From mboxrd@z Thu Jan  1 00:00:00 1970
From: Matthew Wilcox <matthew@wil.cx>
Date: Fri, 02 Jun 2006 11:53:59 +0000
Subject: Re: IA64: Broken Serial Console
Message-Id: <20060602115359.GG32143@parisc-linux.org>
List-Id: <linux-ia64.vger.kernel.org>
References: <44128F9D.7050402@sgi.com> <200603112017.k2BKHcg20412@unix-os.sc.intel.com> <20060310082445.GA18715@verge.net.au> <yq0irqm39r8.fsf@jaguar.mkp.net> <20060311034346.GI11359@verge.net.au> <44128F9D.7050402@sgi.com> <20060313040825.GA31703@verge.net.au> <20060602114805.GA1462@verge.net.au>
In-Reply-To: <20060602114805.GA1462@verge.net.au>
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To: Horms <horms@verge.net.au>
Cc: linux-ia64@vger.kernel.org, linux-serial@vger.kernel.org, Bjorn Helgaas <bjorn.helgaas@hp.com>, Russell King <rmk+kernel@arm.linux.org.uk>

On Fri, Jun 02, 2006 at 08:48:06PM +0900, Horms wrote:
> I have noticed that the serial console on my ia64 machine seems
> to have broken since 2.6.16. Thanks to git bisect I have been
> able to track this problem down to 111c9bf8c5cfa92363b3719c8956d29368b5b9de
> 
>   [SERIAL] remove 8250_acpi (replaced by 8250_pnp and PNPACPI)
> 
>   With the combination of PNPACPI and 8250_pnp, we no longer need
>   8250_acpi.
> 
>   Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
>   Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
> 
> I haven't had time to look into the code and I have to leave
> my desk shortly, so I thought I would post here to see if anyone
> has any ideas.

Well, does your config have PNPACPI and SERIAL_8250_PNP enabled?