Test "make sure to context-switch to idle thread when therad's status is PS_EXITED" on arm64
Change-Id: I757d529e49655e9010022f10414e4d6c9eb4c059 Refs: #1029
This commit is contained in:
committed by
Masamichi Takagi
parent
01b2a1d213
commit
0ee446923a
16
test/mng_mod/issues/1029/arm64/Makefile
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16
test/mng_mod/issues/1029/arm64/Makefile
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@ -0,0 +1,16 @@
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# Makefile COPYRIGHT FUJITSU LIMITED 2018
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CC=gcc
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TARGET=sched_test go_test
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all:: $(TARGET)
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sched_test: sched_test.c
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$(CC) -o $@ $<
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go_test: go_test.c
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$(CC) -o $@ $<
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test:: $(TARGET)
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./run.sh
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clean::
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rm -f $(TARGET)
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85
test/mng_mod/issues/1029/arm64/README
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85
test/mng_mod/issues/1029/arm64/README
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@ -0,0 +1,85 @@
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/* README COPYRIGHT FUJITSU LIMITED 2018 */
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McKernel プロセスへ直接送信されたシグナルによるfutex の中断機能
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テストセットREADME
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(1) テストの実行方法
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以下の手順でテストを実行する
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1. $HOME/.mck_test_configを用意する
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当該ファイルは、McKernelをビルドした際に生成されるmck_test_config.sample ファイルを
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$HOMEにコピーし、適宜編集する
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mcreboot.shのオプションには-Oを付与すること
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2. run.sh内のSTRESSBINにストレステストセットのパスを設定する
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3. patch/1029.patchを適用し、ビルドしたMcKernelを用意する
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4. make test を実行する
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(2) テスト項目詳細
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1. ストレステストを用いた確認
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ISSUE01: futex_wait()で待っているプロセスをKILLシグナルで終了させても問題がないこと。
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→ 全てSUCCESS で、McKernel上にプロセスとスレッドの残留が無ければOK
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2. 基本動作確認
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schedule()実行時のコンテキストスイッチ前thread(prev)と、
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runqに積まれている実行待ちthreadの状態の以下の組み合わせで、
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schedule()が想定どおりの動作をすることを確認する。
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◆prevがidleのケース
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CT_001: runqが空
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⇒ コンテキストスイッチを行わない
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CT_002: runqに実行待ちのthreadが存在し、且つ、そのthreadが1度も実行状態になっていない
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⇒ 非idleのthreadにスイッチする
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CT_003: runqに実行待ちのthreadが存在し、且つ、そのthreadが実行状態になったことがある
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⇒ 非idleのthreadにスイッチする
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◆schedule時点で当該CPUのCPU_FLAGS_NEED_MIGRATEが活性化しているケース
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CT_004: runqが空
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⇒ idleにスイッチする
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CT_005: runqに実行待ちのthreadが存在し、且つ、そのthreadが1度も実行状態になっていない
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⇒ idleにスイッチする
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CT_006: runqに実行待ちのthreadが存在し、且つ、そのthreadが実行状態になったことがある
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⇒ idleにスイッチする
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◆prevがidle以外で、statusがPS_EXITED以外:
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CT_007: runqが空
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⇒ idleにスイッチする
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CT_008: runqに実行待ちのthreadが存在し、且つ、そのthreadが1度も実行状態になっていない
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⇒ 非idleのthreadにスイッチする
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CT_009: runqに実行待ちのthreadが存在し、且つ、そのthreadが実行状態になったことがある
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⇒ 非idleのthreadにスイッチする
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◆prevがidle以外で、statusがPS_EXITED:
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CT_010: runqが空
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⇒ idleにスイッチする
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CT_011: runqに実行待ちのthreadが存在し、且つ、そのthreadが1度も実行状態になっていない
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⇒ idleにスイッチする
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CT_012: runqに実行待ちのthreadが存在し、且つ、そのthreadが実行状態になったことがある
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⇒ idleにスイッチする
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(3) 実行結果ログ
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result.logファイル内に実行時のログを記載する。
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実行に利用したIHK/McKernelは、IA版における下記の版数相当の
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arm64版移植IHK/McKernelである。
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IHK
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commit d6fcbee8cb91f9ec4b49f97c918e696ac0335aaf
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Author: Shiratori, Takehiro <fj0300es@aa.jp.fujitsu.com>
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Date: Tue Oct 16 16:25:33 2018 +0900
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McKernel
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commit 6f9fef2b13447c74c36d15cf5ebd186f8395ccca
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Author: Ken Sato <ken.sato.ty@hitachi-solutions.com>
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Date: Tue Sep 25 10:05:41 2018 +0900
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(4) 備考
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特になし。
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以上。
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41
test/mng_mod/issues/1029/arm64/go_test.c
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41
test/mng_mod/issues/1029/arm64/go_test.c
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@ -0,0 +1,41 @@
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#define DEF_LOOPS 10
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int main(int argc, char** argv) {
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pid_t pid[256];
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int result, i, j;
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int loops = DEF_LOOPS;
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char *_argv[3];
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if (argc > 1) {
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loops = atoi(argv[1]);
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}
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for (i = 0; i < loops && (pid[i] = fork()) > 0; i++);
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if (i == loops) { // parent
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for (i = 0; i < loops; i++) {
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printf("go_test parent pid=%d\n", getpid());
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waitpid(pid[i], NULL, 0);
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}
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}
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else if (pid[i] == 0) {
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printf("go_test child pid=%d\n", getpid());
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_argv[0] = "./sched_test";
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_argv[1] = "4";
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_argv[2] = NULL;
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execve(_argv[0], _argv, NULL);
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perror("execve");
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}
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else {
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perror("Error fork()");
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return(1);
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}
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return(0);
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}
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165
test/mng_mod/issues/1029/arm64/patch/1029.patch
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165
test/mng_mod/issues/1029/arm64/patch/1029.patch
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@ -0,0 +1,165 @@
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diff --git a/kernel/include/process.h b/kernel/include/process.h
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index 2007abf..45232f0 100644
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--- a/kernel/include/process.h
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+++ b/kernel/include/process.h
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@@ -723,6 +723,9 @@ struct thread {
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// for performance counter
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unsigned long pmc_alloc_map;
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unsigned long extra_reg_alloc_map;
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+
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+// TestCode for #1029
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+int started;
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};
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#define VM_RANGE_CACHE_SIZE 4
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diff --git a/kernel/process.c b/kernel/process.c
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index 83a94fa..79fa37b 100644
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--- a/kernel/process.c
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+++ b/kernel/process.c
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@@ -3255,12 +3255,16 @@ out_schedule:
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schedule();
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}
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+// TestCode for #1029
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+int cases[13] = {0};
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void schedule(void)
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{
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struct cpu_local_var *v;
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struct thread *next, *prev, *thread, *tmp = NULL;
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int switch_ctx = 0;
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struct thread *last;
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+// TestCode for #1029
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+int runq_cnt = 0, case_num = 0, not_started = 0;
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if (cpu_local_var(no_preempt)) {
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kprintf("%s: WARNING can't schedule() while no preemption, cnt: %d\n",
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@@ -3289,6 +3293,70 @@ void schedule(void)
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}
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}
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+// TestCode for #1029
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+// flag for thread is started or not
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+if (prev) {
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+ prev->started = 1;
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+}
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+
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+// check runq
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+runq_cnt = 0;
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+not_started = 0;
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+list_for_each_entry_safe(thread, tmp, &(v->runq), sched_list) {
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+ if (thread->tid == prev->tid) {
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+ continue;
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+ }
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+
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+ /* Skip not-schedulable */
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+ if (thread->status == PS_RUNNING ||
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+ (thread->status == PS_INTERRUPTIBLE && hassigpending(thread))) {
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+ } else {
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+ continue;
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+ }
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+
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+ runq_cnt++;
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+ if (!thread->started) {
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+ not_started = 1;
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+ }
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+}
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+
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+// test cases
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+if (!prev) {
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+ case_num = 0;
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+} else if (prev == &cpu_local_var(idle)) { // prev is idle
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+ if (runq_cnt == 0) { // runq is empty
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+ case_num = 1;
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+ } else if (not_started) { // runq has other NOT_started thread
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+ case_num = 2;
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+ } else { // runq has other started thread
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+ case_num = 3;
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+ }
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+} else if (v->flags & CPU_FLAG_NEED_MIGRATE) { // prev is NEED_MIGRATE
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+ if (runq_cnt == 0) { // runq is empty
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+ case_num = 4;
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+ } else if (not_started) { // runq has other NOT_started thread
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+ case_num = 5;
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+ } else { // runq has other started thread
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+ case_num = 6;
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+ }
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+} else if (prev->status != PS_EXITED) { // prev is NOT EXITED
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+ if (runq_cnt == 0) { // runq is empty
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+ case_num = 7;
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+ } else if (not_started) { // runq has other NOT_started thread
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+ case_num = 8;
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+ } else { // runq has other started thread
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+ case_num = 9;
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+ }
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+} else { // prev is NOT EXITED
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+ if (runq_cnt == 0) { // runq is empty
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+ case_num = 10;
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+ } else if (not_started) { // runq has other NOT_started thread
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+ case_num = 11;
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+ } else { // runq has other started thread
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+ case_num = 12;
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+ }
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+}
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+
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/* Switch to idle() when prev is PS_EXITED since it always reaches release_thread()
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because it always resumes from just after ihk_mc_switch_context() call. See #1029 */
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if (v->flags & CPU_FLAG_NEED_MIGRATE ||
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@@ -3324,6 +3392,58 @@ void schedule(void)
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set_timer(1);
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+// TestCode for #1029
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+switch (case_num) {
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+case 0:
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+ break;
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+case 1:
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+ if (!cases[case_num]) {
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+ if (!switch_ctx) {
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+ kprintf("[OK] CT_%03d not_switch\n", case_num);
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+ } else {
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+ kprintf("[NG] CT_%03d %d -> %d\n", case_num, prev->tid, next->tid);
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+ }
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+ cases[case_num] = 1;
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+ }
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+ break;
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+case 4:
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+case 5:
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+case 6:
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+case 7:
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+case 10:
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+case 11:
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+case 12:
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+ // switch to idle
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+ if (!cases[case_num]) {
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+ if (next == &cpu_local_var(idle)) {
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+ kprintf("[OK] CT_%03d %d => %d\n", case_num,
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+ prev ? prev->tid : 0, next ? next->tid : 0);
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+ } else {
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+ kprintf("[NG] CT_%03d %d => %d\n", case_num, prev->tid, next->tid);
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+ }
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+ cases[case_num] = 1;
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+ }
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+ break;
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+case 2:
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+case 3:
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+case 8:
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+case 9:
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+ // switch to NOT idle
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+ if (!cases[case_num]) {
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+ if (next != &cpu_local_var(idle)) {
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+ kprintf("[OK] CT_%03d %d => %d\n", case_num,
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+ prev ? prev->tid : 0, next ? next->tid : 0);
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+ } else {
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+ kprintf("[NG] CT_%03d\n", case_num);
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+ }
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+ cases[case_num] = 1;
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+ }
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+ break;
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+
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+default:
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+ kprintf("unexpected case_num\n");
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+}
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+
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if (switch_ctx) {
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dkprintf("schedule: %d => %d \n",
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prev ? prev->tid : 0, next ? next->tid : 0);
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46
test/mng_mod/issues/1029/arm64/result.log
Normal file
46
test/mng_mod/issues/1029/arm64/result.log
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@ -0,0 +1,46 @@
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gcc -o sched_test sched_test.c
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gcc -o go_test go_test.c
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./run.sh
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mcstop+release.sh ... done
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mcreboot.sh -c 4-15 -m 4G@0,4G@1,4G@2,4G@3 -O ... done
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SUCCESS kmsg
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SUCCESS clear_kmsg
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timeout -s 9 60 /opt/ppos//bin/mcexec /opt/stress_test/src/killit -np 16 -nosignal /opt/stress_test/src/signalonfutex 1> /tmp/dtest.log 2>&1
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SUCCESS mcexec
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SUCCESS mcexec /opt/stress_test/src/killit -np 16 -nosignal /opt/stress_test/src/signalonfutex
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SUCCESS kmsg
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mck-mcexec.sh: WARNING: kmsg isn't empty
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=== kmsg begins ====
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[ 0]: [OK] CT_002 0 => 2514
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[ 1]: [OK] CT_007 2529 => 1
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[ 7]: [OK] CT_010 2603 => 7
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[ 1]: [OK] CT_003 1 => 2529
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[ 0]: [OK] CT_008 2514 => 2758
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[ 1]: [OK] CT_009 2785 => 2700
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[ 1]: [OK] CT_012 2831 => 1
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[ 0]: fileobj_free(ffff800042231040 ffff8003c42cdb00): free failed. -32
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[ 0]: fileobj_free(ffff8000422d0020 ffff8003c42cda80): free failed. -32
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=== kmsg ends ====
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SUCCESS ioctl 40000000 1
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SUCCESS kmsg
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SUCCESS 0 processes found
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SUCCESS ioctl 40000000 2
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SUCCESS kmsg
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SUCCESS 0 threads found
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SUCCESS mcexec not found
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ISSUE01: OK
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mcstop+release.sh ... done
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mcreboot.sh -c 4-15 -m 4G@0,4G@1,4G@2,4G@3 -O ... done
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[OK] CT_001 not_switch
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[OK] CT_002 0 => 3216
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[OK] CT_003 1 => 3231
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[OK] CT_004 3245 => 2
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[OK] CT_005 3530 => 1
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[OK] CT_006 3361 => 1
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[OK] CT_007 3216 => 0
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[OK] CT_008 3231 => 3331
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[OK] CT_009 3231 => 3245
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[OK] CT_010 3440 => 1
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[OK] CT_011 3362 => 1
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[OK] CT_012 3361 => 1
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22
test/mng_mod/issues/1029/arm64/run.sh
Executable file
22
test/mng_mod/issues/1029/arm64/run.sh
Executable file
@ -0,0 +1,22 @@
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#!/bin/sh
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## run.sh COPYRIGHT FUJITSU LIMITED 2018 ##
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USELTP=0
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USEOSTEST=0
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. ../../../../common.sh
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STRESSBIN=
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${STRESSBIN}/mck-mcexec.sh ${STRESSBIN}/killit -np 16 -nosignal ${STRESSBIN}/signalonfutex
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if [ $? == 0 ]; then
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echo "ISSUE01: OK"
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else
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echo "ISSUE01: NG"
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fi
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mcstop
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mcreboot
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${MCEXEC} ./go_test 10 > /dev/null
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${IHKOSCTL} 0 kmsg | grep CT_ | cut -f 2 -d ":" | sort
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75
test/mng_mod/issues/1029/arm64/sched_test.c
Normal file
75
test/mng_mod/issues/1029/arm64/sched_test.c
Normal file
@ -0,0 +1,75 @@
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sched.h>
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#define DEF_LOOPS 10
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int main(int argc, char** argv) {
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pid_t pid[256];
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cpu_set_t cpu_set;
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int result, i, j;
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int loops = DEF_LOOPS;
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if (argc > 1) {
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loops = atoi(argv[1]);
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}
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CPU_ZERO(&cpu_set);
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CPU_SET(1, &cpu_set);
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result = sched_setaffinity(0, sizeof(cpu_set_t), &cpu_set);
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if (result != 0) {
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perror("Error sched_setaffinity()");
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return(1);
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}
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for (i = 0; i < loops && (pid[i] = fork()) > 0; i++);
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if (i == loops) { // parent
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for (i = 0; i < loops; i++) {
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printf("sched_test parent pid=%d\n", getpid());
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waitpid(pid[i], NULL, 0);
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}
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}
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else if (pid[i] == 0) {
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printf("sched_test child pid=%d\n", getpid());
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cpu_set_t child_set;
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CPU_ZERO(&child_set);
|
||||
CPU_SET(2, &child_set);
|
||||
result = sched_setaffinity(0, sizeof(cpu_set_t), &child_set);
|
||||
if (result != 0) {
|
||||
perror("Error sched_setaffinity() on child");
|
||||
}
|
||||
|
||||
result = sched_yield();
|
||||
if (result != 0) {
|
||||
perror("Error sched_yield()");
|
||||
}
|
||||
|
||||
CPU_ZERO(&child_set);
|
||||
CPU_SET(1, &child_set);
|
||||
result = sched_setaffinity(0, sizeof(cpu_set_t), &child_set);
|
||||
if (result != 0) {
|
||||
perror("Error sched_setaffinity() on child");
|
||||
}
|
||||
|
||||
result = sched_yield();
|
||||
if (result != 0) {
|
||||
perror("Error sched_yield()");
|
||||
}
|
||||
|
||||
printf("child[%d] is done.\n", i);
|
||||
return(0);
|
||||
}
|
||||
else {
|
||||
perror("Error fork()");
|
||||
return(1);
|
||||
}
|
||||
printf("parent is done.\n");
|
||||
|
||||
return(0);
|
||||
}
|
||||
Reference in New Issue
Block a user