Merge pull request #3103 from tych0/info-on-enosys

pidfds: don't print a scary warning on ENOSYS

Merge pull request #3103 from tych0/info-on-enosys
d0b95044 · Christian Brauner · GitHub · 5c338ef4 · 9c579205 · d0b95044
Unverified Commit d0b95044 authored Jul 23, 2019 by Christian Brauner Committed by GitHub Jul 23, 2019
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start.c src/lxc/start.c +4 -1

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--- a/src/lxc/start.c
+++ b/src/lxc/start.c
@@ -1641,7 +1641,10 @@ static int proc_pidfd_open(pid_t pid)
 	/* Test whether we can send signals. */
 	if (lxc_raw_pidfd_send_signal(proc_pidfd, 0, NULL, 0)) {
-		SYSERROR("Failed to send signal through pidfd");
+		if (errno != ENOSYS)
+			SYSERROR("Failed to send signal through pidfd");
+		else
+			INFO("Sending signals through pidfds not supported on this kernel");
 		return -1;
 	}