wireguard-linux/tools/testing/selftests/pid_namespace, branch jd/unified-crypt-queueWireGuard for the Linux kernelhttps://git.zx2c4.com/wireguard-linux/atom/tools/testing/selftests/pid_namespace?h=jd%2Funified-crypt-queue2020-03-25T12:50:34Zselftests: add pid namespace ENOMEM regression test2020-03-25T12:50:34ZChristian Braunerchristian.brauner@ubuntu.com2020-03-08T16:26:32Zurn:sha1:6952a4f646446fde9e190b62c5e45f84c6cf91aa
We recently regressed (cf. [1] and its corresponding fix in [2]) returning
ENOMEM when trying to create a process in a pid namespace whose init
process/child subreaper has already died. This has caused confusion at
least once before that (cf. [3]). Let's add a simple regression test to
catch this in the future.
[1]: 49cb2fc42ce4 ("fork: extend clone3() to support setting a PID")
[2]: b26ebfe12f34 ("pid: Fix error return value in some cases")
[3]: 35f71bc0a09a ("fork: report pid reservation failure properly")
Cc: Corey Minyard <cminyard@mvista.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Adrian Reber <areber@redhat.com>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>