Acquire GIL after StackOverflowError

Author: otethal

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/statement/ExceptionHandlingStatementNode.java

@@ -209,6 +209,7 @@ protected final PException wrapJavaExceptionIfApplicable(Throwable e) {
             return wrapJavaException(e, this, factory().createBaseException(SystemError, "%m", new Object[]{e}));
         }
         if (e instanceof StackOverflowError) {
+            getContext().recoverFromSoe(e);
             return wrapJavaException(e, this, factory().createBaseException(RecursionError, "maximum recursion depth exceeded", new Object[]{}));
         }
         return null;

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PythonContext.java

@@ -1235,6 +1235,21 @@ public PythonNativeWrapper getSingletonNativeWrapper(PythonAbstractObject obj) {
         return null;
     }
 
+    public void recoverFromSoe(Throwable e) {
+        if (!ownsGil()) {
+            System.out.println("SOE thrown and we don't have GIL");
+            e.printStackTrace(System.out);
+            while (true) {
+                try {
+                    acquireGil();
+                    return;
+                } catch (InterruptedException ee) {
+                    System.out.println("INTERRUPTED");
+                }
+            }
+        }
+    }
+
     /**
      * Should not be called directly.
      *