Use pthread_attr_setstacksize in JackPosixThread class.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@1394 0c269be4-1314-0410-8aa9-9f06e86f4224

common/JackPosixThread.cpp

@@ -116,6 +116,11 @@ int JackPosixThread::StartImp(pthread_t* thread, int priority, int realtime, voi
             jack_error("Cannot set scheduling priority for RT thread %d %s", res, strerror(errno));
             return -1;
         }
+		
+	   if ((res = pthread_attr_setstacksize(&attributes, THREAD_STACK))) {
+			jack_error("setting thread stack size%d %s", res, strerror(errno));
+			return -1;
+        }
 
         if ((res = pthread_create(thread, &attributes, start_routine, arg))) {
             jack_error("Cannot set create thread %d %s", res, strerror(errno));

common/JackPosixThread.h

@@ -27,6 +27,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 namespace Jack
 {
 
+/* use 512KB stack per thread - the default is way too high to be feasible 
+ * with mlockall() on many systems */
+#define THREAD_STACK 524288
+
 /*!
 \brief The POSIX thread base class.
 */