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Date: Thu, 07 Jan 2010 10:01:11 -0600
From: Anthony Liguori <anthony@codemonkey.ws>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] -serial stdio broken
References: <f43fc5580912130024o169488b6wbb9ca7e656b48975@mail.gmail.com>	<20100107115505.GA18269@amd.home.annexia.org>	<20100107121011.GB18269@amd.home.annexia.org>	<4B45D449.1050600@redhat.com>
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To: "Richard W.M. Jones" <rjones@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>, Gerd Hoffmann <kraxel@redhat.com>, qemu-devel <qemu-devel@nongnu.org>

On 01/07/2010 07:25 AM, Richard W.M. Jones wrote:
> On Thu, Jan 07, 2010 at 01:32:09PM +0100, Gerd Hoffmann wrote:
>    
>>    Hi,
>>
>>      
>>> So what seems to be happening here is there is an implicit monitor
>>> being set up which grabs stdio.  Because:
>>>
>>>     #define STDIO_MAX_CLIENTS 1
>>>
>>> my own -serial stdio option subsequently fails.  This is a regression
>>> over previous behaviour.  I didn't specify a monitor device, because I
>>> don't want one, and previous versions of qemu didn't give me one in
>>> nographic mode.
>>>        
>> They gave you a monitor too.  Try typing 'Ctrl-A c' on stdio, and you'll
>> see.  qemu tries to be more clever than you.  Which sucks IMHO.  But
>> getting rid of that without adding regressions seems to be really hard
>> ...
>>
>> Easiest way to workaround this is to simply not specify '-serial stdio'.
>>   It is the default anyway for -nographic, so you don't have to.
>>      
> I want to see the output of the serial port on stdio though.  I don't
> care at all about the monitor.
>    

-nographic gives you that.

nographic is a terrible name.  It really is, use this mode if you want 
to run something and only interact with it through the serial console.

Regards,

Anthony Liguori