diff options
| -rw-r--r-- | src/core/manager.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/core/manager.c b/src/core/manager.c index 5253cb3712..ab65d630a1 100644 --- a/src/core/manager.c +++ b/src/core/manager.c @@ -1722,14 +1722,13 @@ static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); if (n < 0) { - if (!IN_SET(errno, EAGAIN, EINTR)) - log_error("Failed to receive notification message: %m"); + if (IN_SET(errno, EAGAIN, EINTR)) + return 0; /* Spurious wakeup, try again */ - /* It's not an option to return an error here since it - * would disable the notification handler entirely. Services - * wouldn't be able to send the WATCHDOG message for - * example... */ - return 0; + /* If this is any other, real error, then let's stop processing this socket. This of course means we + * won't take notification messages anymore, but that's still better than busy looping around this: + * being woken up over and over again but being unable to actually read the message off the socket. */ + return log_error_errno(errno, "Failed to receive notification message: %m"); } CMSG_FOREACH(cmsg, &msghdr) { |