iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

selftests/clone3: check that all pids are released on error paths

Browse Source 
This is a regression test case for an issue when pids have not been
released on error paths.

Signed-off-by: Andrei Vagin <avagin@gmail.com>
Link: https://lore.kernel.org/r/20191118064750.408003-3-avagin@gmail.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Andrei Vagin 2019-11-17 22:47:50 -08:00 committed by Christian Brauner
parent 28df751539
commit a019ff3b8b
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
tools/testing/selftests/clone3/clone3_set_tid.c
View File

@ -160,7 +160,7 @@ int main(int argc, char *argv[])
ksft_exit_fail_msg("pipe() failed\n");
ksft_print_header();
ksft_set_plan(27);
ksft_set_plan(29);
f = fopen("/proc/sys/kernel/pid_max", "r");
if (f == NULL)
@ -290,6 +290,18 @@ int main(int argc, char *argv[])
/* Let's create a PID 1 */
ns_pid = fork();
if (ns_pid == 0) {
/*
* This and the next test cases check that all pid-s are
* released on error paths.
*/
set_tid[0] = 43;
set_tid[1] = -1;
test_clone3_set_tid(set_tid, 2, 0, -EINVAL, 0, 0);
set_tid[0] = 43;
set_tid[1] = pid;
test_clone3_set_tid(set_tid, 2, 0, 0, 43, 0);
ksft_print_msg("Child in PID namespace has PID %d\n", getpid());
set_tid[0] = 2;
test_clone3_set_tid(set_tid, 1, 0, 0, 2, 0);
@ -366,7 +378,7 @@ int main(int argc, char *argv[])
if (!WIFEXITED(status))
ksft_test_result_fail("Child error\n");
ksft_cnt.ksft_pass += 4 - (ksft_cnt.ksft_fail - WEXITSTATUS(status));
ksft_cnt.ksft_pass += 6 - (ksft_cnt.ksft_fail - WEXITSTATUS(status));
ksft_cnt.ksft_fail = WEXITSTATUS(status);
if (ns3 == pid && ns2 == 42 && ns1 == 1)