[Vm-dev] Freeze after Morph Activity
Dan Norton
dnorton at mindspring.com
Sun Jan 29 16:56:11 UTC 2017
On 01/29/2017 07:48 AM, Ben Coman wrote:
>
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> On Sun, Jan 29, 2017 at 7:02 PM, Levente Uzonyi <leves at caesar.elte.hu
> <mailto:leves at caesar.elte.hu>> wrote:
>
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> Hi Dan,
>
> The expected output is in the file you attached. There seem to be
> no active processes to run, so only the idle process is being
> executed:
>
> All Smalltalk process stacks (active first):
> Process 0x1c9a9c8 priority 10
> 0x7ffc012e81c0 M ProcessorScheduler class>idleProcess
> 0x15d2a30: a(n) ProcessorScheduler class
> 0x7ffc012e8200 I [] in ProcessorScheduler class>startUp
> 0x15d2a30: a(n) ProcessorScheduler class
> 0x7ffc012e8240 I [] in BlockClosure>newProcess 0x1d1aa40: a(n)
> BlockClosure
>
> Most recent primitives
> relinquishProcessorForMicroseconds:
> relinquishProcessorForMicroseconds:
> relinquishProcessorForMicroseconds:
> relinquishProcessorForMicroseconds:
> relinquishProcessorForMicroseconds:
> relinquishProcessorForMicroseconds:
> ...
>
> Among the suspended processes is the UI process, which is waiting
> on a Delay. So, there may be issues on the image side with Delays.
>
> Process 0x1c9a790 priority 40
> 0x7ffc012e60d8 M [] in Delay>wait 0x1c9ab48: a(n) Delay
> 0x7ffc012e6118 M BlockClosure>ifCurtailed: 0x11b1228: a(n)
> BlockClosure
> 0x7ffc012e6150 M Delay>wait 0x1c9ab48: a(n) Delay
> 0x7ffc012e6190 M WorldState>doOneCycleFor: 0x15cd6e0: a(n)
> WorldState
>
>
> So as part of exploring the problem, an awful hack would be deleting
> that #wait from #dowOneCycleFor:.
Hi Ben,
I started the image by doing this, in effect:
/home/dan/cuis/cogspur64/squeak
/home/dan/cuis/Cuis-Smalltalk-Dev/a64.image > freeze.log 2>&1
After loading packages containing my code I deleted:
(Delay for seconds: ... ) wait.
and ran for a while, did the 'pkill -USR1 -n -x squeak';
ran some more until it froze, did another 'pkill'.
The stdout looked like the other runs. There was no sign of stderr output.
- Dan
>
> cheers -ben
>
> 0x7ffc012e61c8 M PasteUpMorph>doOneCycle 0x165f890: a(n)
> PasteUpMorph
> 0x7ffc012e6200 M [] in ProjectX
> class>spawnNewMorphicProcessFor: 0x15d7900: a(n) ProjectX class
> 0x7ffc012e6240 I [] in BlockClosure>newProcess 0x1d1a940: a(n)
> BlockClosure
>
> I don't see any sign of stack overflow you mentioned.
>
> Levente
>
>
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