linux-kernel - Re: tty TTY

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Message-ID: <4F04B65D.6070505@suse.cz>
Date:	Wed, 04 Jan 2012 21:28:13 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	markh@...pro.net
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 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,
-- 
js
suse labs
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