backtrace.txt

Operation 'bind_key' cannot obtain write lock for VMHash; error code=-16
   at NQP::src/HLL/Compiler.nqp:754  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/NQPHLL.moarvm:linefileof)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:1479  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:compile_annotation)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:1439  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:compile_node)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:696  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:as_mast)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:1518  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:compile_all_the_stmts
)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:1081  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:1059  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:1006  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:compile_node)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:700  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:as_mast)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:845  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:compile_node)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:700  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:as_mast)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:420  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:to_mast)
 from NQP::src/vm/moar/QAST/QASTCompilerMAST.nqp:2217  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/QAST.moarvm:to_mast)
 from NQP::src/vm/moar/HLL/Backend.nqp:790  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/NQPHLL.moarvm:mast)
 from NQP::src/HLL/Compiler.nqp:462  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/NQPHLL.moarvm:execute_stage)
 from NQP::src/HLL/Compiler.nqp:501  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/NQPHLL.moarvm:run)
 from NQP::src/HLL/Compiler.nqp:504  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/NQPHLL.moarvm:)
 from NQP::src/HLL/Compiler.nqp:496  (/home/vrurg/src/Raku/rakudo/install/share/nqp/lib/NQPHLL.moarvm:compile)
 from SETTING::src/core.c/ForeignCode.rakumod:105  (/home/vrurg/src/Raku/rakudo/install/share/perl6/runtime/CORE.c.setting.moarvm:)
 from SETTING::src/core.c/ForeignCode.rakumod:61  (/home/vrurg/src/Raku/rakudo/install/share/perl6/runtime/CORE.c.setting.moarvm:EVAL)
 from SETTING::src/core.c/CompUnit/PrecompilationDependency/File.rakumod:37  (/home/vrurg/src/Raku/rakudo/install/share/perl6/runtime/CORE.
c.setting.moarvm:)
 from SETTING::src/core.c/CompUnit/PrecompilationDependency/File.rakumod:25  (/home/vrurg/src/Raku/rakudo/install/share/perl6/runtime/CORE.
c.setting.moarvm:spec)
 from SETTING::src/core.c/CompUnit/PrecompilationRepository.rakumod:186  (/home/vrurg/src/Raku/rakudo/install/share/perl6/runtime/CORE.c.se
tting.moarvm:)
 from SETTING::src/core.c/CompUnit/PrecompilationRepository.rakumod:183  (/home/vrurg/src/Raku/rakudo/install/share/perl6/runtime/CORE.c.se
tting.moarvm:)

RakuAST is likely to be free of the problem as it doesn't use HLL::Compiler.

Sadly, this is not true.

% rak HLL::Compiler src/Raku 
src/Raku/Grammar.nqp
421:HLL::Compiler.lineof($B.orig(), $B.from(), :cache(1))
584:line => HLL::Compiler.lineof($cursor.orig, $cursor.pos, :cache(1)),
644::line-real(HLL::Compiler.lineof(self.orig(), self.from(), :cache(1)))
2193:line   => HLL::Compiler.lineof($/.orig, $/.from, :cache(1))
2208:line   => HLL::Compiler.lineof($/.orig, $/.from, :cache(1))
2223:line   => HLL::Compiler.lineof($/.orig, $/.from, :cache(1))

src/Raku/ast/origins.rakumod
43:#      backend compilation code. It currently relies upon HLL::Compiler.linefileof() method which might be unreliable.

Having said that, we can probably get rid of it.

Oh, no! That's exactly why I have developed ast/origins.rakumod back then!