JSPI-enabled emscripten_sleep() gets "invalid suspender object for suspend" error

[rentallect]

I am using emscripten 3.1.46. I build my wasm with -s ASYNCIFY=2 enabled. In the C code that is transformed into my wasm, I have a call to emscripten_sleep(5).

At runtime, when the emscripten_sleep function is invoked, it triggers a RuntimeError: invalid suspender object for suspend.

Can someone give me some clues regarding what I might be neglecting to do to make this emscripten_sleep operate as expected?

[brendandahl]

This is likely because the wasm export that eventually lead to the call of sleep did not have JSPI applied. Can you see on the call stack where wasm was entered from JS? That function should be ASYNCIFY_EXPORTS in your build command.