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diff Python/thread_pthread.h @ 69219:378b40d71175 3.1

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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, 09 Apr 2011 12:32:12 -0700
parents f197407bdba2
children 42d5001e5845 3fe8fd2fd1d0
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--- a/Python/thread_pthread.h	Sat Apr 09 19:30:03 2011 +0200
+++ b/Python/thread_pthread.h	Sat Apr 09 12:32:12 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       0x100000
+#endif
 /* for safety, ensure a viable minimum stacksize */
 #define THREAD_STACK_MIN        0x8000  /* 32kB */
 #else  /* !_POSIX_THREAD_ATTR_STACKSIZE */