Add "pcid fault" test, capable of oxidizing relibc.

src/main.rs

@@ -644,6 +644,20 @@ fn futex_test() -> Result<(), String> {
     // other if they would happen to use the same virtual address, but in different address spaces.
     Ok(())
 }
+fn aqua_regia() -> Result<(), String> {
+    let (sender, receiver) = std::sync::mpsc::sync_channel(8192);
+
+    let thread = std::thread::spawn(move || {
+        receiver.into_iter().for_each(drop);
+    });
+
+    for i in 0..10000 {
+        sender.send(Box::new(42));
+    }
+    thread.join().unwrap();
+
+    Ok(())
+}
 
 fn main() {
     use std::collections::BTreeMap;
@@ -659,6 +673,7 @@ fn main() {
     tests.insert("thread", thread_test);
     tests.insert("tls", tls_test);
     tests.insert("futex", futex_test);
+    tests.insert("aqua_regia", aqua_regia);
 
     let mut ran_test = false;
     for arg in env::args().skip(1) {