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JuliaInterop / JavaCall.jl

Call Java from Julia
http://juliainterop.github.io/JavaCall.jl
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Crashing after initialize call with JNA if System.gc is called #123

Closed cnuernber closed 4 years ago

cnuernber commented 4 years ago

Hey, I am playing with JNA bindings and consistently getting a crash on 1.4.2 if jl_init__threading is called at all and then followed with 1 or 2 System.gc() calls.

The crash I am seeing is:

fatal: error thrown and no exception handler available.
ReadOnlyMemoryError()

We are setting up the system with the appropriate julia variables set: https://github.com/cnuernber/julia-clj/blob/master/dockerfiles/Dockerfile#L32

Again, this is simply calling jl_init__threading and then (System.gc) a few times.

mkitti commented 4 years ago

Hi @cnuernber , JavaCall.jl may not be the best place for this issue. It sounds like you are trying to embed Julia into Java using JNA.

The issue is probably better posted on the Julia github itself: https://github.com/JuliaLang/julia

It does seem like this might require more interactive online debugging, so I also recommend the Julia Slack or Julia Zulip: https://slackinvite.julialang.org/ https://julialang.zulipchat.com/#

You may also have an interest in https://github.com/rssdev10/julia4j

cnuernber commented 4 years ago

Thanks, that is great info :-).