Android mult-thread pthread_exit crash

[JakeOrange]

I am debugging the casehello_world.wasm.zip on Android. I instantiated the wasm module. I called the function _start. It will create 10 threads. After wasm_func_call executed successfully,pthread_exit crashed.

[lum1n0us]

what is the value of maximum number of threads?

[JakeOrange]

12

[JakeOrange]

I run it ok on MacOS and iOS.

[lum1n0us]

In that case, I would suggest setting max_thread_num of RuntimeInitArgs to a larger number, like 12 or 15, then using wasm_runtime_full_init() to start everything.

[JakeOrange]

In that case, I would suggest setting max_thread_num of RuntimeInitArgs to a larger number, like 12 or 15, then using wasm_runtime_full_init() to start everything.

I had set CLUSTER_MAX_THREAD_NUM to 12. And MacOS and iOS is rightly. Are there other points?

[lum1n0us]

iwasm works well with the hello_world.wasm on my local environment. Could u try it, with iwasm, on MacOS?

$ ./iwasm --max-threads=20 ./hello_world.wasm
 in thread 4
 in thread 7
 in thread 6
 in thread 2
 in thread 3
 in thread 9
 in thread 5
 in thread 0
 in thread 8
 in thread 1

[JakeOrange]

iwasm works well with the hello_world.wasm on my local environment. Could u try it, with iwasm, on MacOS?

$ ./iwasm --max-threads=20 ./hello_world.wasm
 in thread 4
 in thread 7
 in thread 6
 in thread 2
 in thread 3
 in thread 9
 in thread 5
 in thread 0
 in thread 8
 in thread 1

I had set CLUSTER_MAX_THREAD_NUM to 12. And MacOS and iOS is rightly. Are there other points?

I had try it on MacOS, it is OK. It only happen on Android. And it must happen.

[lum1n0us]

I had try it on MacOS, it is OK. It only happen on Android. And it must happen.

When reproduce it on Android, using iwasm or your local, self compiled, wamr library?

[JakeOrange]

I had try it on MacOS, it is OK. It only happen on Android. And it must happen.

When reproduce it on Android, using iwasm or your local, self compiled, wamr library?

Compile locally to .so with cmake

[lum1n0us]

Since I can't reproduce it locally, here are some BKMs of the team, hope useful:

• Don't mix using WAMR_BUILD_LIB_PTHREAD and WAMR_BUILD_LIB_PTHREAD together
• With the help of valgrind and sanitizers(WAMR_BUILD_SANITIZER)
• Shrink the problem by break something. For example:
  • try variant thread numbers
  • try variant compilation options, like BOUND_CHECK
  • comment wasm_deinstantiate()
  • comment wasm_unload()
  • ...

[JakeOrange]

Since I can't reproduce it locally, here are some BKMs of the team, hope useful:

Get it. Thanks!