[Vm-dev] Latest 32bit macOS VM segfaults on Travis

[John McIntosh]

Ok I try to look at this tomorrow as I am not near a computer today 

Sent from my iPhone

> On Dec 23, 2017, at 10:07, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> 
> Hi Fabio, Hi All,
> 
>> On Sat, Dec 23, 2017 at 7:21 AM, Fabio Niephaus <lists at fniephaus.com> wrote:
>>  
>> Hi all,
>> 
>> I'm not up-to-date with the latest macOS display/event changes, but there seems to be a problem with the current code which causes the VM to segfault on Travis (example [1]). Actually, I tried out a VM from Nov 30 and that also seems to segfault, so the problem was introduced at least a month ago. Note that the segfaulting VM runs headful and is supposed to update a base image to produce Squeak-trunk. Can anyone look into this?
>> 
>> Best,
>> Fabio
>> 
>> [1] https://travis-ci.org/squeak-smalltalk/squeak-app/jobs/320661515#L198
> 
> Here's the operative part of the C stack:
> 
> 0   libsystem_c.dylib                   0x9364786c strstr + 33
> 1   Squeak                              0x00150848 reportStackState + 706
> 2   Squeak                              0x00150be8 sigsegv + 183
> 3   libsystem_platform.dylib            0x969ba79b _sigtramp + 43
> 4   ???                                 0xffffffff 0x0 + 4294967295
> 5   Squeak                              0x0014ba49 -[sqSqueakOSXOpenGLView setupOpenGL] + 149
> 6   Squeak                              0x0014c33c -[sqSqueakOSXOpenGLView drawRect:flush:] + 178
> 7   Squeak                              0x0014b8cb -[sqSqueakOSXOpenGLView drawThelayers] + 77
> 8   Squeak                              0x00152400 -[sqSqueakScreenAndWindow ioForceDisplayUpdate] + 180
> 9   Squeak                              0x0015213a ioForceDisplayUpdate + 61
> 10  Squeak                              0x0010e506 primitiveShowDisplayRect + 174
> 11  Squeak                              0x000d94dd interpret + 16201
> 12  Squeak                              0x000e284c enterSmalltalkExecutiveImplementation + 135
> 13  Squeak                              0x000d5887 interpret + 755
> 14  Squeak                              0x00151c92 -[sqSqueakMainApplication runSqueak] + 439
> 
> and it is directly on start-up in the context of this Smalltalk stack:
> 
> 0xbfef9a18 I DisplayScreen>forceToScreen: 0x4be8868: a(n) DisplayScreen
> 0xbfef9a34 M [] in DisplayScreen>forceDamageToScreen: 0x4be8868: a(n) DisplayScreen
> 0xbfef9a54 M OrderedCollection>do: 0x4856238: a(n) OrderedCollection
> 0xbfef9a80 I DisplayScreen>forceDamageToScreen: 0x4be8868: a(n) DisplayScreen
> 0xbfef9aa4 I WorldState>forceDamageToScreen: 0x5a6fbe0: a(n) WorldState
> 0xbfef9adc I WorldState>displayWorld:submorphs: 0x5a6fbe0: a(n) WorldState
> 0xbfef9b04 I PasteUpMorph>privateOuterDisplayWorld 0x502c8f0: a(n) PasteUpMorph
> 0xbfef9b24 I PasteUpMorph>displayWorld 0x502c8f0: a(n) PasteUpMorph
> 0xbfef9b40 M [] in WorldState>displayWorldSafely: 0x5a6fbe0: a(n) WorldState
> 0xbfef9b5c M BlockClosure>on:do: 0x482f130: a(n) BlockClosure
> 0xbfef9b7c M BlockClosure>ifError: 0x482f130: a(n) BlockClosure
> 0xbfef9ba0 I WorldState>displayWorldSafely: 0x5a6fbe0: a(n) WorldState
> 0xbfef9bc4 I PasteUpMorph>displayWorldSafely 0x502c8f0: a(n) PasteUpMorph
> 0xbfef9be4 I PasteUpMorph>install 0x502c8f0: a(n) PasteUpMorph
> 0xbfef9c0c I AutoStart class>checkForUpdates 0x4f017c8: a(n) AutoStart class
> 0xbfef9c2c M AutoStart class>startUp: 0x4f017c8: a(n) AutoStart class
> 0xbfef9c58 M [] in SmalltalkImage>send:toClassesNamedIn:with: 0x4f30dc0: a(n) SmalltalkImage
> 0xbfef9c80 I OrderedCollection>do: 0x51a5b10: a(n) OrderedCollection
> 0xbfef9ca8 I SmalltalkImage>send:toClassesNamedIn:with: 0x4f30dc0: a(n) SmalltalkImage
> 0xbfef9cd4 I SmalltalkImage>processStartUpList: 0x4f30dc0: a(n) SmalltalkImage
> 0xbfef9d00 I SmalltalkImage>snapshot:andQuit:withExitCode:embedded: 0x4f30dc0: a(n) SmalltalkImage
> 
> So is it simply that the OpenGL libraries are unavailable?  Who's an expert with OpenGL on Mac OS X who would take a look?
> 
> _,,,^..^,,,_
> best, Eliot
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