rt: Allow 2x normal stack during unwinding. Closes #2173

Allows room for destructors to run without allowing the stack to grow forever.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/test/run-fail/too-much-recursion-unwinding.rs b/src/test/run-fail/too-much-recursion-unwinding.rs
new file mode 100644
index 00000000000..e56361e2f72
--- /dev/null
+++ b/src/test/run-fail/too-much-recursion-unwinding.rs
@@ -0,0 +1,23 @@
+// error-pattern:ran out of stack
+// xfail-test - right now we leak when we fail during failure
+
+// Test that the task fails after hiting the recursion limit
+// durnig unwinding
+
+fn recurse() {
+    log(debug, "don't optimize me out");
+    recurse();
+}
+
+resource r(recursed: *mut bool) unsafe {
+    if !*recursed {
+        *recursed = true;
+        recurse();
+    }
+}
+
+fn main() {
+    let mut recursed = false;
+    let _r = r(ptr::mut_addr_of(recursed));
+    recurse();
+}
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