Segmentation fault, EDIT: Signal 6 - has somebody a clue?

Hi there,
I am using IRTools to manipulate some intermediate representation, so this may be quite deep into julia.

Out of a sudden, I have no clue what is going on, I get the following segmentation fault signal 6:

signal (6): Aborted
in expression starting at REPL[2]:1
gsignal at /usr/lib/libc.so.6 (unknown line)
abort at /usr/lib/libc.so.6 (unknown line)
__assert_fail_base.cold.0 at /usr/lib/libc.so.6 (unknown line)
__assert_fail at /usr/lib/libc.so.6 (unknown line)
emit_ssaval_assign at /buildworker/worker/package_linux64/build/src/codegen.cpp:4021
emit_stmtpos at /buildworker/worker/package_linux64/build/src/codegen.cpp:4273 [inlined]
emit_function at /buildworker/worker/package_linux64/build/src/codegen.cpp:6843
jl_emit_code at /buildworker/worker/package_linux64/build/src/codegen.cpp:7205
jl_emit_codeinst at /buildworker/worker/package_linux64/build/src/codegen.cpp:7250
_jl_compile_codeinst at /buildworker/worker/package_linux64/build/src/jitlayers.cpp:124
jl_generate_fptr at /buildworker/worker/package_linux64/build/src/jitlayers.cpp:352
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:1970
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:2236 [inlined]
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2229 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
Out at /home/ssahm/.julia/dev/IsDef/src/generic.jl:16
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
_extract_type_or_typevalue_ANDTHEN_Out_ANDTHEN_to_typelevel_or_typevalue at /home/ssahm/.julia/dev/IsDef/src/generic.jl:21
unknown function (ip: 0x7f72a2a867bc)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
_Out_dynamo at ./array.jl:606 [inlined]
_Out_dynamo at /home/ssahm/.julia/packages/IRTools/46viC/src/reflection/dynamo.jl:0
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
Out at /home/ssahm/.julia/dev/IsDef/src/generic.jl:16
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
_extract_type_or_typevalue_ANDTHEN_Out_ANDTHEN_to_typelevel_or_typevalue at /home/ssahm/.julia/dev/IsDef/src/generic.jl:21
unknown function (ip: 0x7f72a2a6c853)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
_Out_dynamo at ./abstractarray.jl:2294 [inlined]
_Out_dynamo at /home/ssahm/.julia/packages/IRTools/46viC/src/reflection/dynamo.jl:0
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
Out at /home/ssahm/.julia/dev/IsDef/src/generic.jl:16
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
#Out#39 at /home/ssahm/.julia/dev/IsDef/src/IsDef.jl:106
Out at /home/ssahm/.julia/dev/IsDef/src/IsDef.jl:101 [inlined]
#Out#38 at /home/ssahm/.julia/dev/IsDef/src/IsDef.jl:98 [inlined]
Out at /home/ssahm/.julia/dev/IsDef/src/IsDef.jl:98
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
do_call at /buildworker/worker/package_linux64/build/src/interpreter.c:115
eval_value at /buildworker/worker/package_linux64/build/src/interpreter.c:204
eval_stmt_value at /buildworker/worker/package_linux64/build/src/interpreter.c:155 [inlined]
eval_body at /buildworker/worker/package_linux64/build/src/interpreter.c:562
jl_interpret_toplevel_thunk at /buildworker/worker/package_linux64/build/src/interpreter.c:670
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:877
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:825
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:825
jl_toplevel_eval_in at /buildworker/worker/package_linux64/build/src/toplevel.c:929
eval at ./boot.jl:360 [inlined]
eval_user_input at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:139
repl_backend_loop at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:200
start_repl_backend at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:185
#run_repl#42 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:317
run_repl at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:305
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
#874 at ./client.jl:387
jfptr_YY.874_41532.clone_1 at /nix/store/kc6915w8f9f4lqx58qyry8q99h6z60x9-julia-bin-1.6.1/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_f__call_latest at /buildworker/worker/package_linux64/build/src/builtins.c:714
#invokelatest#2 at ./essentials.jl:708 [inlined]
invokelatest at ./essentials.jl:706 [inlined]
run_main_repl at ./client.jl:372
exec_options at ./client.jl:302
_start at ./client.jl:485
jfptr__start_34289.clone_1 at /nix/store/kc6915w8f9f4lqx58qyry8q99h6z60x9-julia-bin-1.6.1/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
true_main at /buildworker/worker/package_linux64/build/src/jlapi.c:560
repl_entrypoint at /buildworker/worker/package_linux64/build/src/jlapi.c:702
main at julia (unknown line)
__libc_start_main at /usr/lib/libc.so.6 (unknown line)
unknown function (ip: 0x4007d8)
Allocations: 49636252 (Pool: 49620145; Big: 16107); GC: 66
[1]    13795 IOT instruction (core dumped)  julia

The code which produces this error is not yet easily available, maybe someone knows help by just seeing this stacktrace

I would recommend trying this with a debug build and starting Julia with the -g2 option. You can get that by building Julia from source with make debug. That should hopefully give you a more helpful error.

If that doesn’t help, you could give gdb a try, but this can be a little intimidating if you haven’t used it before. You can find some Julia-specific tips for using gdb here.

2 Likes

Where do you see a segmentation fault? Signal 6 is abort

1 Like

Maybe a quick thing to try first is running the code with julia --check-bounds=yes

1 Like

Right, it’s an assertion failure. Probably this one:

Your IR is likely malformed; you have an SSA (static single assignment) that’s trying to be assigned to twice.

4 Likes

thank you all, it is unbelievably great to have so much support

is there a way to display the SSA before everything crashes?

EDIT: I guess debugging could do it :smiley:

1 Like

Julia make debug unfortunately fails on my system… still investigating, but I fear my time is too limited for such quite time-consuming debugging.

I am now going to make my state reproducible. If anyone has any other idea for simplifying the debugging, all hints are cordially welcome.

It is now reproducible

julia> using Pkg
julia> pkg"add https://github.com/schlichtanders/IsDef.jl#irtools-approach"
julia>  using IsDef; Out(Base.map, typeof(identity), Vector{Int})
[... super large output of a couple of intermediate debugging information]

the signal 6 I get here is the following:

julia: /buildworker/worker/package_linux64/build/src/codegen.cpp:4021: void emit_ssaval_assign(jl_codectx_t&, ssize_t, jl_value_t*): Assertion `!ctx.ssavalue_assigned.at(idx)' failed.

signal (6): Aborted
in expression starting at REPL[2]:1
gsignal at /usr/lib/libc.so.6 (unknown line)
abort at /usr/lib/libc.so.6 (unknown line)
__assert_fail_base.cold.0 at /usr/lib/libc.so.6 (unknown line)
__assert_fail at /usr/lib/libc.so.6 (unknown line)
emit_ssaval_assign at /buildworker/worker/package_linux64/build/src/codegen.cpp:4021
emit_stmtpos at /buildworker/worker/package_linux64/build/src/codegen.cpp:4273 [inlined]
emit_function at /buildworker/worker/package_linux64/build/src/codegen.cpp:6843
jl_emit_code at /buildworker/worker/package_linux64/build/src/codegen.cpp:7205
jl_emit_codeinst at /buildworker/worker/package_linux64/build/src/codegen.cpp:7250
_jl_compile_codeinst at /buildworker/worker/package_linux64/build/src/jitlayers.cpp:124
jl_generate_fptr_for_unspecialized at /buildworker/worker/package_linux64/build/src/jitlayers.cpp:396
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:1976
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:2236 [inlined]
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2229 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
do_apply at /buildworker/worker/package_linux64/build/src/builtins.c:670
#s33#41 at /home/ssahm/.julia/packages/IsDef/unfsx/src/generic.jl:16 [inlined]
#s33#41 at ./none:0
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
GeneratedFunctionStub at ./boot.jl:571
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_call_staged at /buildworker/worker/package_linux64/build/src/method.c:395
jl_code_for_staged at /buildworker/worker/package_linux64/build/src/method.c:442
get_staged at ./compiler/utilities.jl:111
retrieve_code_info at ./compiler/utilities.jl:122 [inlined]
InferenceState at ./compiler/inferencestate.jl:131
typeinf_edge at ./compiler/typeinfer.jl:797
abstract_call_method at ./compiler/abstractinterpretation.jl:490
abstract_call_gf_by_type at ./compiler/abstractinterpretation.jl:143
abstract_call_known at ./compiler/abstractinterpretation.jl:1033
abstract_call at ./compiler/abstractinterpretation.jl:1056
abstract_call at ./compiler/abstractinterpretation.jl:1040
abstract_eval_statement at ./compiler/abstractinterpretation.jl:1167
typeinf_local at ./compiler/abstractinterpretation.jl:1462
typeinf_nocycle at ./compiler/abstractinterpretation.jl:1520
_typeinf at ./compiler/typeinfer.jl:214
typeinf at ./compiler/typeinfer.jl:209
typeinf_edge at ./compiler/typeinfer.jl:806
abstract_call_method at ./compiler/abstractinterpretation.jl:490
abstract_call_gf_by_type at ./compiler/abstractinterpretation.jl:143
abstract_call_known at ./compiler/abstractinterpretation.jl:1033
abstract_call at ./compiler/abstractinterpretation.jl:1056
abstract_call at ./compiler/abstractinterpretation.jl:1040
abstract_eval_statement at ./compiler/abstractinterpretation.jl:1167
typeinf_local at ./compiler/abstractinterpretation.jl:1462
typeinf_nocycle at ./compiler/abstractinterpretation.jl:1520
_typeinf at ./compiler/typeinfer.jl:214
typeinf at ./compiler/typeinfer.jl:209
typeinf_ext at ./compiler/typeinfer.jl:892
typeinf_ext_toplevel at ./compiler/typeinfer.jl:925
typeinf_ext_toplevel at ./compiler/typeinfer.jl:921
jfptr_typeinf_ext_toplevel_10816.clone_1 at /nix/store/kc6915w8f9f4lqx58qyry8q99h6z60x9-julia-bin-1.6.1/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_type_infer at /buildworker/worker/package_linux64/build/src/gf.c:298
jl_generate_fptr at /buildworker/worker/package_linux64/build/src/jitlayers.cpp:340
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:1970
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:2236 [inlined]
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2229 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
do_apply at /buildworker/worker/package_linux64/build/src/builtins.c:670
#s33#41 at /home/ssahm/.julia/packages/IsDef/unfsx/src/generic.jl:16 [inlined]
#s33#41 at ./none:0
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
GeneratedFunctionStub at ./boot.jl:571
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_call_staged at /buildworker/worker/package_linux64/build/src/method.c:395
jl_code_for_staged at /buildworker/worker/package_linux64/build/src/method.c:442
get_staged at ./compiler/utilities.jl:111
retrieve_code_info at ./compiler/utilities.jl:122 [inlined]
InferenceState at ./compiler/inferencestate.jl:131
typeinf_edge at ./compiler/typeinfer.jl:797
abstract_call_method at ./compiler/abstractinterpretation.jl:490
abstract_call_gf_by_type at ./compiler/abstractinterpretation.jl:143
abstract_call_known at ./compiler/abstractinterpretation.jl:1033
abstract_call at ./compiler/abstractinterpretation.jl:1056
abstract_call at ./compiler/abstractinterpretation.jl:1040
abstract_eval_statement at ./compiler/abstractinterpretation.jl:1167
typeinf_local at ./compiler/abstractinterpretation.jl:1462
typeinf_nocycle at ./compiler/abstractinterpretation.jl:1520
_typeinf at ./compiler/typeinfer.jl:214
typeinf at ./compiler/typeinfer.jl:209
typeinf_edge at ./compiler/typeinfer.jl:806
abstract_call_method at ./compiler/abstractinterpretation.jl:490
abstract_call_gf_by_type at ./compiler/abstractinterpretation.jl:143
abstract_call_known at ./compiler/abstractinterpretation.jl:1033
abstract_call at ./compiler/abstractinterpretation.jl:1056
abstract_call at ./compiler/abstractinterpretation.jl:1040
abstract_eval_statement at ./compiler/abstractinterpretation.jl:1167
typeinf_local at ./compiler/abstractinterpretation.jl:1462
typeinf_nocycle at ./compiler/abstractinterpretation.jl:1520
_typeinf at ./compiler/typeinfer.jl:214
typeinf at ./compiler/typeinfer.jl:209
typeinf_ext at ./compiler/typeinfer.jl:892
typeinf_ext_toplevel at ./compiler/typeinfer.jl:925
typeinf_ext_toplevel at ./compiler/typeinfer.jl:921
jfptr_typeinf_ext_toplevel_10816.clone_1 at /nix/store/kc6915w8f9f4lqx58qyry8q99h6z60x9-julia-bin-1.6.1/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_type_infer at /buildworker/worker/package_linux64/build/src/gf.c:298
jl_generate_fptr at /buildworker/worker/package_linux64/build/src/jitlayers.cpp:340
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:1970
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:2236 [inlined]
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2229 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
do_apply at /buildworker/worker/package_linux64/build/src/builtins.c:670
#s33#41 at /home/ssahm/.julia/packages/IsDef/unfsx/src/generic.jl:16 [inlined]
#s33#41 at ./none:0
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
GeneratedFunctionStub at ./boot.jl:571
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_call_staged at /buildworker/worker/package_linux64/build/src/method.c:395
jl_code_for_staged at /buildworker/worker/package_linux64/build/src/method.c:442
get_staged at ./compiler/utilities.jl:111
retrieve_code_info at ./compiler/utilities.jl:122 [inlined]
InferenceState at ./compiler/inferencestate.jl:131
typeinf_ext at ./compiler/typeinfer.jl:890
typeinf_ext_toplevel at ./compiler/typeinfer.jl:925
typeinf_ext_toplevel at ./compiler/typeinfer.jl:921
jfptr_typeinf_ext_toplevel_10816.clone_1 at /nix/store/kc6915w8f9f4lqx58qyry8q99h6z60x9-julia-bin-1.6.1/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_type_infer at /buildworker/worker/package_linux64/build/src/gf.c:298
jl_generate_fptr at /buildworker/worker/package_linux64/build/src/jitlayers.cpp:340
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:1970
jl_compile_method_internal at /buildworker/worker/package_linux64/build/src/gf.c:2236 [inlined]
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2229 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
#Out#39 at /home/ssahm/.julia/packages/IsDef/unfsx/src/IsDef.jl:106
Out at /home/ssahm/.julia/packages/IsDef/unfsx/src/IsDef.jl:101 [inlined]
#Out#38 at /home/ssahm/.julia/packages/IsDef/unfsx/src/IsDef.jl:98 [inlined]
Out at /home/ssahm/.julia/packages/IsDef/unfsx/src/IsDef.jl:98
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
do_call at /buildworker/worker/package_linux64/build/src/interpreter.c:115
eval_value at /buildworker/worker/package_linux64/build/src/interpreter.c:204
eval_stmt_value at /buildworker/worker/package_linux64/build/src/interpreter.c:155 [inlined]
eval_body at /buildworker/worker/package_linux64/build/src/interpreter.c:562
jl_interpret_toplevel_thunk at /buildworker/worker/package_linux64/build/src/interpreter.c:670
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:877
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:825
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:825
jl_toplevel_eval_in at /buildworker/worker/package_linux64/build/src/toplevel.c:929
eval at ./boot.jl:360 [inlined]
eval_user_input at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:139
repl_backend_loop at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:200
start_repl_backend at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:185
#run_repl#42 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:317
run_repl at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:305
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
#874 at ./client.jl:387
jfptr_YY.874_41532.clone_1 at /nix/store/kc6915w8f9f4lqx58qyry8q99h6z60x9-julia-bin-1.6.1/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
jl_f__call_latest at /buildworker/worker/package_linux64/build/src/builtins.c:714
#invokelatest#2 at ./essentials.jl:708 [inlined]
invokelatest at ./essentials.jl:706 [inlined]
run_main_repl at ./client.jl:372
exec_options at ./client.jl:302
_start at ./client.jl:485
jfptr__start_34289.clone_1 at /nix/store/kc6915w8f9f4lqx58qyry8q99h6z60x9-julia-bin-1.6.1/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2237 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2419
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1703 [inlined]
true_main at /buildworker/worker/package_linux64/build/src/jlapi.c:560
repl_entrypoint at /buildworker/worker/package_linux64/build/src/jlapi.c:702
main at julia (unknown line)
__libc_start_main at /usr/lib/libc.so.6 (unknown line)
unknown function (ip: 0x4007d8)
Allocations: 38651496 (Pool: 38639560; Big: 11936); GC: 51
[1]    28739 IOT instruction (core dumped)  julia

maybe someone can help debugging this and see which concrete SSA is crashing things.