This fixes a bug when using -m isa-serial where qemu-ga will hang on a read()'s when communicating to the host via isa-serial.
Original fix by Michael Roth. Signed-off-by: Luiz Capitulino <lcapitul...@redhat.com> --- qemu-ga.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/qemu-ga.c b/qemu-ga.c index 200bb15..98e4dfe 100644 --- a/qemu-ga.c +++ b/qemu-ga.c @@ -504,7 +504,7 @@ static void init_guest_agent(GAState *s) exit(EXIT_FAILURE); } } else if (strcmp(s->method, "isa-serial") == 0) { - fd = qemu_open(s->path, O_RDWR | O_NOCTTY); + fd = qemu_open(s->path, O_RDWR | O_NOCTTY | O_NONBLOCK); if (fd == -1) { g_critical("error opening channel: %s", strerror(errno)); exit(EXIT_FAILURE); -- 1.7.8.2.321.g4570a.dirty