tokio runtime could not be created

[Algorab]

I have a project where I use arm actix(tokio) musl mimalloc. When I run it on the raspberry I can see a error message in the title with running under valgrind.
I am not sure what cause the real problem.
A arm-musl-mimalloc-actix repo is available for reproduce the error and
everything is explained in more detail.

I start rust programming a view month ago, so my experience isn't very deep. Hope somebody can help me or point me to the right direction.

[sfackler]

The error message from valgrind says you should report the bug to them.

[Algorab]

It is also crashing when I don't use valgrind, see the core dump. So valgrind isn't the real cause.

[Darksonn]

It says that it failed with Os { code: 38, kind: Unsupported, message: "Function not implemented" }. Would you be able to a blank project that just creates a new Runtime, one test with enable_io and another test with enable_time?

[taiki-e]

messense/rust-musl-cross uses musl 1.2, but libc uses musl 1.1. EDIT: Nah, they use musl 1.1 for 32-bit targets, but in any case, -crt-static seems to work.
Try building with RUSTFLAGS='-C target-feature=-crt-static'.

(I have tested it locally using another cross-testing tool, it seems to work fine with -crt-static.)
related: sfackler/rust-openssl#1462

[Algorab]

@taiki-e I tried this flag. This produces a dynamic linked library with this flag, for some reason I want a static one. The raspberry pi 4 can also run in 64bit mode as aarch64. I compiled my program for this target and run the raspberry pi in 64bit and the start behaviour was the same. So I think 32bit cause not the problem.

@Darksonn I create a new repo which hopefully met what you wrote. And did also some tests, the results you can find in the Readme.

[Darksonn]

Since it fails only with mimalloc, it sounds like there is some operation that the runtime needs that is not supported when using mimalloc.

[Algorab]

@taiki-e You are right, rust-musl-cross uses the latest version of
musl-cross-make which is version 0.9.9. musl-cross-make 0.9.9 has the latest version of musl 1.1.24. I build a local image with musl 1.2.2 and run the tests on the raspberry. No crashes anymore.

@Darksonn @taiki-e Thanks for helping / pointing me to the right direction.