Windows 10 WSL: stuck on "using Maxima"

[bernwo]

Hi, I am moving all of my developments from windows to Linux because Linux is just more convenient. I am using WSL. Version information can be found below.

I installed maxima first before running using Maxima.jl
sudo apt install maxima

I checked that the bash accepts maxima and I was able to enter maxima terminal from bash.
I also tried julia> run(`maxima`) and I was able to enter the maxima terminal as well.

I then installed Maxima.jl with Pkg.add("Maxima") and ran using Maxima in the julia terminal, and this is the output:
julia> using Maxima
[ Info: Precompiling Maxima [e6386f5f-9a8a-5a5d-a605-d2d61207ca5a]
WARNING: could not import Base.expand into Maxima

The julia terminal was stuck here for hours and the windows task manager shows 0% cpu usage for the julia process. I ended up interrupting it by doing CTRL+C because it clearly wasn't going anywhere. If I try to run using Maxima again, the julia terminal gets stuck indefinitely again.

This is the output when I interrupt it:
Stacktrace:
[1] process_events at ./libuv.jl:98 [inlined]
[2] wait() at ./event.jl:246
[3] wait(::Condition) at ./event.jl:46
[4] wait_readbyte(::Base.PipeEndpoint, ::UInt8) at ./stream.jl:345
[5] #readuntil#491 at ./stream.jl:836 [inlined]
[6] #readuntil at ./none:0 [inlined]
[7] readuntil_string at ./io.jl:632 [inlined]
[8] #readuntil#289(::Bool, ::Function, ::Base.PipeEndpoint, ::Char) at ./io.jl:636
[9] #readuntil#267 at ./io.jl:635 [inlined]
[10] readuntil at ./io.jl:233 [inlined]
[11] read(::Maxima.MaximaSession) at /home/bern/.julia/packages/Maxima/p6qVJ/src/server.jl:49 [12] mcall(::Maxima.MExpr) at /home/bern/.julia/packages/Maxima/p6qVJ/src/mexpr.jl:261
[13] mcall(::String) at /home/bern/.julia/packages/Maxima/p6qVJ/src/mexpr.jl:298
[14] #Load#24(::Cmd, ::Function) at /home/bern/.julia/packages/Maxima/p6qVJ/src/setup.jl:32
[15] Load() at /home/bern/.julia/packages/Maxima/p6qVJ/src/setup.jl:9
[16] __init__() at /home/bern/.julia/packages/Maxima/p6qVJ/src/setup.jl:6
[17] _include_from_serialized(::String, ::Array{Any,1}) at ./loading.jl:633
[18] _require_search_from_serialized(::Base.PkgId, ::String) at ./loading.jl:713
[19] _require(::Base.PkgId) at ./loading.jl:937
[20] require(::Base.PkgId) at ./loading.jl:858
[21] require(::Module, ::Symbol) at ./loading.jl:853
[22] eval(::Module, ::Any) at ./boot.jl:328
[23] eval_user_input(::Any, ::REPL.REPLBackend) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:85
[24] macro expansion at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:117 [inlined]
[25] (::getfield(REPL, Symbol("##26#27")){REPL.REPLBackend})() at ./task.jl:259

I am not sure what I am doing wrong, is there a fix for this?

Where I got my julia from:
https://julialang-s3.julialang.org/bin/linux/x64/1.1/julia-1.1.1-linux-x86_64.tar.gz

Version Info:

• julia 1.1.1
• WSL Ubuntu 18.04.2 LTS
• Maxima.jl 0.1.0
• maxima 5.41.0
• Windows 10 Pro build 18362.267

[nsmith5]

Hey! Sorry for the slow reply. I know I had this working on WSL at one point. Unfortunately, I don't have access to a Windows box at the moment so I won't be able to push this much further without some help.

A peak behind the curtain might help us figure this out together:

• Maxima.jl switches based on the operating system type. What does julia give you for Sys.iswindows() in WSL?
• The hang is related opening a pipe and probably hearing nothing back from Maxima. I should probably add a timeout for this type of scenerio. The strange thing is that it doesn't fail when launching maxima in the background...

Have you tried the new WSL 2? Might be better?