runtests failed on Mac MacBook M1

[brandsblair2020]

I ran the "test InterProcessCommunication" on my Mac MacBook M1 installation with Julia 1.7.1, and it has error:

Shared Memory (BSD) : Error During Test at ~/.julia/packages/InterProcessCommunication/rpDdn/test/runtests.jl:369
Got exception outside of a @test
SystemError: shmctl: Invalid argument
Stacktrace:
[1] systemerror(p::String, errno::Int32; extrainfo::Nothing)
@ Base ./error.jl:174
[2] #systemerror#68
@ ./error.jl:173 [inlined]
[3] systemerror
@ ./error.jl:173 [inlined]
[4] shmctl
@ ~/.julia/packages/InterProcessCommunication/rpDdn/src/shm.jl:469 [inlined]
[5] sizeof
@ ~/.julia/packages/InterProcessCommunication/rpDdn/src/shm.jl:336 [inlined]
[6] InterProcessCommunication.SharedMemory(id::InterProcessCommunication.ShmId; readonly::Bool)
@ InterProcessCommunication ~/.julia/packages/InterProcessCommunication/rpDdn/src/shm.jl:98
[7] macro expansion
@ ~/.julia/packages/InterProcessCommunication/rpDdn/test/runtests.jl:381 [inlined]
[8] macro expansion
@ /Applications/Julia-1.7.app/Contents/Resources/julia/share/julia/stdlib/v1.7/Test/src/Test.jl:1283 [inlined]
[9] top-level scope
@ ~/.julia/packages/InterProcessCommunication/rpDdn/test/runtests.jl:370
[10] include(fname::String)
@ Base.MainInclude ./client.jl:451
[11] top-level scope
@ none:6
[12] eval
@ ./boot.jl:373 [inlined]
[13] exec_options(opts::Base.JLOptions)
@ Base ./client.jl:268
[14] _start()
@ Base ./client.jl:495
Test Summary: | Pass Error Total
Shared Memory (BSD) | 5 1 6

[emmt]

Sorry for such a late answer.

Shared memory is not well supported in MacOS. You may also see #7. I do not have access so it is difficult for me to fix that (provided it is possible). Any volunteers?