printing all stacks gives more clues: looks like we are causing an mnu at startup, I'm not sure yet why that ends in a crashed image. Maybe it happens too soon during initialization.

(gdb) p printAllStacks()

Process�� 0x4131ba8 priority 50

�� 0x7ffffffa46d8 M ExternalAddress>finalize 0x45e39c8: a(n) ExternalAddress

�� 0x7ffffffa4710 M WeakFinalizerItem>finalizeValues 0x45e3070: a(n) WeakFinalizerItem

�� 0x7ffffffa4748 M [] in WeakRegistry>finalizeValues 0x157fb18: a(n) WeakRegistry

�� 0x7ffffffa4778 M BlockClosure>on:do: 0xc643c0: a(n) BlockClosure

�� 0x7ffffffa47b8 M BlockClosure>on:fork: 0xc643c0: a(n) BlockClosure

�� 0x7ffffffa47f8 M [] in WeakRegistry>finalizeValues 0x157fb18: a(n) WeakRegistry

�� 0x7ffffffa4840 M OrderedCollection>do: 0xc63b38: a(n) OrderedCollection

�� 0x7ffffffa4890 M WeakRegistry>finalizeValues 0x157fb18: a(n) WeakRegistry

�� 0x7ffffffa48c8 M [] in WeakArray class>doOldFinalization 0x1598518: a(n) WeakArray class

�� 0x7ffffffa48f8 M BlockClosure>on:do: 0xc63a00: a(n) BlockClosure

�� 0x7ffffffa4938 M BlockClosure>on:fork: 0xc63a00: a(n) BlockClosure

�� 0x7ffffffa4978 M [] in WeakArray class>doOldFinalization 0x1598518: a(n) WeakArray class

�� 0x7ffffffa49c0 M WeakArray(SequenceableCollection)>do: 0x12fe7f0: a(n) WeakArray

�� 0x7ffffffa49f8 M [] in WeakArray class>doOldFinalization 0x1598518: a(n) WeakArray class

�� 0x7ffffffa4a38 M [] in Semaphore>critical: 0x4131b88: a(n) Semaphore

�� 0x7ffffffa4a78 M BlockClosure>ensure: 0xc5e260: a(n) BlockClosure

�� 0x7ffffffa4ab8 M Semaphore>critical: 0x4131b88: a(n) Semaphore

�� 0x7ffffffa4b00 I WeakArray class>doOldFinalization 0x1598518: a(n) WeakArray class

�� 0x7ffffffa4b50 I WeakArray class>finalizationProcess 0x1598518: a(n) WeakArray class

�� 0x45c3c90 s [] in WeakArray class>restartFinalizationProcess

�� 0x4136d78 s [] in BlockClosure>newProcess

processes at priority 40

Process�� 0x3591a98 priority 40

�� 0x7ffffffa68a0 M IdentityDictionary(Dictionary)>at:ifAbsent: 0x174b880: a(n) IdentityDictionary

�� 0x7ffffffa68e8 M Unicode class>toUppercase: 0x1f977b8: a(n) Unicode class

�� 0x7ffffffa6920 M Character>asUppercase 0x21a=$67 ($C)

�� 0x7ffffffa6958 M Character>isVowel 0x21a=$67 ($C)

�� 0x7ffffffa69a0 M ClassSessionHandler(Object)>printOn: 0x1801578: a(n) ClassSessionHandler

�� 0x7ffffffa69d8 M ClassSessionHandler(AbstractSessionHandler)>printOn: 0x1801578: a(n) ClassSessionHandler

�� 0x7ffffffa6a10 M LimitedWriteStream(Stream)>print: 0xa5f8a8: a(n) LimitedWriteStream

�� 0x7ffffffa6a50 M [] in Array(Collection)>printElementsOn: 0xa5f3e0: a(n) Array

�� 0x7ffffffa6a98 M Array(SequenceableCollection)>do:separatedBy: 0xa5f3e0: a(n) Array

�� 0x7ffffffa6ad8 M Array(Collection)>printElementsOn: 0xa5f3e0: a(n) Array

�� 0x7ffffffa6b10 M Array(Collection)>printOn: 0xa5f3e0: a(n) Array

�� 0x7ffffffa6b48 M Array>printOn: 0xa5f3e0: a(n) Array

�� 0x7ffffff9e600 M [] in Array(Object)>printStringLimitedTo: 0xa5f3e0: a(n) Array

�� 0x7ffffff9e640 M String class(SequenceableCollection class)>streamContents:limitedTo: 0x15990e8: a(n) String class

�� 0x7ffffff9e688 M Array(Object)>printStringLimitedTo: 0xa5f3e0: a(n) Array

�� 0x7ffffff9e6c0 M [] in Context>printDetails: 0xa5f5c8: a(n) Context

�� 0x7ffffff9e6f0 M BlockClosure>on:do: 0xa5fa80: a(n) BlockClosure

�� 0x7ffffff9e730 M BlockClosure>ifError: 0xa5fa80: a(n) BlockClosure

�� 0x7ffffff9e788 M Context>printDetails: 0xa5f5c8: a(n) Context

�� 0x7ffffff9e7e8 I Context>errorReportOn: 0xa5e858: a(n) Context

�� 0x7ffffff9e830 M [] in SmalltalkImage>logError:inContext: 0x19b62b8: a(n) SmalltalkImage

�� 0x7ffffff9e878 M [] in SmalltalkImage>logDuring: 0x19b62b8: a(n) SmalltalkImage

�� 0x7ffffff9e8b8 M BlockClosure>ensure: 0xa5fd28: a(n) BlockClosure

�� 0x7ffffff9e908 I SmalltalkImage>logDuring: 0x19b62b8: a(n) SmalltalkImage

�� 0x7ffffff9e950 I SmalltalkImage>logError:inContext: 0x19b62b8: a(n) SmalltalkImage

�� 0x7ffffff9e9a0 I StartupUIManager(UIManager)>logError: 0x459ee98: a(n) StartupUIManager

�� 0x7ffffff9e9e8 I StartupUIManager(CommandLineUIManager)>handleError:log: 0x459ee98: a(n) StartupUIManager

�� 0x7ffffff9ea38 I StartupUIManager>handleError:log: 0x459ee98: a(n) StartupUIManager

�� 0x7ffffff9ea88 I StartupUIManager(UIManager)>handleError: 0x459ee98: a(n) StartupUIManager

�� 0x7ffffff9eac0 M [] in WorkingSession>runList:do: 0xa5e000: a(n) WorkingSession

�� 0x7ffffff9eaf8 M BlockClosure>cull: 0xa5f2e0: a(n) BlockClosure

�� 0x7ffffff9eb48 I Context>evaluateSignal: 0xa5e5e0: a(n) Context

�� 0x7ffffff9c570 I Context>handleSignal: 0xa5e5e0: a(n) Context

�� 0x7ffffff9c5b8 I MessageNotUnderstood(Exception)>signal 0xa5e750: a(n) MessageNotUnderstood

�� 0x7ffffff9c608 I SmalltalkImage(Object)>doesNotUnderstand: isSqueakNOS 0x19b62b8: a(n) SmalltalkImage

�� 0x7ffffff9c650 I SqueakNOSPlatform class>isActivePlatform 0x4222160: a(n) SqueakNOSPlatform class

�� 0x7ffffff9c680 M [] in OSPlatform class>determineActivePlatform 0x1f28ac8: a(n) OSPlatform class

�� 0x7ffffff9c6c8 M [] in OrderedCollection(Collection)>detect:ifFound:ifNone: 0xa5eae0: a(n) OrderedCollection

�� 0x7ffffff9c710 M OrderedCollection>do: 0xa5eae0: a(n) OrderedCollection

�� 0x7ffffff9c758 I OrderedCollection(Collection)>detect:ifFound:ifNone: 0xa5eae0: a(n) OrderedCollection

�� 0x7ffffff9c7b0 I OrderedCollection(Collection)>detect:ifNone: 0xa5eae0: a(n) OrderedCollection

�� 0x7ffffff9c800 I OrderedCollection(Collection)>detect: 0xa5eae0: a(n) OrderedCollection

�� 0x7ffffff9c848 I OSPlatform class>determineActivePlatform 0x1f28ac8: a(n) OSPlatform class

�� 0x7ffffff9c888 I OSPlatform class>startUp: 0x1f28ac8: a(n) OSPlatform class

�� 0x7ffffff9c8c0 M ClassSessionHandler>startup: 0x17e6f18: a(n) ClassSessionHandler

�� 0x7ffffff9c900 M [] in WorkingSession>runStartup: 0xa5e000: a(n) WorkingSession

�� 0x7ffffff9c948 M [] in WorkingSession>runList:do: 0xa5e000: a(n) WorkingSession

�� 0x7ffffff9c978 M BlockClosure>on:do: 0xa5f2b0: a(n) BlockClosure

�� 0x7ffffff9c9c0 M [] in WorkingSession>runList:do: 0xa5e000: a(n) WorkingSession

�� 0x7ffffff9ca08 M Array(SequenceableCollection)>do: 0xa5f3e0: a(n) Array

�� 0x7ffffff9ca50 I WorkingSession>runList:do: 0xa5e000: a(n) WorkingSession

�� 0x7ffffff9caa0 I WorkingSession>runStartup: 0xa5e000: a(n) WorkingSession

�� 0x7ffffff9cae8 I WorkingSession>start: 0xa5e000: a(n) WorkingSession

�� 0x7ffffff9cb40 I SessionManager>snapshot:andQuit: 0x358f268: a(n) SessionManager

�� 0x45e2ca0 s [] in SmalltalkImage>snapshot:andQuit:

�� 0x45e36b0 s CurrentExecutionEnvironment class>activate:for:

�� 0x45e4e48 s DefaultExecutionEnvironment(ExecutionEnvironment)>beActiveDuring:

�� 0x45e5170 s DefaultExecutionEnvironment class>beActiveDuring:

�� 0x45e4f00 s SmalltalkImage>snapshot:andQuit:

�� 0x45e5228 s SmalltalkImage>saveImageInFileNamed:

�� 0x45e53c8 s SmalltalkImage>saveAs:

�� 0x4184cc8 s UndefinedObject>DoIt

�� 0x45c3bd8 s OpalCompiler>evaluate

�� 0x4184de8 s DoItChunk>importFor:

�� 0x4184ec0 s [] in CodeImporter>evaluate

�� 0x45c3e00 s OrderedCollection>do:

�� 0x4184ff8 s CodeImporter>evaluate

�� 0x45c3eb8 s [] in STCommandLineHandler>installSourceFile:

�� 0x41bc0b8 s BlockClosure>on:do:

�� 0x4185150 s STCommandLineHandler>handleErrorsDuring:reference:

�� 0x4185220 s STCommandLineHandler>installSourceFile:

�� 0x45c3f70 s [] in STCommandLineHandler>installSourceFiles

�� 0x45e3440 s OrderedCollection>do:

�� 0x4185318 s [] in STCommandLineHandler>installSourceFiles

�� 0x45c4028 s BlockClosure>ensure:

�� 0x4185410 s STCommandLineHandler>installSourceFiles

�� 0x45c40e0 s STCommandLineHandler>activate

�� 0x45e34f8 s STCommandLineHandler class(CommandLineHandler class)>activateWith:

�� 0x45e4cd8 s [] in PharoCommandLineHandler(BasicCommandLineHandler)>activateSubCommand:

�� 0x41bc170 s BlockClosure>on:do:

�� 0x4185518 s PharoCommandLineHandler(BasicCommandLineHandler)>activateSubCommand:

�� 0x41855f0 s PharoCommandLineHandler(BasicCommandLineHandler)>handleSubcommand

�� 0x45c4198 s PharoCommandLineHandler(BasicCommandLineHandler)>handleArgument:

�� 0x41856a8 s [] in PharoCommandLineHandler(BasicCommandLineHandler)>activate

�� 0x41bc228 s BlockClosure>on:do:

�� 0x41857a0 s PharoCommandLineHandler(BasicCommandLineHandler)>activate

�� 0x45c4250 s PharoCommandLineHandler>activate

�� 0x45e35b0 s PharoCommandLineHandler class(CommandLineHandler class)>activateWith:

�� 0x45e4d90 s [] in PharoCommandLineHandler class>activateWith:

�� 0x45e50b8 s WorldState>runStepMethodsIn:

�� 0x45e5310 s WorldMorph>runStepMethods

�� 0x3847ff8 s WorldState>doOneCycleNowFor:

�� 0x38480b0 s WorldState>doOneCycleFor:

�� 0x3848168 s WorldMorph>doOneCycle

�� 0x3848220 s WorldMorph class>doOneCycle

�� 0x3591d60 s [] in MorphicUIManager>spawnNewProcess

�� 0x3591ae0 s [] in BlockClosure>newProcess

processes at priority 10

Process�� 0xa5e138 priority 10

�� 0xa60638 s [] in BlockClosure>newProcess

suspended processes

Process�� 0x38c7548 priority 80

�� 0x38c58f0 s DelaySpinScheduler(DelayMicrosecondScheduler)>runTimerEventLoop

�� 0x411d130 s [] in DelaySpinScheduler(DelayMicrosecondScheduler)>startTimerEventLoop

�� 0x38c59c8 s [] in BlockClosure>newProcess

Process�� 0xa5e0f0 priority 60

�� 0x7ffffffa0ad0 I SmalltalkImage>lowSpaceWatcher 0x19b62b8: a(n) SmalltalkImage

�� 0x7ffffffa0b10 I [] in SmalltalkImage>installLowSpaceWatcher 0x19b62b8: a(n) SmalltalkImage

�� 0x7ffffffa0b50 I [] in BlockClosure>newProcess 0xa60060: a(n) BlockClosure

Process�� 0xa5e180 priority 60

�� 0x7ffffffa2a78 I InputEventFetcher>waitForInput 0x1d0f310: a(n) InputEventFetcher

�� 0x7ffffffa2ad0 I InputEventFetcher>eventLoop 0x1d0f310: a(n) InputEventFetcher

�� 0x7ffffffa2b10 I [] in InputEventFetcher>installEventLoop 0x1d0f310: a(n) InputEventFetcher

�� 0x7ffffffa2b50 I [] in BlockClosure>newProcess 0xa60258: a(n) BlockClosure

On Fri, Mar 23, 2018 at 11:54 AM, Javier Pim��s <elpochodelagente@gmail.com> wrote:

Hi Eliot, the crash.dmp shows what I put in the first mail, gdb shows some more info:

#0�� __GI___libc_free (mem=0x7f15fc1d15d0) at malloc.c:2965
#1�� 0x00000000004c745b in primitiveFFIFree () at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/src/plugins/SqueakFFIPrims/X64SysVFFIPlugin.c:6352
#2�� 0x0000000000457f64 in primitiveExternalCall () at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:75751
#3�� 0x00000000004595cb in interpretMethodFromMachineCode () at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:18524
#4�� 0x000000000045bc69 in ceSendsupertonumArgs (selector=<optimized out>, superNormalBar=0, rcvr=<optimized out>, numArgs=0)
�� at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:16602
#5�� 0x00000000009000bb in ?? ()
#6�� 0x00007fffffffdbc0 in ?? ()
#7�� 0x000000000045ce56 in interpret () at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:2731
#8�� 0x00000000009ccf7f in ?? ()
#9�� 0x00000000045e39c8 in ?? ()
#10 0x00000000045e39c8 in ?? ()
...

As it is just loading, I think that it is trying to free some memory that was allocated before the image was saved. Looks like there is an external address that should have been niled but for some reason wasn't.

On Fri, Mar 23, 2018 at 11:43 AM, Eliot Miranda <eliot.miranda@gmail.com> wrote:
Hi Javier,

�� what does the crash.dmp file say?�� Or what does a gdb stacktrace say?

_,,,^..^,,,_ (phone)

On Mar 23, 2018, at 7:18 AM, Javier Pim��s <elpochodelagente@gmail.com> wrote:

no luck with this one :(

On Fri, Mar 23, 2018 at 4:48 AM, Alistair Grant <akgrant0710@gmail.com> wrote:
Hi Javier,

On 23 March 2018 at 04:54, Javier Pim��s <elpochodelagente@gmail.com> wrote:
> Hi folks, I take a fresh Pharo6.1 (spur64), load a git repository and save
> the image. When reopening I get a segmentation fault. OS is ubuntu 17.04/64
> bits. I just cannot make it work, tried with all the vms I could (vmI61,
> vmT61, vmLatest70, vmTLatest70). I suspect it is related to using git but
> I'm not even sure.
>
> Below I put the involved code, crash dump at the end (seems to be the same
> with any vm). btw, the vmILatest70 script does not seem to work (curl
> https://get.pharo.org/64/vmILatest70 | bash).
>
> Any ideas?

I'm using the following VM on Ubuntu 16.04 without any issues:

http://files.pharo.org/vm/pharo-spur64/linux/pharo-linux-x86_64threaded-201803160215-43a2f5c.zip

HTH,
Alistair

--
Javier Pim��s
Ciudad de Buenos Aires

--
Javier Pim��s
Ciudad de Buenos Aires

Javier Pim��s
Ciudad de Buenos Aires