linux-kernel - Re: tty TTY

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Message-ID: <4F04BB90.7090000@compro.net>
Date:	Wed, 04 Jan 2012 15:50:24 -0500
From:	Mark Hounschell <markh@...pro.net>
To:	Jiri Slaby <jslaby@...e.cz>
CC:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Linux-kernel <linux-kernel@...r.kernel.org>,
	Mark Hounschell <dmarkh@....rr.com>,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: tty  TTY_HUPPED anomaly

On 01/04/2012 03:40 PM, Jiri Slaby wrote:
> On 01/04/2012 09:35 PM, Mark Hounschell wrote:
>> On 01/04/2012 03:28 PM, Jiri Slaby wrote:
>>> On 01/04/2012 07:59 PM, Mark Hounschell wrote:
>>>>> I would guess (given the distro change is the trigger) that you've
>>>>> got a
>>>>> SuSE problem not a kernel one. The kernel behaviour and code looks
>>>>> correct. My guess therefore is that newer SuSE is running stuff in the
>>>>> boot which is probing serial ports and messing with the carrier wrongly
>>>>> and in ways it didn't use to. That would fit the fact that something
>>>>> similarly broken has apparently also appeared in the Fedora user space
>>>>> bootup.
>>>
>>> And we (suse) have a report for enterprise, that says ModemManager
>>> causes a similar issue. Could you perhaps check whether you have that
>>> thing installed?
>>>
>>> thanks,
>>
>> Yep. ModemManager-0.5-3.1.3.i586
>
> And what happens if you remove that?
>

It seems to fix my problem. Thanks for stepping in. I was about to take 
this to the SuSE-e list.
Anything else ya need, let me know.

Mark
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