From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Guntsche <mike@it-loops.com>
Date: Wed, 07 Oct 2009 21:52:48 +0000
Subject: Re: [BUG] No ttyS0 - Strange udev 8250_pnp interaction
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To: Kay Sievers <kay.sievers@vrfy.org>
Cc: Alan Jenkins <sourcejedi.lkml@googlemail.com>, linux-kernel <linux-kernel@vger.kernel.org>, linux-hotplug <linux-hotplug@vger.kernel.org>

On 2009.10.07 23:23:22 , Kay Sievers wrote:
> Michael, you mentioned trying the udev git version. Any chance to check
> if that fixes it?
> 
> Thanks,
> Kay
> 
<snip>

I applied it to current git and gave it a quick spin with.

rmmod 8250_pnp;sleep 1;ls -la /dev/ttyS*;modprobe 8250_pnp;sleep 1;ls
-la /dev/ttyS*

I was not able to reproduce the problem even after 30 runs.
I will let it run some more just to be sure but so far it looks good.

Michael