diff options
Diffstat (limited to 'contrib/kyua/utils/process/executor_pid_test.cpp')
| -rw-r--r-- | contrib/kyua/utils/process/executor_pid_test.cpp | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/contrib/kyua/utils/process/executor_pid_test.cpp b/contrib/kyua/utils/process/executor_pid_test.cpp deleted file mode 100644 index 22e0b90ba14b..000000000000 --- a/contrib/kyua/utils/process/executor_pid_test.cpp +++ /dev/null @@ -1,208 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause - * - * Copyright (c) 2022 Dell Inc. - * Author: Eric van Gyzen - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 - -1. Run some "bad" tests that prevent kyua from removing the work directory. - We use "chflags uunlink". Mounting a file system from an md(4) device - is another common use case. -2. Fork a lot, nearly wrapping the PID number space, so step 3 will re-use - a PID from step 1. Running the entire FreeBSD test suite is a more - realistic scenario for this step. -3. Run some more tests. If the stars align, the bug is not fixed yet, and - kyua is built with debugging, kyua will abort with the following messages. - Without debugging, the tests in step 3 will reuse the context from step 1, - including stdout, stderr, and working directory, which are still populated - with stuff from step 1. When I found this bug, step 3 was - __test_cases_list__, which expects a certain format in stdout and failed - when it found something completely unrelated. -4. You can clean up with: chflags -R nouunlink /tmp/kyua.*; rm -rf /tmp/kyua.* - -$ cc -o pid_wrap -latf-c pid_wrap.c -$ kyua test -pid_wrap:leak_0 -> passed [0.001s] -pid_wrap:leak_1 -> passed [0.001s] -pid_wrap:leak_2 -> passed [0.001s] -pid_wrap:leak_3 -> passed [0.001s] -pid_wrap:leak_4 -> passed [0.001s] -pid_wrap:leak_5 -> passed [0.001s] -pid_wrap:leak_6 -> passed [0.001s] -pid_wrap:leak_7 -> passed [0.001s] -pid_wrap:leak_8 -> passed [0.001s] -pid_wrap:leak_9 -> passed [0.001s] -pid_wrap:pid_wrap -> passed [1.113s] -pid_wrap:pid_wrap_0 -> passed [0.001s] -pid_wrap:pid_wrap_1 -> passed [0.001s] -pid_wrap:pid_wrap_2 -> passed [0.001s] -pid_wrap:pid_wrap_3 -> *** /usr/src/main/contrib/kyua/utils/process/executor.cpp:779: Invariant check failed: PID 60876 already in all_exec_handles; not properly cleaned up or reused too fast -*** Fatal signal 6 received -*** Log file is /home/vangyzen/.kyua/logs/kyua.20221006-193544.log -*** Please report this problem to kyua-discuss@googlegroups.com detailing what you were doing before the crash happened; if possible, include the log file mentioned above -Abort trap (core dumped) - -#endif - -#include <sys/stat.h> - -#include <atf-c++.hpp> - -#include <fcntl.h> -#include <signal.h> -#include <unistd.h> - -#include <cerrno> -#include <cstring> - -void -leak_work_dir() -{ - int fd; - - ATF_REQUIRE((fd = open("unforgettable", O_CREAT|O_EXCL|O_WRONLY, 0600)) - >= 0); - ATF_REQUIRE_EQ(0, fchflags(fd, UF_NOUNLINK)); - ATF_REQUIRE_EQ(0, close(fd)); -} - -void -wrap_pids() -{ - pid_t begin, current, target; - bool wrapped; - - begin = getpid(); - target = begin - 15; - if (target <= 1) { - target += 99999; // PID_MAX - wrapped = true; - } else { - wrapped = false; - } - - ATF_REQUIRE(signal(SIGCHLD, SIG_IGN) != SIG_ERR); - - do { - current = vfork(); - if (current == 0) { - _exit(0); - } - ATF_REQUIRE(current != -1); - if (current < begin) { - wrapped = true; - } - } while (!wrapped || current < target); -} - -void -test_work_dir_reuse() -{ - // If kyua is built with debugging, it would abort here before the fix. -} - -void -clean_up() -{ - (void)system("chflags -R nouunlink ../.."); -} - -ATF_TEST_CASE_WITHOUT_HEAD(leak_0); -ATF_TEST_CASE_BODY(leak_0) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_1); -ATF_TEST_CASE_BODY(leak_1) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_2); -ATF_TEST_CASE_BODY(leak_2) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_3); -ATF_TEST_CASE_BODY(leak_3) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_4); -ATF_TEST_CASE_BODY(leak_4) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_5); -ATF_TEST_CASE_BODY(leak_5) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_6); -ATF_TEST_CASE_BODY(leak_6) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_7); -ATF_TEST_CASE_BODY(leak_7) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_8); -ATF_TEST_CASE_BODY(leak_8) { leak_work_dir(); } -ATF_TEST_CASE_WITHOUT_HEAD(leak_9); -ATF_TEST_CASE_BODY(leak_9) { leak_work_dir(); } - -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap); -ATF_TEST_CASE_BODY(pid_wrap) { wrap_pids(); } - -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_0); -ATF_TEST_CASE_BODY(pid_wrap_0) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_1); -ATF_TEST_CASE_BODY(pid_wrap_1) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_2); -ATF_TEST_CASE_BODY(pid_wrap_2) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_3); -ATF_TEST_CASE_BODY(pid_wrap_3) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_4); -ATF_TEST_CASE_BODY(pid_wrap_4) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_5); -ATF_TEST_CASE_BODY(pid_wrap_5) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_6); -ATF_TEST_CASE_BODY(pid_wrap_6) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_7); -ATF_TEST_CASE_BODY(pid_wrap_7) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_8); -ATF_TEST_CASE_BODY(pid_wrap_8) { test_work_dir_reuse(); } -ATF_TEST_CASE_WITHOUT_HEAD(pid_wrap_9); -ATF_TEST_CASE_BODY(pid_wrap_9) { test_work_dir_reuse(); } - -ATF_TEST_CASE_WITHOUT_HEAD(really_clean_up); -ATF_TEST_CASE_BODY(really_clean_up) { clean_up(); } - -ATF_INIT_TEST_CASES(tcs) -{ - ATF_ADD_TEST_CASE(tcs, leak_0); - ATF_ADD_TEST_CASE(tcs, leak_1); - ATF_ADD_TEST_CASE(tcs, leak_2); - ATF_ADD_TEST_CASE(tcs, leak_3); - ATF_ADD_TEST_CASE(tcs, leak_4); - ATF_ADD_TEST_CASE(tcs, leak_5); - ATF_ADD_TEST_CASE(tcs, leak_6); - ATF_ADD_TEST_CASE(tcs, leak_7); - ATF_ADD_TEST_CASE(tcs, leak_8); - ATF_ADD_TEST_CASE(tcs, leak_9); - - ATF_ADD_TEST_CASE(tcs, pid_wrap); - - ATF_ADD_TEST_CASE(tcs, pid_wrap_0); - ATF_ADD_TEST_CASE(tcs, pid_wrap_1); - ATF_ADD_TEST_CASE(tcs, pid_wrap_2); - ATF_ADD_TEST_CASE(tcs, pid_wrap_3); - ATF_ADD_TEST_CASE(tcs, pid_wrap_4); - ATF_ADD_TEST_CASE(tcs, pid_wrap_5); - ATF_ADD_TEST_CASE(tcs, pid_wrap_6); - ATF_ADD_TEST_CASE(tcs, pid_wrap_7); - ATF_ADD_TEST_CASE(tcs, pid_wrap_8); - ATF_ADD_TEST_CASE(tcs, pid_wrap_9); - - ATF_ADD_TEST_CASE(tcs, really_clean_up); -} |