prerelease: 0.92: fix uninitialized usrdata->cpu_topology_list

Change-Id: Ia12970bda1225898823a67c2d0461144fc62ebb9

CMakeLists.txt

@@ -10,7 +10,7 @@ project(mckernel C ASM)
 set(MCKERNEL_VERSION "1.7.1")
 
 # See "Fedora Packaging Guidelines -- Versioning"
-set(MCKERNEL_RELEASE "0.7")
+set(MCKERNEL_RELEASE "0.92")
 
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
 # for rpmbuild

docs/users.rst

@@ -34,6 +34,19 @@ For example, with Fujitsu Technical Computing Suite (TCS), you need to specify `
 
    #PJM -L jobenv=mck1
 
+(Optional, Fujitsu TCS only) Specify boot parameters
+----------------------------------------------------
+
+You can specify the boot parameters by defining environmental variables and pass them to Fujitsu TCS.
+The parameters include the resource reservation settings, resource reservation amount, kernel arguments and routing of message channels between McKernel CPUs and Linux CPUs.
+See `IHK Specifications - ihk_create_os_str() <spec/ihk.html>`__ for the parameter names and allowed values.
+The example of setting the memory amount is shown below.
+
+.. code-block:: none
+
+   export IHK_MEM="7G@4,7G@5,7G@6,7G@7"
+   pjsub -X run.sh
+
 Insert ``mcexec`` into the command line
 ---------------------------------------
 

executer/kernel/mcctrl/ikc.c

@@ -536,9 +536,6 @@ int prepare_ikc_channels(ihk_os_t os)
 	usrdata->os = os;
 	ihk_host_os_set_usrdata(os, usrdata);
 
-	ihk_ikc_listen_port(os, &lp_ikc2linux);
-	ihk_ikc_listen_port(os, &lp_ikc2mckernel);
-
 	init_waitqueue_head(&usrdata->wq_procfs);
 	mutex_init(&usrdata->reserve_lock);
 	mutex_init(&usrdata->part_exec_lock);
@@ -555,6 +552,16 @@ int prepare_ikc_channels(ihk_os_t os)
 	INIT_LIST_HEAD(&usrdata->wakeup_descs_list);
 	spin_lock_init(&usrdata->wakeup_descs_lock);
 
+	/* ihk_ikc_listen_port should be performed after
+	 * usrdata->cpu_topology_list is initialized because the
+	 * function enables syscall_packet_handler which accesses
+	 * the list (the call path is sysfsm_packet_handler -->
+	 * sysfsm_work_main --> sysfsm_setup --> setup_sysfs_files
+	 * --> setup_cpus_sysfs_files).
+	 */
+	ihk_ikc_listen_port(os, &lp_ikc2linux);
+	ihk_ikc_listen_port(os, &lp_ikc2mckernel);
+
 	return 0;
 
 error: