Illegal Instruction error

[00vareladavid]

While working on JuliaLang/Pkg.jl#857, I reproducibly hit this error on Windows CI. The same code runs fine on Linux/Mac.

I copy the relevant part of the trace:

Unreachable reached at 000000002B1F6BCD
Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
Exception: EXCEPTION_ILLEGAL_INSTRUCTION at 0x2b1f6bcd -- mktempdir at .\file.jl:576
in expression starting at C:\projects\pkg-jl\test\repl.jl:91
mktempdir at .\file.jl:582
mktempdir at .\file.jl:574 [inlined]
#21 at C:\projects\pkg-jl\test\repl.jl:91 [inlined]
cd at .\file.jl:85
#20 at C:\projects\pkg-jl\test\repl.jl:91 [inlined]
#3 at C:\projects\pkg-jl\test\utils.jl:23 [inlined]
mktempdir at .\file.jl:576
mktempdir at .\file.jl:574 [inlined]
#2 at C:\projects\pkg-jl\test\utils.jl:20 [inlined]
mktempdir at .\file.jl:576
mktempdir at .\file.jl:574 [inlined]
#1 at C:\projects\pkg-jl\test\utils.jl:19 [inlined]
withenv at .\env.jl:148
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1831
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184 [inlined]
jl_apply at /home/Administrator/buildbot/worker/package_win64/build/src\julia.h:1537 [inlined]
jl_invoke at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:56
temp_pkg_dir at C:\projects\pkg-jl\test\utils.jl:18
unknown function (ip: 000000002B1EF8D7)
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1831
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184
do_call at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:324
eval_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:430
eval_stmt_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:363 [inlined]
eval_body at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:678
jl_interpret_toplevel_thunk_callback at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:795
unknown function (ip: FFFFFFFFFFFFFFFE)
unknown function (ip: 0000000015FE00AF)
unknown function (ip: 0000000000000029)
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:813
jl_eval_module_expr at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:233
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:651
jl_parse_eval_all at /home/Administrator/buildbot/worker/package_win64/build/src\ast.c:838
jl_load at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:847 [inlined]
jl_load_ at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:854
include at .\boot.jl:317 [inlined]
include_relative at .\loading.jl:1041
include at .\sysimg.jl:29 [inlined]
include at C:\projects\pkg-jl\test\pkg.jl:3
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184
do_call at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:324
eval_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:430
eval_stmt_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:363 [inlined]
eval_body at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:678
jl_interpret_toplevel_thunk_callback at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:795
unknown function (ip: FFFFFFFFFFFFFFFE)
unknown function (ip: 00000000060740FF)
unknown function (ip: FFFFFFFFFFFFFFFF)
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:813
jl_eval_module_expr at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:233
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:651
jl_parse_eval_all at /home/Administrator/buildbot/worker/package_win64/build/src\ast.c:838
jl_load at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:847 [inlined]
jl_load_ at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:854
include at .\boot.jl:317 [inlined]
include_relative at .\loading.jl:1041
include at .\sysimg.jl:29 [inlined]
include at C:\projects\pkg-jl\test\runtests.jl:3
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1831
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184
do_call at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:324
eval_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:430
eval_stmt_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:363 [inlined]
eval_body at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:678
jl_interpret_toplevel_thunk_callback at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:795
unknown function (ip: FFFFFFFFFFFFFFFE)
unknown function (ip: 0000000002FFBF2F)
unknown function (ip: FFFFFFFFFFFFFFFF)
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:813
jl_eval_module_expr at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:233
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:651
jl_parse_eval_all at /home/Administrator/buildbot/worker/package_win64/build/src\ast.c:838
jl_load at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:847 [inlined]
jl_load_ at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:854
include at .\boot.jl:317 [inlined]
include_relative at .\loading.jl:1041
include at .\sysimg.jl:29
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184
include at .\client.jl:388
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1831
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184
do_call at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:324
eval_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:430
eval_stmt_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:363 [inlined]
eval_body at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:678
jl_interpret_toplevel_thunk_callback at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:795
unknown function (ip: FFFFFFFFFFFFFFFE)
unknown function (ip: 0000000002FF913F)
unknown function (ip: FFFFFFFFFFFFFFFF)
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:813
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:760
jl_toplevel_eval_in at /home/Administrator/buildbot/worker/package_win64/build/src\builtins.c:622
eval at .\boot.jl:319
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184
macro expansion at .\logging.jl:317 [inlined]
exec_options at .\client.jl:219
_start at .\client.jl:421
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2184
jl_apply at /home/Administrator/buildbot/worker/package_win64/build/src\julia.h:1537 [inlined]
true_main at /home/Administrator/buildbot/worker/package_win64/build/ui\repl.c:112
wmain at /home/Administrator/buildbot/worker/package_win64/build/ui\repl.c:233
__tmainCRTStartup at /usr/src/debug/mingw64-x86_64-runtime-5.0.3-1/crt\crtexe.c:329
mainCRTStartup at /usr/src/debug/mingw64-x86_64-runtime-5.0.3-1/crt\crtexe.c:212
BaseThreadInitThunk at C:\windows\system32\KERNEL32.DLL (unknown line)
RtlUserThreadStart at C:\windows\SYSTEM32\ntdll.dll (unknown line)
Allocations: 142474694 (Pool: 142456643; Big: 18051); GC: 295
ERROR: Package Pkg errored during testing
Stacktrace:
 [1] pkgerror(::String, ::Vararg{String,N} where N) at C:\projects\pkg-jl\src\Types.jl:121
 [2] macro expansion at .\logging.jl:313 [inlined]
 [3] #test#69(::Bool, ::Function, ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\projects\pkg-jl\src\Operations.jl:1315
 [4] #test at C:\projects\pkg-jl\src\API.jl:0 [inlined]
 [5] #test#42(::Bool, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\projects\pkg-jl\src\API.jl:272
 [6] #test at .\none:0 [inlined]
 [7] #test#41 at C:\projects\pkg-jl\src\API.jl:254 [inlined]
 [8] #test at .\none:0 [inlined]
 [9] #test#38 at C:\projects\pkg-jl\src\API.jl:251 [inlined]
 [10] (::getfield(Pkg.API, Symbol("#kw##test")))(::NamedTuple{(:coverage,),Tuple{Bool}}, ::typeof(Pkg.API.test)) at .\none:0
 [11] top-level scope at none:0

The full log is here.

[JeffBezanson]

To reproduce this you just run the Pkg tests on that PR on windows?

[00vareladavid]

Yes, that's right

[00vareladavid]

For context, the intention of that PR is to convert a bunch of Dict{String,Any} dictionaries to properly typed ones (e.g. Dict{String,UUID}).

Please let me know if there is anything I can do to help

[vtjnash]

this case should be prevented by #29158