Subject: Re: [BUG][2.6.8.1] serial driver hangs SMP kernel, but not the UP
	kernel
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Paul Fulghum <paulkf@microgate.com>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>, Tim_T_Murphy@Dell.com,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
In-Reply-To: <1099093258.5965.41.camel@at2.pipehead.org>
References: <4B0A1C17AA88F94289B0704CFABEF1AB0B4CC4@ausx2kmps304.aus.amer.dell.com>
	 <20041029212029.I31627@flint.arm.linux.org.uk>
	 <1099093258.5965.41.camel@at2.pipehead.org>
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Date: Sat, 30 Oct 2004 23:43:12 +0100
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On Sad, 2004-10-30 at 00:40, Paul Fulghum wrote:
> On Fri, 2004-10-29 at 15:20, Russell King wrote:
> > At a guess, you've enabled "low latency" setting on this port ?
> 
> Would it make sense to do something like (in tty_io.c) the following?

Not really because it can legally occur if you flip the low latency
flag while a transaction is queued. It might work if you waited for
scheduled work to complete in the flag changing.

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