From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36603) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gAeWY-0002Yi-HK for qemu-devel@nongnu.org; Thu, 11 Oct 2018 13:13:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gAeWT-0005wO-F2 for qemu-devel@nongnu.org; Thu, 11 Oct 2018 13:13:22 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52574) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gAeWT-0005vy-9Q for qemu-devel@nongnu.org; Thu, 11 Oct 2018 13:13:17 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 80522308338F for ; Thu, 11 Oct 2018 17:13:16 +0000 (UTC) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Thu, 11 Oct 2018 19:12:54 +0200 Message-Id: <20181011171254.32428-1-philmd@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH] vl: Print error when using incorrect backend for debugcon List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org When using an incorrect backend for the debugcon, QEMU exits silently without any error indication, which is confusing. Add a message that the character backend is invalid. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- vl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/vl.c b/vl.c index 4e25c78bff..61305b5891 100644 --- a/vl.c +++ b/vl.c @@ -2466,6 +2466,7 @@ static int debugcon_parse(const char *devname) QemuOpts *opts; =20 if (!qemu_chr_new_mux_mon("debugcon", devname)) { + error_report("invalid character backend '%s'", devname); exit(1); } opts =3D qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, N= ULL); --=20 2.17.1