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Attempt to parallelize existing program leads to type check failure, with find_method_fallback in the backtrace #3653

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p6rt opened this issue Jan 24, 2015 · 2 comments
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@p6rt
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p6rt commented Jan 24, 2015

Migrated from rt.perl.org#123667 (status was 'open')

Searchable as RT123667$

@p6rt
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p6rt commented Jan 24, 2015

From @moritz

My second attempt to parallelize htmlify.p6 in https://github.com/perl6/docs
lead to this error with interesting backtrace​:

Unhandled exception in code scheduled on thread 140045646284544
Type check failed in binding exception; expected 'Any' but got 'Mu'
  in method break at src/gen/m-CORE.setting​:21155
  in block at src/gen/m-CORE.setting​:21275
  in block at src/gen/m-CORE.setting​:21059
  in any at
/home/moritz/p6/rakudo/install/languages/perl6/runtime/CORE.setting.moarvm​:1
  in method <anon> at src/gen/m-CORE.setting​:14143
  in any find_method_fallback at src/gen/m-Metamodel.nqp​:2730
  in any find_method at src/gen/m-Metamodel.nqp​:988
  in sub write-routine-file at htmlify.p6​:678
  in block at htmlify.p6​:149
  in block at src/gen/m-CORE.setting​:21274
  in block at src/gen/m-CORE.setting​:21059
  in block at src/gen/m-CORE.setting​:20960
  in block at src/gen/m-CORE.setting​:20957

This happens on commit 19d6b9ba35bcb2899671e75cc6837a1c6e0a6d67 of
perl6/doc.

I don't think this should happen; I'm not even aware of anything in the
code (or the dependency, Pod​::To​::HTML) using method fallbacks.

This is perl6 version 2015.01-5-g912a7fa built on MoarVM version
2015.01-5-ga29eaa9

@p6rt
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p6rt commented Aug 31, 2016

@coke - Status changed from 'new' to 'open'

@p6rt p6rt added the conc label Jan 5, 2020
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