manager: we are not interested in SIGSTOP notifications

1 files changed, 7 insertions, 0 deletions

diff --git a/manager.c b/manager.c
index 36733b0eb5..e7c66099a4 100644
--- a/manager.c
+++ b/manager.c
@@ -72,9 +72,16 @@ static int enable_special_signals(Manager *m) {
 static int manager_setup_signals(Manager *m) {
         sigset_t mask;
         struct epoll_event ev;
+        struct sigaction sa;
 
         assert(m);
 
+        /* We are not interested in SIGSTOP and friends. */
+        zero(sa);
+        sa.sa_handler = SIG_DFL;
+        sa.sa_flags = SA_NOCLDSTOP|SA_RESTART;
+        assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
+
         assert_se(sigemptyset(&mask) == 0);
         assert_se(sigaddset(&mask, SIGCHLD) == 0);
         assert_se(sigaddset(&mask, SIGINT) == 0);   /* Kernel sends us this on control-alt-del */