crash after StackOverflowError

[mzaffalon]

using Dictionaries: dictionary

struct Bcode
    code::Int
end

Base.convert(::Type{String}, b::Bcode) = dictionary([Bcode(1) => "Z"])[b]
Base.show(io::IO, c::Bcode) = print(io, "$(convert(String, c))")

julia> Bcode(1)
Z

julia> Bcode(2)
Error showing value of type Bcode:
ERROR: StackOverflowError:
<snip>

julia> Bcode(2)
PS C:\Users\michele.zaffalon>

I do expect the StackOverflowError but when I try a second time, Julia quits. This seems to be a Windows only problem.

(test2) pkg> st
Status `C:\Users\michele.zaffalon\test2\Project.toml`
  [85a47980] Dictionaries v0.3.24

julia> versioninfo()
Julia Version 1.8.1
Commit afb6c60d69 (2022-09-06 15:09 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: 6 × Intel(R) Core(TM) i5-8500 CPU @ 3.00GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, skylake)
  Threads: 1 on 6 virtual cores
Environment:
  JULIA_DEPOT_PATH = C:\Users\michele.zaffalon\.julia
  JULIA_PKG_USE_CLI_GIT = true

Ref: https://discourse.julialang.org/t/repl-crashes-with-custom-pretty-printing-and-dictionaries/87622

[BioTurboNick]

Interesting - the REPL frames aren't being stripped out of the trace? (Is that normal for StackOverflows?)

This is the termination stack trace I get on my Windows machine

GC error (probable corruption) :
Allocations: 1460128 (Pool: 1459571; Big: 557); GC: 1

!!! ERROR in jl_ -- ABORTING !!!
0000000061f96070: Queued root: 0000000010e544b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96088: Queued root: 0000000014c65160 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f960a0: Queued root: 0000000014c69bf0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f960b8: Queued root: 0000000010029490 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f960d0: Queued root: 0000000014b42ff0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f960e8: Queued root: 0000000010e64ad0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96100: Queued root: 0000000013d71d00 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f96118: Queued root: 0000000011c362e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96130: Queued root: 000000001017a770 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f96148: Queued root: 0000000012d38ac0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96160: Queued root: 0000000010113180 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96178: Queued root: 000000001022b040 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96190: Queued root: 00000000105f1170 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f961a8: Queued root: 0000000014e33ce0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f961c0: Queued root: 0000000011b803d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f961d8: Queued root: 0000000013740b30 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f961f0: Queued root: 000000001070f5b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96208: Queued root: 0000000011e6f6d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96220: Queued root: 0000000010712a40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96238: Queued root: 00000000101785c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96250: Queued root: 0000000013a486d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96268: Queued root: 0000000013610560 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96280: Queued root: 000000001195ebb0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96298: Queued root: 0000000013d71f90 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f962b0: Queued root: 0000000012d524a0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f962c8: Queued root: 00000000120880f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f962e0: Queued root: 00000000117e1650 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f962f8: Queued root: 000000001246b5f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96310: Queued root: 0000000012470920 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96328: Queued root: 00000000123ec780 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96340: Queued root: 000000001070dca0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96358: Queued root: 00000000131b8a30 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96370: Queued root: 000000001442fa00 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96388: Queued root: 0000000014012e90 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f963a0: Queued root: 0000000011918bb0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f963b8: Queued root: 00000000119183b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f963d0: Queued root: 0000000014430610 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f963e8: Queued root: 0000000013a0f830 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96400: Queued root: 0000000012899d70 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96418: Queued root: 00000000108933f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96430: Queued root: 000000001487ff90 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96448: Queued root: 0000000012cdd2c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96460: Queued root: 0000000012c72600 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96478: Queued root: 00000000118482b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96490: Queued root: 00000000138859e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f964a8: Queued root: 000000001117c4d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f964c0: Queued root: 000000001231d1e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f964d8: Queued root: 0000000012f9a490 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f964f0: Queued root: 0000000013ece610 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96508: Queued root: 000000001408ba40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96520: Queued root: 000000001281a6b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96538: Queued root: 00000000122a8f10 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96550: Queued root: 0000000012f96de0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96568: Queued root: 000000001408c2c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96580: Queued root: 0000000013ecf380 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96598: Queued root: 0000000011bf9f90 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f965b0: Queued root: 0000000011678ae0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f965c8: Queued root: 0000000011188640 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f965e0: Queued root: 00000000127e56f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f965f8: Queued root: 0000000012886e60 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96610: Queued root: 0000000012ee0e90 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96628: Queued root: 0000000012637400 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96640: Queued root: 0000000012020c50 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96658: Queued root: 0000000012022040 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96670: Queued root: 00000000111271b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96688: Queued root: 00000000111285d0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f966a0: Queued root: 0000000012f996e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f966b8: Queued root: 000000001408cf60 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f966d0: Queued root: 0000000013551b40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f966e8: Queued root: 0000000011d41540 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96700: Queued root: 0000000011b19fe0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96718: Queued root: 00000000125a2110 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96730: Queued root: 0000000011532690 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96748: Queued root: 000000001153a210 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96760: Queued root: 00000000125154c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96778: Queued root: 0000000011c6d280 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96790: Queued root: 0000000011b4ccc0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f967a8: Queued root: 00000000125a4360 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f967c0: Queued root: 000000001153a670 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f967d8: Queued root: 0000000011532d40 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f967f0: Queued root: 0000000012f24100 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96808: Queued root: 0000000012f265e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96820: Queued root: 0000000012f28800 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96838: Queued root: 0000000012f28940 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96850: Queued root: 0000000010448010 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96868: Queued root: 0000000014b2b500 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f96880: Queued root: 0000000012f266f0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96898: Queued root: 0000000012f23c80 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f968b0: Queued root: 0000000012f24250 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f968c8: Queued root: 00000000108a59d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f968e0: Queued root: 0000000012573040 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f968f8: Queued root: 0000000011199d00 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96910: Queued root: 0000000014112e00 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96928: Queued root: 00000000129bfcc0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96940: Queued root: 0000000010601820 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96958: Queued root: 00000000127a70d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96970: Queued root: 0000000014dd6570 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96988: Queued root: 00000000125a3600 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f969a0: Queued root: 000000001184a780 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f969b8: Queued root: 000000001184be40 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f969d0: Queued root: 00000000117e3290 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f969e8: Queued root: 0000000011ea2000 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96a00: Queued root: 0000000012cfa8c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96a18: Queued root: 000000001181f710 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96a30: Queued root: 0000000011b667a0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96a48: Queued root: 0000000011b6abc0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96a60: Queued root: 000000001304d8a0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96a78: Queued root: 0000000013f03ba0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96a90: Queued root: 00000000131b3a60 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96aa8: Queued root: 0000000013577720 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96ac0: Queued root: 0000000013567c80 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96ad8: Queued root: 00000000100f44a0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96af0: Queued root: 0000000012bf3510 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96b08: Queued root: 0000000011b90080 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96b20: Queued root: 00000000119db210 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96b38: Queued root: 0000000012ee92f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96b50: Queued root: 0000000011d181b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96b68: Queued root: 0000000014708ba0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96b80: Queued root: 0000000010eb7340 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96b98: Queued root: 0000000010eb5e10 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96bb0: Queued root: 0000000010eb8f70 :: 000000000ffad660 (bits: 3)
        of type Method
0000000061f96bc8: Queued root: 00000000118d5c00 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96be0: Queued root: 00000000103686e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96bf8: Queued root: 0000000012c11910 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96c10: Queued root: 0000000012c95d40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96c28: Queued root: 0000000012ca33d0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96c40: Queued root: 00000000107deb70 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96c58: Queued root: 0000000012c24ce0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96c70: Queued root: 0000000012045770 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96c88: Queued root: 0000000010e69a40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96ca0: Queued root: 0000000014cc6380 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96cb8: Queued root: 0000000012f57a40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96cd0: Queued root: 0000000014e3d950 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96ce8: Queued root: 00000000135d6a90 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96d00: Queued root: 0000000013887030 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96d18: Queued root: 000000001167f2f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96d30: Queued root: 0000000011439430 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96d48: Queued root: 00000000117310d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96d60: Queued root: 0000000014061f20 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96d78: Queued root: 0000000012ec64c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96d90: Queued root: 0000000012045250 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96da8: Queued root: 00000000113d4f00 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96dc0: Queued root: 0000000014cc5330 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96dd8: Queued root: 0000000011c43ac0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96df0: Queued root: 0000000012b7b1f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96e08: Queued root: 0000000013117d00 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96e20: Queued root: 0000000012f60a10 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96e38: Queued root: 0000000012f58840 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96e50: Queued root: 0000000012f20490 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96e68: Queued root: 00000000125e6fc0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96e80: Queued root: 000000001201fa50 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96e98: Queued root: 0000000010815e50 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96eb0: Queued root: 0000000010817b60 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96ec8: Queued root: 0000000014cc26c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96ee0: Queued root: 0000000014cc2bb0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96ef8: Queued root: 00000000114d8410 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96f10: Queued root: 00000000120cce70 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96f28: Queued root: 000000001435e470 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96f40: Queued root: 0000000010b08130 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f96f58: Queued root: 00000000127aa220 :: 000000000ffad660 (bits: 3)
        of type Method
0000000061f96f70: Queued root: 0000000013672730 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96f88: Queued root: 00000000136236a0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96fa0: Queued root: 00000000139dda50 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96fb8: Queued root: 00000000136253c0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f96fd0: Queued root: 00000000100f3840 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f96fe8: Queued root: 0000000013672810 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97000: Queued root: 000000001216c100 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97018: Queued root: 00000000111e00d0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97030: Queued root: 00000000103b5ca0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97048: Queued root: 00000000122a41b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97060: Queued root: 00000000101d76b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97078: Queued root: 00000000139a1250 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97090: Queued root: 0000000011c4d820 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f970a8: Queued root: 0000000011d32380 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f970c0: Queued root: 0000000013d35f10 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f970d8: Queued root: 0000000011c4c8d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f970f0: Queued root: 0000000011d316d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97108: Queued root: 00000000128ded30 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97120: Queued root: 0000000014070db0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97138: Queued root: 0000000014023770 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97150: Queued root: 0000000014071390 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97168: Queued root: 0000000013869690 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97180: Queued root: 000000001386da10 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97198: Queued root: 0000000011d32a80 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f971b0: Queued root: 0000000013f36a40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f971c8: Queued root: 0000000011c4ec50 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f971e0: Queued root: 0000000010fb6600 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f971f8: Queued root: 0000000011e0b840 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97210: Queued root: 00000000116e1ae0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97228: Queued root: 0000000011e99a40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97240: Queued root: 0000000012a431e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97258: Queued root: 0000000011f0d420 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97270: Queued root: 0000000010606310 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97288: Queued root: 0000000013125840 :: 000000000ffad660 (bits: 3)
        of type Method
0000000061f972a0: Queued root: 0000000013ea24b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f972b8: Queued root: 0000000012f71700 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f972d0: Queued root: 00000000124cf9b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f972e8: Queued root: 00000000124d07e0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97300: Queued root: 0000000013023030 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97318: Queued root: 0000000011ea17e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97330: Queued root: 0000000011bf2ab0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97348: Queued root: 0000000011d8dfc0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97360: Queued root: 00000000118ae1c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97378: Queued root: 00000000118be670 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97390: Queued root: 0000000014b62520 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f973a8: Queued root: 0000000010fb1520 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f973c0: Queued root: 00000000110d7a10 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f973d8: Queued root: 0000000011bca780 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f973f0: Queued root: 00000000121b63d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97408: Queued root: 00000000121c1d00 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97420: Queued root: 00000000121d47c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97438: Queued root: 00000000122e1870 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97450: Queued root: 0000000014cafb80 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97468: Queued root: 0000000014cbfcc0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97480: Queued root: 0000000015085160 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97498: Queued root: 0000000015090dc0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f974b0: Queued root: 0000000014cc0ad0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f974c8: Queued root: 0000000014cb0260 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f974e0: Queued root: 00000000122e1b50 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f974f8: Queued root: 00000000122f70e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97510: Queued root: 00000000121c2000 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97528: Queued root: 000000000ffac000 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97540: Queued root: 000000000ffa7cd0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97558: Queued root: 000000000fe3ce20 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97570: Queued root: 00000000121b6690 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97588: Queued root: 00000000122dc5b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f975a0: Queued root: 00000000110d7cc0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f975b8: Queued root: 000000001380b4b0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f975d0: Queued root: 000000001103fc40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f975e8: Queued root: 0000000010fb68e0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97600: Queued root: 0000000014b6d6d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97618: Queued root: 00000000150bc310 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97630: Queued root: 00000000150e1880 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97648: Queued root: 0000000015092930 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97660: Queued root: 000000001006ddf0 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f97678: Queued root: 0000000014b89690 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97690: Queued root: 0000000014b6f140 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f976a8: Queued root: 00000000130f72e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f976c0: Queued root: 00000000144348b0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f976d8: Queued root: 0000000011918d40 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f976f0: Queued root: 0000000010854130 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97708: Queued root: 0000000010853cf0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97720: Queued root: 0000000010852940 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97738: Queued root: 0000000014c24ce0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97750: Queued root: 0000000014441fe0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97768: Queued root: 00000000131a6750 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97780: Queued root: 0000000010141140 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97798: Queued root: 0000000010290e30 :: 000000000ffa7450 (bits: 3)
        of type Module
0000000061f977b0: Queued root: 00000000119f1dc0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f977c8: Queued root: 0000000010851700 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f977e0: Queued root: 0000000014f677f0 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f977f8: Queued root: 0000000014f83fb0 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97810: Queued root: 0000000014f8bed0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97828: Queued root: 0000000014f8f2e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97840: Queued root: 00000000125bb990 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97858: Queued root: 00000000143d4160 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97870: Queued root: 0000000013d7d770 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97888: Queued root: 000000001392b560 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f978a0: Queued root: 0000000011acafb0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f978b8: Queued root: 0000000011f4c3f0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f978d0: Queued root: 00000000113d7460 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f978e8: Queued root: 0000000011b1a770 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97900: Queued root: 00000000107afee0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97918: Queued root: 00000000103d4df0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97930: Queued root: 00000000110c44c0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97948: Queued root: 00000000103acd40 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97960: Queued root: 0000000012dc4240 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97978: Queued root: 000000001361a930 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97990: Queued root: 0000000013984f50 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f979a8: Queued root: 00000000101b3820 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f979c0: Queued root: 000000001180b550 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f979d8: Queued root: 0000000014100e90 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f979f0: Queued root: 00000000113d2d60 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97a08: Queued root: 0000000010f55960 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97a20: Queued root: 0000000014439730 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97a38: Queued root: 0000000014458190 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97a50: Queued root: 00000000135e9210 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97a68: Queued root: 000000001474bbd0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97a80: Queued root: 0000000013ef6fc0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97a98: Queued root: 0000000013ef79e0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97ab0: Queued root: 0000000012a7b190 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97ac8: Queued root: 0000000013e44df0 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97ae0: Queued root: 0000000012a6e240 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97af8: Queued root: 0000000012a6e2d0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97b10: Queued root: 00000000105df600 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97b28: Queued root: 0000000012e7d8c0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97b40: Queued root: 00000000129927a0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97b58: Queued root: 0000000012bce430 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97b70: Queued root: 0000000012e4d830 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97b88: Queued root: 00000000110c7300 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97ba0: Queued root: 0000000010815df0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97bb8: Queued root: 00000000125cc310 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97bd0: Queued root: 00000000125cfff0 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97be8: Queued root: 00000000125d5f80 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97c00: Queued root: 00000000125d0d90 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97c18: Queued root: 0000000014117b90 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97c30: Queued root: 0000000010068440 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97c48: Queued root: 00000000128c2a00 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97c60: Queued root: 0000000012307ba0 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97c78: Queued root: 0000000012309260 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97c90: Queued root: 0000000014728f80 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97ca8: Queued root: 0000000014829320 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97cc0: Queued root: 0000000012a7f8f0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97cd8: Queued root: 000000001049c740 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97cf0: Queued root: 000000001017fa00 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97d08: Queued root: 00000000129d0890 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97d20: Queued root: 00000000128ae5b0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97d38: Queued root: 00000000122b15f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97d50: Queued root: 0000000012e8dbb0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97d68: Queued root: 0000000010943ce0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97d80: Queued root: 0000000011796730 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97d98: Queued root: 000000001489a180 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97db0: Queued root: 000000001487ff30 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97dc8: Queued root: 0000000010068570 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97de0: Queued root: 00000000147a2f10 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97df8: Queued root: 000000001017f8d0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97e10: Queued root: 00000000140f5320 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97e28: Queued root: 000000001398fea0 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97e40: Queued root: 0000000013991660 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97e58: Queued root: 000000001069b610 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97e70: Queued root: 00000000120dd7a0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97e88: Queued root: 0000000012d95540 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97ea0: Queued root: 0000000012cfd800 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97eb8: Queued root: 00000000103d5420 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97ed0: Queued root: 00000000103685a0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97ee8: Queued root: 0000000010163840 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f97f00: Queued root: 000000001484e430 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97f18: Queued root: 0000000013196430 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97f30: Queued root: 0000000012385cb0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97f48: Queued root: 0000000013a57460 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97f60: Queued root: 0000000013d29090 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97f78: Queued root: 00000000118f1800 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f97f90: Queued root: 00000000128a7580 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97fa8: Queued root: 0000000010e532f0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97fc0: Queued root: 00000000136016c0 :: 000000000ffaed00 (bits: 3)
        of type Core.TypeMapEntry
0000000061f97fd8: Queued root: 0000000012d8ad70 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f97ff0: Queued root: 000000001266abe0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98008: Queued root: 00000000127acdd0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98020: Queued root: 0000000014363a00 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f98038: Queued root: 0000000014363a40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98050: Queued root: 000000001505ee80 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f98068: Queued root: 0000000014adf6e0 :: 0000000010634660 (bits: 3)
        of type Array{Module, 1}
0000000061f98080: Queued root: 0000000014adff50 :: 000000001016b540 (bits: 3)
        of type Array{Base.PkgId, 1}
0000000061f98098: Queued root: 0000000014ab5f20 :: 0000000010634660 (bits: 3)
        of type Array{Module, 1}
0000000061f980b0: Queued root: 000000001461d240 :: 0000000010634660 (bits: 3)
        of type Array{Module, 1}
0000000061f980c8: Queued root: 0000000014eedfb0 :: 000000001034d840 (bits: 3)
        of type Core.TypeMapLevel
0000000061f980e0: Queued root: 0000000014e641f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f980f8: Queued root: 0000000013eb1df0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98110: Queued root: 000000001365d6e0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98128: Queued root: 00000000107fddb0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98140: Queued root: 0000000011e94e20 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98158: Queued root: 00000000140a6b40 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98170: Queued root: 0000000013f641f0 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98188: Queued root: 00000000118f1840 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f981a0: Queued root: 0000000013892180 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f981b8: Queued root: 0000000012ed0140 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f981d0: Queued root: 0000000011de3370 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f981e8: Queued root: 000000001505ce80 :: 000000000fe370c0 (bits: 3)
        of type Core.SimpleVector
0000000061f98200: Queued root: 00000000148daac0 :: 000000001068d660 (bits: 3)
        of type Base.Dict{Base.PkgId, Base.PkgOrigin}
0000000061f98218: Queued root: 00000000148dab10 :: 000000001068d700 (bits: 3)
        of type Array{Base.PkgOrigin, 1}
0000000061f98230: Queued root: 00000000148dc7b0 :: 000000001016b540 (bits: 3)
        of type Array{Base.PkgId, 1}
0000000061f98248: Queued root: 000000001084bcc0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98260: Queued root: 0000000014817d20 :: 00000000103af960 (bits: 3)
        of type Array{Base.CachedTOMLDict, 1}
0000000061f98278: Queued root: 0000000014818e90 :: 000000000ffc9a20 (bits: 3)
        of type Array{String, 1}
0000000061f98290: Queued root: 0000000014819c10 :: 000000000ffc9a20 (bits: 3)
        of type Array{String, 1}
0000000061f982a8: Queued root: 0000000014819700 :: 000000001015f8e0 (bits: 3)
        of type Base.TOML.Parser
0000000061f982c0: Queued root: 000000001038afb0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f982d8: Queued root: 00000000106fbd80 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f982f0: Queued root: 000000001038b8c0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98308: Queued root: 000000001021dff0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98320: Queued root: 000000001010a710 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98338: Queued root: 0000000010a74ec0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98350: Queued root: 000000001039f980 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98368: Queued root: 0000000012356b10 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98380: Queued root: 000000001088ad30 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98398: Queued root: 000000001021f260 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f983b0: Queued root: 000000001021f9f0 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f983c8: Queued root: 000000001038a520 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f983e0: Queued root: 00000000104e7750 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f983f8: Queued root: 00000000100d3020 :: 000000000ffaf570 (bits: 3)
        of type Core.MethodTable
0000000061f98410: Queued root: 0000000014ba1b50 :: 000000000ffa79c0 (bits: 3)
        of type Array{Any, 1}
0000000061f98428:  r-- Object (8bit) 0000000013dd90c0 :: 0000000010230083 -- [1, 2)
        of type Base.InvasiveLinkedList{Task}
0000000061f98448:   `- Stack frame 000000005b25f620 -- 2 of 764607304 (direct)

signal (22): SIGABRT
in expression starting at none:0
crt_sig_handler at /cygdrive/c/buildbot/worker/package_win64/build/src\signals-win.c:93
raise at C:\WINDOWS\System32\msvcrt.dll (unknown line)
abort at C:\WINDOWS\System32\msvcrt.dll (unknown line)
gc_assert_datatype_fail at /cygdrive/c/buildbot/worker/package_win64/build/src\gc.c:1712
gc_mark_loop at /cygdrive/c/buildbot/worker/package_win64/build/src\gc.c:2768
_jl_gc_collect at /cygdrive/c/buildbot/worker/package_win64/build/src\gc.c:3097
ijl_gc_collect at /cygdrive/c/buildbot/worker/package_win64/build/src\gc.c:3326
maybe_collect at /cygdrive/c/buildbot/worker/package_win64/build/src\gc.c:903 [inlined]
jl_gc_pool_alloc_inner at /cygdrive/c/buildbot/worker/package_win64/build/src\gc.c:1247 [inlined]
jl_gc_pool_alloc_noinline at /cygdrive/c/buildbot/worker/package_win64/build/src\gc.c:1306
jl_gc_alloc_ at /cygdrive/c/buildbot/worker/package_win64/build/src\julia_internal.h:369 [inlined]
ijl_box_uint64 at /cygdrive/c/buildbot/worker/package_win64/build/src\datatype.c:1182
lookup at .\stacktraces.jl:114
stacktrace at .\stacktraces.jl:163
stacktrace at .\stacktraces.jl:161 [inlined]
scrub_repl_backtrace at .\client.jl:87
jfptr_scrub_repl_backtrace_44664.clone_1 at C:\Users\nicho\.julia\juliaup\julia-1.8.1+0.x64\lib\julia\sys.dll (unknown line)
scrub_repl_backtrace at .\client.jl:94
print_response at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.8\REPL\src\REPL.jl:289
#45 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.8\REPL\src\REPL.jl:278
jfptr_YY.45_67814.clone_1 at C:\Users\nicho\.julia\juliaup\julia-1.8.1+0.x64\lib\julia\sys.dll (unknown line)
with_repl_linfo at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.8\REPL\src\REPL.jl:521
jfptr_with_repl_linfo_68336.clone_1 at C:\Users\nicho\.julia\juliaup\julia-1.8.1+0.x64\lib\julia\sys.dll (unknown line)
print_response at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.8\REPL\src\REPL.jl:276
do_respond at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.8\REPL\src\REPL.jl:857
jfptr_do_respond_68806.clone_1 at C:\Users\nicho\.julia\juliaup\julia-1.8.1+0.x64\lib\julia\sys.dll (unknown line)
jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1838 [inlined]
jl_f__call_latest at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:774
#invokelatest#2 at .\essentials.jl:729 [inlined]
invokelatest at .\essentials.jl:726 [inlined]
run_interface at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.8\REPL\src\LineEdit.jl:2510
run_frontend at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.8\REPL\src\REPL.jl:1248
#49 at .\task.jl:484
jfptr_YY.49_68331.clone_1 at C:\Users\nicho\.julia\juliaup\julia-1.8.1+0.x64\lib\julia\sys.dll (unknown line)
jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1838 [inlined]
start_task at /cygdrive/c/buildbot/worker/package_win64/build/src\task.c:931
Allocations: 1460128 (Pool: 1459571; Big: 557); GC: 1

[BioTurboNick]

So the crash seems to be happening in the stacktrace lookup method, when the GC is triggered?

[vtjnash]

We now at least first print a warning about this, since this is still quite likely to fail on any platform, which cannot be fully fixed:

Warning: detected a stack overflow; program state may be corrupted, so further execution might be unreliable.

The specific issue here is that jl_push_excstack may need a lot of stack, but this example is just an infinite recursion of calling the print function, but that function calls @lock, and that doesn't leave enough stack space to use that function. We'd need some way to defer that until we first notice the user needs the result (e.g. some sort of throw, rethrow, or other result that needs to clobber the buffer again)