linux-kernel - Re: tty TTY

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Message-ID: <4F04B7FF.5010906@compro.net>
Date:	Wed, 04 Jan 2012 15:35:11 -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>
Subject: Re: tty  TTY_HUPPED anomaly

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

Mark
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