Wenyong Huang

Hi, so you create two threads in init(), then you should only call init() one time in the host native? And could you remove `pthread_detach(tid);` and `pthread_detach(tid1);`? A little confused...

OK, seems it isn't caused by pthread_detach, but it may be better to put the first `pthread_detach` after `NativeApp_Sleep(10)` and put the second `pthread_detach` after `NativeApi_sleep(100)`.

Not sure whether it is caused by wasi-sdk (its libc bytecode of malloc function), or is caused by wamr, could you try compile the wasm app with [wasi-sdk-20+threads](https://github.com/WebAssembly/wasi-sdk/releases/tag/wasi-sdk-20%2Bthreads)? Another way...

Hi, is it caused by wasm_runtime_module_malloc returning 0? Do yo pass `--heap-size=n` to iwasm, or if you are not using iwasm, could you pass host_managed_heap_size with a value larger than...

What `onDataRecv` does? Will `wasm_runtime_call_wasm(exec_env, onDataRecv, 2, argv)` send data to other thread, and other thread accesses it after this thread frees the data (`module_free(wasm_module_inst, wasmBuffer)`)? BTW, do you test...

Seems that `__wasm_call_ctors` isn't exported and executed to initialize the c++ class/struct related globals. Could you add `-Wl,--export=__wasm_call_ctors`, and then call it before calling the `init()` function, somewhat like: ```C...

I am not sure whether there is still issue in the latest wasi-sdk, but maybe you can try building wasi-libc by yourself: ``` git clone https://github.com/WebAssembly/wasi-libc cd wasi-libc make -j...

Could you please try removing `-DWAMR_BUILD_LIB_WASI_THREADS=1` (or set it to 0) and rebuild wamr first? And enlarge `-zstack-size=10485760` in target_link_options and call `wasm_runtime_set_max_thread_num(n)` with a larger `n` if needed.

Welcome, it is great that it works! Yes, you use WAMR lib-pthread but not wasi-threads, since the wasm app imports `pthread_create` and other pthread_xxx APIs, but not import `thread-spawn`. Refer...

It is because that these import functions are not linked, if you want, you can implement the related native API wrappers and register them to runtime with wasm_runtime_register_natives. But it...