On 02.01.2012, at 16:41, Christian Borntraeger wrote: > On 02/01/12 16:34, Alexander Graf wrote: >>>> if (ret == -EAGAIN || (ret >= 0 && ret < buf_size)) { >>>> virtio_serial_throttle_port(port, true); >>> >>> Ah; I see what's happening. pty_chr_write() returns 0 if a client >>> isn't yet connected. >>> >>> This is different from the buggy tcp_chr_write() code, which just >>> returns 'len', i.e. a successful write. And since I've only tested >>> with tcp/unix sockets, I couldn't see why throttling could get >>> enabled. >> >> So what's the conclusion then? :) > > My conclusion is that with my patch virtio-console on a pty works, without > it doesnt. :-) > I think Amit said that he is going to apply the patch.
Ah, alright then :) Alex