bpo-18049: Define THREAD_STACK_SIZE for AIX to pass default recursion limit test (GH-15081)

miss-islington · aixtools · web-flow · commit f92bb6ed336c · 2019-08-28T22:35:41.000-07:00
* Define THREAD_STACK_SIZE for AIX to pass default recursion limit test (cherry picked from commit 9670ce7) Co-authored-by: Michael Felt <aixtools@users.noreply.github.com>
diff --git a/Misc/NEWS.d/next/Library/2019-08-02-16-44-42.bpo-18049.OA4qBL.rst b/Misc/NEWS.d/next/Library/2019-08-02-16-44-42.bpo-18049.OA4qBL.rst
@@ -0,0 +1,3 @@
+Add definition of THREAD_STACK_SIZE for AIX in Python/thread_pthread.h
+The default thread stacksize caused crashes with the default recursion limit
+Patch by M Felt
diff --git a/Python/thread_pthread.h b/Python/thread_pthread.h
@@ -47,6 +47,10 @@
 #undef  THREAD_STACK_SIZE
 #define THREAD_STACK_SIZE       0x400000
 #endif
+#if defined(_AIX) && defined(THREAD_STACK_SIZE) && THREAD_STACK_SIZE == 0
+#undef  THREAD_STACK_SIZE
+#define THREAD_STACK_SIZE       0x200000
+#endif
 /* for safety, ensure a viable minimum stacksize */
 #define THREAD_STACK_MIN        0x8000  /* 32 KiB */
 #else  /* !_POSIX_THREAD_ATTR_STACKSIZE */

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+Add definition of THREAD_STACK_SIZE for AIX in Python/thread_pthread.h`
	`2`	`+The default thread stacksize caused crashes with the default recursion limit`
	`3`	`+Patch by M Felt`