Better SIGCHLD handling for #2897 debugging.waitpid-fix

1 files changed, 1 insertions, 0 deletions

diff --git a/src/bio.c b/src/bio.c
index 4bd5a17c6..66e1afd7f 100644
--- a/src/bio.c
+++ b/src/bio.c
@@ -152,6 +152,7 @@ void *bioProcessBackgroundJobs(void *arg) {
      * receive the watchdog signal. */
     sigemptyset(&sigset);
     sigaddset(&sigset, SIGALRM);
+    sigaddset(&sigset, SIGCHLD);
     if (pthread_sigmask(SIG_BLOCK, &sigset, NULL))
         redisLog(REDIS_WARNING,
             "Warning: can't mask SIGALRM in bio.c thread: %s", strerror(errno));