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SnoopPrecompile segfault regression with IOCapture.jl #48837

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#48882
#48875
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SnoopPrecompile segfault regression with IOCapture.jl#48837
#48882
#48875
@mortenpi

Description

@mortenpi
mortenpi
opened on Feb 28, 2023

I don't know if this is a SnoopPrecompile (v1.0.3) issue or a Julia one, but adding the following call to IOCapture.jl:

using SnoopPrecompile
@precompile_all_calls begin
    IOCapture.capture() do
        println("...")
    end
end

Leads to a segfault with 1.10-DEV after e06a591 (#44527 and #47407, cc @timholy @vchuravy; 328dd57 is still good; thanks to @inkydragon for bisecting!).

Full segfault stacktrace 
$ julia --project -e'using Pkg; Pkg.test()'
     Testing IOCapture
      Status `/tmp/jl_xDO7rM/Project.toml`
  [b5f81e59] IOCapture v0.2.2 `~/juliadocs/clones/IOCapture.jl`
  [66db9d55] SnoopPrecompile v1.0.3
  [56ddb016] Logging `@stdlib/Logging`
  [9a3f8284] Random `@stdlib/Random`
  [8dfed614] Test `@stdlib/Test`
      Status `/tmp/jl_xDO7rM/Manifest.toml`
  [b5f81e59] IOCapture v0.2.2 `~/juliadocs/clones/IOCapture.jl`
  [21216c6a] Preferences v1.3.0
  [66db9d55] SnoopPrecompile v1.0.3
  [2a0f44e3] Base64 `@stdlib/Base64`
  [ade2ca70] Dates `@stdlib/Dates`
  [b77e0a4c] InteractiveUtils `@stdlib/InteractiveUtils`
  [56ddb016] Logging `@stdlib/Logging`
  [d6f4376e] Markdown `@stdlib/Markdown`
  [de0858da] Printf `@stdlib/Printf`
  [9a3f8284] Random `@stdlib/Random`
  [ea8e919c] SHA v0.7.0 `@stdlib/SHA`
  [9e88b42a] Serialization `@stdlib/Serialization`
  [fa267f1f] TOML v1.0.3 `@stdlib/TOML`
  [8dfed614] Test `@stdlib/Test`
  [4ec0a83e] Unicode `@stdlib/Unicode`
     Testing Running tests...
[ Info: Running IOCapture.capture

[794841] signal (11.128): Segmentation fault
in expression starting at /home/mortenpi/juliadocs/clones/IOCapture.jl/test/runtests.jl:3
ijl_subtype_env at /home/mortenpi/juliadocs/precompile/julia-bad/src/subtype.c:1867
ijl_isa at /home/mortenpi/juliadocs/precompile/julia-bad/src/subtype.c:2124
jl_tuple1_isa at /home/mortenpi/juliadocs/precompile/julia-bad/src/subtype.c:2029
jl_typemap_entry_assoc_exact at /home/mortenpi/juliadocs/precompile/julia-bad/src/typemap.c:974
jl_typemap_assoc_exact at /home/mortenpi/juliadocs/precompile/julia-bad/src/julia_internal.h:1441 [inlined]
jl_lookup_generic_ at /home/mortenpi/juliadocs/precompile/julia-bad/src/gf.c:2646 [inlined]
ijl_apply_generic at /home/mortenpi/juliadocs/precompile/julia-bad/src/gf.c:2702
sroa_pass! at ./compiler/ssair/passes.jl:967
run_passes at ./compiler/optimize.jl:558
run_passes at ./compiler/optimize.jl:573 [inlined]
optimize at ./compiler/optimize.jl:522 [inlined]
_typeinf at ./compiler/typeinfer.jl:271
typeinf at ./compiler/typeinfer.jl:215
typeinf_ext at ./compiler/typeinfer.jl:1064
typeinf_ext_toplevel at ./compiler/typeinfer.jl:1097
typeinf_ext_toplevel at ./compiler/typeinfer.jl:1093
jfptr_typeinf_ext_toplevel_15062 at /home/mortenpi/juliadocs/precompile/julia-bad/usr/lib/julia/sys.so (unknown line)
jl_apply at /home/mortenpi/juliadocs/precompile/julia-bad/src/julia.h:1875 [inlined]
jl_type_infer at /home/mortenpi/juliadocs/precompile/julia-bad/src/gf.c:312
jl_generate_fptr_impl at /home/mortenpi/juliadocs/precompile/julia-bad/src/jitlayers.cpp:421
jl_compile_method_internal at /home/mortenpi/juliadocs/precompile/julia-bad/src/gf.c:2157 [inlined]
jl_compile_method_internal at /home/mortenpi/juliadocs/precompile/julia-bad/src/gf.c:2098
_jl_invoke at /home/mortenpi/juliadocs/precompile/julia-bad/src/gf.c:2516 [inlined]
ijl_apply_generic at /home/mortenpi/juliadocs/precompile/julia-bad/src/gf.c:2706
capture at /home/mortenpi/juliadocs/clones/IOCapture.jl/src/IOCapture.jl:72
unknown function (ip: 0x7fb3810fc3c2)
jl_apply at /home/mortenpi/juliadocs/precompile/julia-bad/src/julia.h:1875 [inlined]
do_call at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:126
eval_value at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:226
eval_stmt_value at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:177 [inlined]
eval_body at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:624
jl_interpret_toplevel_thunk at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:762
jl_toplevel_eval_flex at /home/mortenpi/juliadocs/precompile/julia-bad/src/toplevel.c:912
jl_toplevel_eval_flex at /home/mortenpi/juliadocs/precompile/julia-bad/src/toplevel.c:856
ijl_toplevel_eval_in at /home/mortenpi/juliadocs/precompile/julia-bad/src/toplevel.c:971
eval at ./boot.jl:370 [inlined]
include_string at ./loading.jl:1522
_include at ./loading.jl:1582
include at ./client.jl:478
unknown function (ip: 0x7fb3810fb082)
jl_apply at /home/mortenpi/juliadocs/precompile/julia-bad/src/julia.h:1875 [inlined]
do_call at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:126
eval_value at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:226
eval_stmt_value at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:177 [inlined]
eval_body at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:624
jl_interpret_toplevel_thunk at /home/mortenpi/juliadocs/precompile/julia-bad/src/interpreter.c:762
jl_toplevel_eval_flex at /home/mortenpi/juliadocs/precompile/julia-bad/src/toplevel.c:912
jl_toplevel_eval_flex at /home/mortenpi/juliadocs/precompile/julia-bad/src/toplevel.c:856
ijl_toplevel_eval_in at /home/mortenpi/juliadocs/precompile/julia-bad/src/toplevel.c:971
eval at ./boot.jl:370 [inlined]
exec_options at ./client.jl:280
_start at ./client.jl:522
jfptr__start_33934 at /home/mortenpi/juliadocs/precompile/julia-bad/usr/lib/julia/sys.so (unknown line)
jl_apply at /home/mortenpi/juliadocs/precompile/julia-bad/src/julia.h:1875 [inlined]
true_main at /home/mortenpi/juliadocs/precompile/julia-bad/src/jlapi.c:573
jl_repl_entrypoint at /home/mortenpi/juliadocs/precompile/julia-bad/src/jlapi.c:717
main at /home/mortenpi/juliadocs/precompile/julia-bad/cli/loader_exe.c:58
unknown function (ip: 0x7fb38da29d8f)
__libc_start_main at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
_start at /home/mortenpi/juliadocs/precompile/julia-bad/usr/bin/julia (unknown line)
Allocations: 2976 (Pool: 2963; Big: 13); GC: 0
ERROR: Package IOCapture errored during testing (received signal: 11)
Stacktrace:
 [1] pkgerror(msg::String)
   @ Pkg.Types ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/Types.jl:68
 [2] test(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; coverage::Bool, julia_args::Cmd, test_args::Cmd, test_fn::Nothing, force_latest_compatible_version::Bool, allow_earlier_backwards_compatible_versions::Bool, allow_reresolve::Bool)
   @ Pkg.Operations ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/Operations.jl:1878
 [3] test(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; coverage::Bool, test_fn::Nothing, julia_args::Cmd, test_args::Cmd, force_latest_compatible_version::Bool, allow_earlier_backwards_compatible_versions::Bool, allow_reresolve::Bool, kwargs::Base.Pairs{Symbol, Base.TTY, Tuple{Symbol}, NamedTuple{(:io,), Tuple{Base.TTY}}})
   @ Pkg.API ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/API.jl:435
 [4] kwcall(::NamedTuple{(:io,), Tuple{Base.TTY}}, ::typeof(Pkg.API.test), ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec})
   @ Pkg.API ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/API.jl:414
 [5] test(pkgs::Vector{Pkg.Types.PackageSpec}; io::Base.TTY, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ Pkg.API ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/API.jl:156
 [6] test(pkgs::Vector{Pkg.Types.PackageSpec})
   @ Pkg.API ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/API.jl:145
 [7] test(; name::Nothing, uuid::Nothing, version::Nothing, url::Nothing, rev::Nothing, path::Nothing, mode::Pkg.Types.PackageMode, subdir::Nothing, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ Pkg.API ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/API.jl:171
 [8] test()
   @ Pkg.API ~/juliadocs/precompile/julia-bad/usr/share/julia/stdlib/v1.10/Pkg/src/API.jl:162
 [9] top-level scope
   @ none:1

It can be reproduced by running a simple snippet in the test environment (I can't replicate it in the normal environment..).

IOCapture.capture() do
    println("println")
end

I have pushed a branch with an MWE and doing julia --project -e'using Pkg; Pkg.test()' with Julia master should reproduce it.

While the error is different, I think it's related to our precompile woes in Documenter where a SnoopPrecompile leads to a strange error after e06a591 that also traces back to IOCapture usage: JuliaDocs/Documenter.jl#2004

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