diff Python/thread_pthread.h @ 70450:8220f68f1229

Issue #9670: Increase the default stack size for secondary threads on Mac OS X and FreeBSD to reduce the chances of a crash instead of a "maximum recursion depth" RuntimeError exception. (patch by Ronald Oussoren)
author Ned Deily <nad@acm.org>
date Sat, 28 May 2011 00:45:52 -0700
parents c892b0321d23 8a484090da7e
children 024827a9db64
line wrap: on
line diff
--- a/Python/thread_pthread.h	Fri May 27 15:02:03 2011 -0500
+++ b/Python/thread_pthread.h	Sat May 28 00:45:52 2011 -0700
@@ -18,6 +18,18 @@
 #ifndef THREAD_STACK_SIZE
 #define THREAD_STACK_SIZE       0       /* use default stack size */
 #endif
+
+#if (defined(__APPLE__) || defined(__FreeBSD__)) && defined(THREAD_STACK_SIZE) && THREAD_STACK_SIZE == 0
+   /* The default stack size for new threads on OSX is small enough that
+    * we'll get hard crashes instead of 'maximum recursion depth exceeded'
+    * exceptions.
+    *
+    * The default stack size below is the minimal stack size where a
+    * simple recursive function doesn't cause a hard crash.
+    */
+#undef  THREAD_STACK_SIZE
+#define THREAD_STACK_SIZE       0x400000
+#endif
 /* for safety, ensure a viable minimum stacksize */
 #define THREAD_STACK_MIN        0x8000  /* 32kB */
 #else  /* !_POSIX_THREAD_ATTR_STACKSIZE */