Log scan lock failures that are not contention

1 file changed, 6 insertions, 1 deletion

diff --git a/source/cgit.c b/source/cgit.c
index 42325a0..37b07d7 100644
--- a/source/cgit.c
+++ b/source/cgit.c
@@ -366,8 +366,13 @@ static int generate_cached_repolist(const char *path, const char *cached_rc)
 	}
 	if (fcntl(fd, F_SETLK, &lock) < 0) {
 		// A lock held elsewhere only means concurrent requests, which
-		// is not worth a line in the server log.
+		// is not worth a line in the server log. Any other failure, a
+		// filesystem without lock support say, silently costs a scan
+		// on every request and does deserve one.
 		err = errno;
+		if (err != EACCES && err != EAGAIN)
+			fprintf(stderr, "[cgit] Error locking %s: %s (%d)\n",
+				locked_rc.buf, strerror(err), err);
 		close(fd);
 		goto out;
 	}