fix Bug #14103 IM tests fail on SCO

server-tools/instance-manager/listener.cc:
  every new connection should have sufficient thread stack to
  handle all IM commands
server-tools/instance-manager/manager.cc:
  change stack size of listener and guardian threads
server-tools/instance-manager/priv.cc:
  Add a new function, which is a wrapper around pthread_create to increase the stack size
server-tools/instance-manager/priv.h:
  declare new function

server-tools/instance-manager/listener.cc

@@ -362,12 +362,13 @@ void Listener_thread::handle_new_mysql_connection(Vio *vio)
     pthread_attr_t mysql_thd_attr;
     pthread_attr_init(&mysql_thd_attr);
     pthread_attr_setdetachstate(&mysql_thd_attr, PTHREAD_CREATE_DETACHED);
-    if (pthread_create(&mysql_thd_id, &mysql_thd_attr, mysql_connection,
-                       mysql_thread_args))
+    if (set_stacksize_n_create_thread(&mysql_thd_id, &mysql_thd_attr,
+                                      mysql_connection, mysql_thread_args))
     {
       delete mysql_thread_args;
       vio_delete(vio);
-      log_error("handle_one_mysql_connection(): pthread_create(mysql) failed");
+      log_error("handle_one_mysql_connection():"
+                "set_stacksize_n_create_thread(mysql) failed");
     }
     pthread_attr_destroy(&mysql_thd_attr);
   }

server-tools/instance-manager/manager.cc

@@ -162,12 +162,12 @@ void manager(const Options &options)
 
     pthread_attr_init(&listener_thd_attr);
     pthread_attr_setdetachstate(&listener_thd_attr, PTHREAD_CREATE_DETACHED);
-    rc= pthread_create(&listener_thd_id, &listener_thd_attr, listener,
-                       &listener_args);
+    rc= set_stacksize_n_create_thread(&listener_thd_id, &listener_thd_attr,
+                                      listener, &listener_args);
     pthread_attr_destroy(&listener_thd_attr);
     if (rc)
     {
-      log_error("manager(): pthread_create(listener) failed");
+      log_error("manager(): set_stacksize_n_create_thread(listener) failed");
       goto err;
     }
 
@@ -187,12 +187,12 @@ void manager(const Options &options)
 
     pthread_attr_init(&guardian_thd_attr);
     pthread_attr_setdetachstate(&guardian_thd_attr, PTHREAD_CREATE_DETACHED);
-    rc= pthread_create(&guardian_thd_id, &guardian_thd_attr, guardian,
-                       &guardian_thread);
+    rc= set_stacksize_n_create_thread(&guardian_thd_id, &guardian_thd_attr,
+                                      guardian, &guardian_thread);
     pthread_attr_destroy(&guardian_thd_attr);
     if (rc)
     {
-      log_error("manager(): pthread_create(guardian) failed");
+      log_error("manager(): set_stacksize_n_create_thread(guardian) failed");
       goto err;
     }
 

server-tools/instance-manager/priv.cc

@@ -18,6 +18,17 @@
 #include "priv.h"
 #include "portability.h"
 
+#if defined(__ia64__) || defined(__ia64)
+/*
+  We can live with 32K, but reserve 64K. Just to be safe.
+  On ia64 we need to reserve double of the size.
+*/
+#define IM_THREAD_STACK_SIZE    (128*1024L)
+#else
+#define IM_THREAD_STACK_SIZE    (64*1024)
+#endif
+
+
 /* the pid of the manager process (of the signal thread on the LinuxThreads) */
 pid_t manager_pid;
 
@@ -52,3 +63,27 @@ unsigned int test_flags= 0;
 unsigned long bytes_sent = 0L, bytes_received = 0L;
 unsigned long mysqld_net_retry_count = 10L;
 unsigned long open_files_limit;
+
+/*
+  Change the stack size and start a thread. Return an error if either
+  pthread_attr_setstacksize or pthread_create fails.
+  Arguments are the same as for pthread_create().
+*/
+
+int set_stacksize_n_create_thread(pthread_t  *thread, pthread_attr_t *attr,
+                                  void *(*start_routine)(void *), void *arg)
+{
+  int rc;
+
+  /*
+    Set stack size to be safe on the platforms with too small
+    default thread stack.
+  */
+  rc= pthread_attr_setstacksize(attr,
+                                (size_t) (PTHREAD_STACK_MIN +
+                                          IM_THREAD_STACK_SIZE));
+
+  if (!rc)
+    rc= pthread_create(thread, attr, start_routine, arg);
+  return rc;
+}

server-tools/instance-manager/priv.h

@@ -80,4 +80,8 @@ extern unsigned long bytes_sent, bytes_received;
 extern unsigned long mysqld_net_retry_count;
 extern unsigned long open_files_limit;
 
+
+int set_stacksize_n_create_thread(pthread_t  *thread, pthread_attr_t *attr,
+                                  void *(*start_routine)(void *), void *arg);
+
 #endif // INCLUDES_MYSQL_INSTANCE_MANAGER_PRIV_H