[Bug 55726] spice-server wrongly disconnects client

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55726

--- Comment #5 from Hans de Goede <jwrdegoede at fedoraproject.org> ---
(In reply to comment #4)
> > This is not what I'm seeing, what I'm seeing is:
> > 1) repeated guest agent opening / closing of the virtio serial port, caused
> > by using an agent which does not yet have this fix:
> > http://cgit.freedesktop.org/spice/linux/vd_agent/commit/
> > ?id=9a58d8ee70c13677a1b62a2c8af694829c7afec5
> > 
> > 2) That triggering the race I described above (it could even be the agent
> > hello message which is triggering this).
> > 
> > After this has happened, simply re-connecting with remote-viewer works fine,
> > iow not the same as what you're seeing.
> 
> OK, I agree it is not what I am seeing. The "channel refused to allocate
> buffer" on main channel happens only for SPICE_VDAGENT_DATA messages when
> there are no tokens.

It does not only happen when there are no tokens, it also happens when there is
no agent, what we need to do is differentiate between the 2, and not disconnect
the client when it sends an agent message when there is no agent, assuming the
client has hit the described race.

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