spec: prerelease 0.6 for testing capped best-effort memory reservation

Change-Id: Iaa91b311ee6879e84ce862aeabb4bd1fcd95d35f

CMakeLists.txt

@@ -10,7 +10,7 @@ project(mckernel C ASM)
 set(MCKERNEL_VERSION "1.7.1")
 
 # See "Fedora Packaging Guidelines -- Versioning"
-set(MCKERNEL_RELEASE "0.4")
+set(MCKERNEL_RELEASE "0.6")
 
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
 # for rpmbuild
@@ -64,14 +64,13 @@ if(ENABLE_TOFU)
 	set(KBUILD_C_FLAGS "${KBUILD_C_FLAGS} -DENABLE_TOFU")
 endif()
 
+# when compiling on a compute-node
 execute_process(COMMAND bash -c "grep $(hostname) /etc/opt/FJSVfefs/config/fefs_node1.csv 2>/dev/null | cut -d, -f2"
   OUTPUT_VARIABLE FUGAKU_NODE_TYPE OUTPUT_STRIP_TRAILING_WHITESPACE)
 if(FUGAKU_NODE_TYPE STREQUAL "CN")
 	option(ENABLE_FUGAKU_HACKS "Fugaku hacks" ON)
-	option(ENABLE_FUGAKU_DEBUG "Fugaku debug instrumentation" ON)
 else()
 	option(ENABLE_FUGAKU_HACKS "Fugaku hacks" OFF)
-	option(ENABLE_FUGAKU_DEBUG "Fugaku debug instrumentation" OFF)
 endif()
 
 if(ENABLE_FUGAKU_HACKS)
@@ -79,11 +78,20 @@ if(ENABLE_FUGAKU_HACKS)
 	set(KBUILD_C_FLAGS "${KBUILD_C_FLAGS} -DENABLE_FUGAKU_HACKS")
 endif()
 
+# SIGSTOP instead of SIGSEGV, additional IHK Linux kmsg
+option(ENABLE_FUGAKU_DEBUG "Fugaku debug instrumentation" OFF)
+
 if(ENABLE_FUGAKU_DEBUG)
 	add_definitions(-DENABLE_FUGAKU_DEBUG)
 	set(KBUILD_C_FLAGS "${KBUILD_C_FLAGS} -DENABLE_FUGAKU_DEBUG")
 endif()
 
+option(PROFILE_ENABLE "System call profile" ON)
+if(PROFILE_ENABLE)
+	add_definitions(-DPROFILE_ENABLE)
+	set(KBUILD_C_FLAGS "${KBUILD_C_FLAGS} -DPROFILE_ENABLE")
+endif()
+
 option(ENABLE_LINUX_WORK_IRQ_FOR_IKC "Use Linux work IRQ for IKC IPI" ON)
 if (ENABLE_LINUX_WORK_IRQ_FOR_IKC)
 	set(KBUILD_C_FLAGS "${KBUILD_C_FLAGS} -DIHK_IKC_USE_LINUX_WORK_IRQ")
@@ -289,6 +297,7 @@ message("ENABLE_PERF: ${ENABLE_PERF}")
 message("ENABLE_TOFU: ${ENABLE_TOFU}")
 message("ENABLE_FUGAKU_HACKS: ${ENABLE_FUGAKU_HACKS}")
 message("ENABLE_FUGAKU_DEBUG: ${ENABLE_FUGAKU_DEBUG}")
+message("PROFILE_ENABLE: ${PROFILE_ENABLE}")
 message("ENABLE_RUSAGE: ${ENABLE_RUSAGE}")
 message("ENABLE_QLMPI: ${ENABLE_QLMPI}")
 message("ENABLE_UTI: ${ENABLE_UTI}")

arch/arm64/kernel/include/syscall_list.h

@@ -124,7 +124,7 @@ SYSCALL_HANDLED(271, process_vm_writev)
 SYSCALL_HANDLED(281, execveat)
 SYSCALL_HANDLED(700, get_cpu_id)
 #ifdef PROFILE_ENABLE
-SYSCALL_HANDLED(__NR_profile, profile)
+SYSCALL_HANDLED(PROFILE_EVENT_MAX, profile)
 #endif // PROFILE_ENABLE
 SYSCALL_HANDLED(730, util_migrate_inter_kernel)
 SYSCALL_HANDLED(731, util_indicate_clone)

arch/x86_64/kernel/include/syscall_list.h

@@ -168,7 +168,7 @@ SYSCALL_HANDLED(311, process_vm_writev)
 SYSCALL_HANDLED(322, execveat)
 SYSCALL_HANDLED(700, get_cpu_id)
 #ifdef PROFILE_ENABLE
-SYSCALL_HANDLED(__NR_profile, profile)
+SYSCALL_HANDLED(PROFILE_EVENT_MAX, profile)
 #endif // PROFILE_ENABLE
 SYSCALL_HANDLED(730, util_migrate_inter_kernel)
 SYSCALL_HANDLED(731, util_indicate_clone)

docs/users.rst

@@ -183,3 +183,9 @@ Limitations
 
 26. mmap() allows unlimited overcommit. Note that it corresponds to
     setting sysctl ``vm.overcommit_memory`` to 1.
+
+27. mlockall() is not supported and returns -EPERM.
+
+28. munlockall() is not supported and returns zero.
+
+29. scheduling behavior is not Linux compatible. For example, sometimes one of the two processes on the same CPU continues to run after yielding.

kernel/include/profile.h

@@ -1,9 +1,6 @@
 #ifndef __PROCESS_PROFILE_H_
 #define __PROCESS_PROFILE_H_
 
-/* Uncomment this to enable profiling */
-#define PROFILE_ENABLE
-
 #ifdef PROFILE_ENABLE
 #define PROFILE_SYSCALL_MAX                          2000
 #define PROFILE_OFFLOAD_MAX   (PROFILE_SYSCALL_MAX << 1)
@@ -58,8 +55,6 @@ enum profile_event_type {
 	PROFILE_EVENT_MAX	/* Should be the last event type */
 };
 
-#define __NR_profile                   PROFILE_EVENT_MAX
-
 #ifdef __KERNEL__
 struct thread;
 struct process;
@@ -79,6 +74,8 @@ void profile_dealloc_proc_events(struct process *proc);
 #include <unistd.h>
 #include <sys/syscall.h>
 
+#define __NR_profile                   PROFILE_EVENT_MAX
+
 /* Per-thread */
 static inline void mckernel_profile_thread_on(void)
 {

kernel/include/syscall.h

@@ -20,6 +20,7 @@
 #include <ihk/ikc.h>
 #include <rlimit.h>
 #include <time.h>
+#include <profile.h>
 
 #define NUM_SYSCALLS 255