A sync read should block until all requested data is available (instead of retrying in qemu_chr_fe_read_all). Change the channel to blocking during sync_read.
Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com> --- chardev/char-socket.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index ccc499cfa1..7e6648b03a 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -454,7 +454,9 @@ static int tcp_chr_sync_read(Chardev *chr, const uint8_t *buf, int len) return 0; } + qio_channel_set_blocking(s->ioc, true, NULL); size = tcp_chr_recv(chr, (void *) buf, len); + qio_channel_set_blocking(s->ioc, false, NULL); if (size == 0) { /* connection closed */ tcp_chr_disconnect(chr); -- 2.13.1.395.gf7b71de06