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zdtm/tempfs_subns: sync children with the main process

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All static tests has to stop any activity before C/R.

./tempfs_subns --pidfile=tempfs_subns.pid --outfile=tempfs_subns.out --dirname=tempfs_subns.test
Run criu dump
Unable to kill 128: [Errno 3] No such process
Run criu restore
7: Old mounts lost: []
7: New mounts appeared: [('/rootfs/criu/test', '/'), ('/', '/proc'), ('/', '/dev/pts')]
:

Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This commit is contained in:
Andrei Vagin
2017-11-30 01:55:36 +03:00
parent 35f7f5e360
commit 514510ba87
1 changed files with 5 additions and 5 deletions
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10
test/zdtm/static/tempfs_subns.c
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@@ -42,26 +42,26 @@ int main(int argc, char **argv)
pid = fork();
if (pid == 0) {
if (write(fds[1], &fd, sizeof(fd)) != sizeof(fd)) {
pr_perror("write");
return 1;
}
if (unshare(CLONE_NEWNS)) {
pr_perror("unshare");
return 1;
}
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
if (write(fds[1], &fd, sizeof(fd)) != sizeof(fd)) {
pr_perror("write");
return 1;
}
while (1)
sleep(1);
return 1;
}
pid = fork();
if (pid == 0) {
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
if (write(fds[1], &fd, sizeof(fd)) != sizeof(fd)) {
pr_perror("write");
return 1;
}
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
while (1)
sleep(1);
return 1;