executable statements should follow this comment, and should
be separated by periods, with no exclamation points (!!).
Be sure to put any further comments in double-quotes, like this one."

|repository|
repository := MCHttpRepository
location: 'http://smalltalkhub.com/mc/Pharo/Pharo50/main'
user: ''
password: ''.
(repository
loadVersionFromFileNamed:'ScriptLoader50-EstebanLorenzano.975.mcz') load.
ScriptLoader new update50761.
!

----End fileIn----!

----QUIT----2016-07-29T12:18:23.980837+02:00 Pharo.image priorSource:
215270!

----QUIT----2016-07-29T12:18:29.473484+02:00 Pharo.image priorSource:
234661!

If you look at the bottom of the stack you will notice that
WorldState>doOneCycle is being called and that's suspiciously similar to
the issue I reported yesterday[1] ... but a segfault this time instead
of an MNU..

I will go through the drill of trying to see which part of the script is
hitting this problem and provide more info ...

It would be nice to get a clean build sooner rather than later :)

Dale

[1] https://pharo.fogbugz.com/f/cases/18706#BugEvent.170987

crash.dmp (17K) Download Attachment

Dale Henrichs-3

Re: segfault fresh Pharo5.0 download w/pharo VM version: 5.0 #1 Wed May 4 11:54:28 CEST 2016 gcc 4.6.3 [Production Spur ITHB VM]

Yesterday I reported that I was using the following script combination:

./pharo Pharo.image save xxx; ./pharo xxx.image --quit --save ./boom.st

and that the MNU was being hit during the second case when I was loading
boom.st and the same thing is true today, but instead of an MNU I'm
getting a segFault and the execution of boom.st is not even getting a
chance to start as here is stdout:

foos:test> ./pharo xxx.image --quit --save ./boom.st

Segmentation fault Fri Jul 29 11:12:12 2016

/export/foos1/users/dhenrich/dev/_home/dev/clients/test/pharo-vm/pharo
pharo VM version: 5.0 #1 Wed May 4 11:54:28 CEST 2016 gcc 4.6.3
[Production Spur ITHB VM]
Built from: CoInterpreter VMMaker.oscog-eem.1855 uuid:
d8e4a3c2-a3bf-4adc-b224-8012903a1ef4 May 4 2016
With: StackToRegisterMappingCogit VMMaker.oscog-eem.1855 uuid:
d8e4a3c2-a3bf-4adc-b224-8012903a1ef4 May 4 2016

And as happened yesterday saving the Pharo.image after bringing it up
interactively "fixes the problem"... and skipping the `./pharo
Pharo.image save xxx` avoids the problem as well ..

Dale

On 07/29/2016 11:04 AM, Dale Henrichs wrote:

> Attached crash.dmp file ... running Ubuntu14.04 and here's a bit of
> Smalltalk stack:
>
> 0xffb7d03c I FreeTypeFace(FT2Face)>newFaceFromExternalMemory:index:
> 0xbc98a58: a(n) FreeTypeFace
> 0xffb7d064 I FreeTypeFace>create 0xbc98a58: a(n) FreeTypeFace
> 0xffb7d084 I FreeTypeFace>validate 0xbc98a58: a(n) FreeTypeFace
> 0xffb7d0a4 I FreeTypeFont>face 0xb86ade0: a(n) FreeTypeFont
> 0xffb7d0fc I
> FreeTypeSubPixelAntiAliasedGlyphRenderer>renderStretchedGlyph:depth:subpixelPosition:font:
> 0x9e2b218: a(n) FreeTypeSubPixelAntiAliasedGlyphRenderer
> 0xffb7d130 I
> FreeTypeSubPixelAntiAliasedGlyphRenderer>subGlyphOf:colorValue:mono:subpixelPosition:font:
> 0x9e2b218: a(n) FreeTypeSubPixelAntiAliasedGlyphRenderer
> ....snip....
> 0xbceb0b8 s WorldMorph>displayWorld
> 0xbceb118 s [] in WorldState>displayWorldSafely:
> 0xbceb178 s BlockClosure>on:do:
> 0xbceb1d8 s BlockClosure>ifError:
> 0xbceb238 s WorldState>displayWorldSafely:
> 0xbceb298 s WorldState>doOneCycleNowFor:
> 0xbceb2f8 s WorldState>doOneCycleFor:
> 0xbceb358 s WorldMorph>doOneCycle
> 0xb95ca30 s [] in MorphicUIManager>spawnNewProcess
> 0xb767510 s [] in BlockClosure>newProcess
>
>
> vm/image combo dowloaded yesterday launches without errors, so I don't
> think it's my environment that is the source of the segfault ...
>
> I was doing a fresh build from a bash script and from the looks of the
> last couple of lines it looks like that there are new changes in this
> image from yesterday:
>
> "Postscript:
> Leave the line above, and replace the rest of this comment by a useful
> one.
> Executable statements should follow this comment, and should
> be separated by periods, with no exclamation points (!!).
> Be sure to put any further comments in double-quotes, like this one."
>
> |repository|
> repository := MCHttpRepository
> location: 'http://smalltalkhub.com/mc/Pharo/Pharo50/main'
> user: ''
> password: ''.
> (repository
> loadVersionFromFileNamed:'ScriptLoader50-EstebanLorenzano.975.mcz') load.
> ScriptLoader new update50761.
> !
>
> ----End fileIn----!
>
> ----QUIT----2016-07-29T12:18:23.980837+02:00 Pharo.image priorSource:
> 215270!
>
> ----QUIT----2016-07-29T12:18:29.473484+02:00 Pharo.image priorSource:
> 234661!
>
> If you look at the bottom of the stack you will notice that
> WorldState>doOneCycle is being called and that's suspiciously similar
> to the issue I reported yesterday[1] ... but a segfault this time
> instead of an MNU..
>
> I will go through the drill of trying to see which part of the script
> is hitting this problem and provide more info ...
>
> It would be nice to get a clean build sooner rather than later :)
>
> Dale
>
> [1] https://pharo.fogbugz.com/f/cases/18706#BugEvent.170987