Increase the default stacksizes:

		32-bit		64-bit
main thread	  2MB		  4MB
other threads	  1MB		  2MB

4 files changed, 22 insertions, 9 deletions

diff --git a/lib/libpthread/thread/thr_attr_init.c b/lib/libpthread/thread/thr_attr_init.c
index 9c73463..604a1aa 100644
--- a/lib/libpthread/thread/thr_attr_init.c
+++ b/lib/libpthread/thread/thr_attr_init.c
@@ -54,6 +54,7 @@ _pthread_attr_init(pthread_attr_t *attr)
 		memcpy(pattr, &_pthread_attr_default,
 		    sizeof(struct pthread_attr));
 		pattr->guardsize_attr = _thr_guard_default;
+		pattr->stacksize_attr = _thr_stack_default;
 
 		/* Return a pointer to the attribute object: */
 		*attr = pattr;
diff --git a/lib/libpthread/thread/thr_init.c b/lib/libpthread/thread/thr_init.c
index 6d41087..3272365 100644
--- a/lib/libpthread/thread/thr_init.c
+++ b/lib/libpthread/thread/thr_init.c
@@ -337,7 +337,7 @@ init_main_thread(struct pthread *thread)
 	 * resource limits, so this stack needs an explicitly mapped
 	 * red zone to protect the thread stack that is just beyond.
 	 */
-	if (mmap((void *)_usrstack - THR_STACK_INITIAL -
+	if (mmap((void *)_usrstack - _thr_stack_initial -
 	    _thr_guard_default, _thr_guard_default, 0, MAP_ANON,
 	    -1, 0) == MAP_FAILED)
 		PANIC("Cannot allocate red zone for initial thread");
@@ -351,8 +351,8 @@ init_main_thread(struct pthread *thread)
 	 *       actually free() it; it just puts it in the free
 	 *       stack queue for later reuse.
 	 */
-	thread->attr.stackaddr_attr = (void *)_usrstack - THR_STACK_INITIAL;
-	thread->attr.stacksize_attr = THR_STACK_INITIAL;
+	thread->attr.stackaddr_attr = (void *)_usrstack - _thr_stack_initial;
+	thread->attr.stacksize_attr = _thr_stack_initial;
 	thread->attr.guardsize_attr = _thr_guard_default;
 	thread->attr.flags |= THR_STACK_USER;
 
@@ -427,6 +427,14 @@ init_private(void)
 
 		_thr_page_size = getpagesize();
 		_thr_guard_default = _thr_page_size;
+		if (sizeof(void *) == 8) {
+			_thr_stack_default = THR_STACK64_DEFAULT;
+			_thr_stack_initial = THR_STACK64_INITIAL;
+		}
+		else {
+			_thr_stack_default = THR_STACK32_DEFAULT;
+			_thr_stack_initial = THR_STACK32_INITIAL;
+		}
 		init_once = 1;	/* Don't do this again. */
 	} else {
 		/*
diff --git a/lib/libpthread/thread/thr_private.h b/lib/libpthread/thread/thr_private.h
index 9f9f505..c629038 100644
--- a/lib/libpthread/thread/thr_private.h
+++ b/lib/libpthread/thread/thr_private.h
@@ -466,14 +466,16 @@ struct pthread_attr {
 /*
  * Miscellaneous definitions.
  */
-#define THR_STACK_DEFAULT			65536
+#define THR_STACK32_DEFAULT			(1 * 1024 * 1024)
+#define THR_STACK64_DEFAULT			(2 * 1024 * 1024)
 
 /*
  * Maximum size of initial thread's stack.  This perhaps deserves to be larger
  * than the stacks of other threads, since many applications are likely to run
  * almost entirely on this stack.
  */
-#define THR_STACK_INITIAL			0x100000
+#define THR_STACK32_INITIAL			(2 * 1024 * 1024)
+#define THR_STACK64_INITIAL			(4 * 1024 * 1024)
 
 /*
  * Define the different priority ranges.  All applications have thread
@@ -1034,7 +1036,7 @@ SCLASS struct pthread_attr _pthread_attr_default
     SCLASS_PRESET({
 	SCHED_RR, 0, TIMESLICE_USEC, THR_DEFAULT_PRIORITY,
 	THR_CREATE_RUNNING,	PTHREAD_CREATE_JOINABLE, NULL,
-	NULL, NULL, THR_STACK_DEFAULT, /* guardsize */0
+	NULL, NULL, /* stacksize */0, /* guardsize */0
     });
 
 /* Default mutex attributes: */
@@ -1073,6 +1075,8 @@ SCLASS struct lock	_rwlock_static_lock;
 SCLASS struct lock	_keytable_lock;
 SCLASS struct lock	_thread_list_lock;
 SCLASS int		_thr_guard_default;
+SCLASS int		_thr_stack_default;
+SCLASS int		_thr_stack_initial;
 SCLASS int		_thr_page_size;
 SCLASS pthread_t	_thr_sig_daemon;
 SCLASS int		_thr_debug_flags	SCLASS_PRESET(0);
diff --git a/lib/libpthread/thread/thr_stack.c b/lib/libpthread/thread/thr_stack.c
index 484eb81..f634055 100644
--- a/lib/libpthread/thread/thr_stack.c
+++ b/lib/libpthread/thread/thr_stack.c
@@ -160,7 +160,7 @@ _thr_stack_alloc(struct pthread_attr *attr)
 	 * If the stack and guard sizes are default, try to allocate a stack
 	 * from the default-size stack cache:
 	 */
-	if ((stacksize == THR_STACK_DEFAULT) &&
+	if ((stacksize == _thr_stack_default) &&
 	    (guardsize == _thr_guard_default)) {
 		if ((spare_stack = LIST_FIRST(&dstackq)) != NULL) {
 			/* Use the spare stack. */
@@ -191,7 +191,7 @@ _thr_stack_alloc(struct pthread_attr *attr)
 	else {
 		/* Allocate a stack from usrstack. */
 		if (last_stack == NULL)
-			last_stack = _usrstack - THR_STACK_INITIAL -
+			last_stack = _usrstack - _thr_stack_initial -
 			    _thr_guard_default;
 
 		/* Allocate a new stack. */
@@ -245,7 +245,7 @@ _thr_stack_free(struct pthread_attr *attr)
 		spare_stack->guardsize = round_up(attr->guardsize_attr);
 		spare_stack->stackaddr = attr->stackaddr_attr;
 
-		if (spare_stack->stacksize == THR_STACK_DEFAULT &&
+		if (spare_stack->stacksize == _thr_stack_default &&
 		    spare_stack->guardsize == _thr_guard_default) {
 			/* Default stack/guard size. */
 			LIST_INSERT_HEAD(&dstackq, spare_stack, qe);