Recreate segmentation fault when loading dynamic objects on Linux

The purpose of this repo is to show two things

1. Differences in behavior between MacOS and Linux

• On MacOS the init/fini are called each time the thread load/unloads the module
• On Linux init is called at least once on start and at least once on test ext but also sporatically during test execution

2. Segmentation fault when running on Linux

• Note: segmentation fault does not occur 100% of the time

Building and running

This project contains a dynamic module built as a member of the workspace. This module is not built by cargo run so you must always issue cargo build first.

cargo build
cargo run

Sample output

Linux:

cargo run
    Finished dev [unoptimized + debuginfo] target(s) in 0.01s                                                                                                
     Running `target/debug/dynamic_module_segfault`
spawn 100 threads for 10000 iteractions
.init
.fini
.init
Segmentation fault (core dumped)