linux-kernel - Re: [PATCH 15/15] tty: serial: 8250: omap: add dma support

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Message-ID: <5400AAF7.5060401@linutronix.de>
Date:	Fri, 29 Aug 2014 18:31:51 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Tony Lindgren <tony@...mide.com>
CC:	balbi@...com, linux-serial@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Vinod Koul <vinod.koul@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Paul Walmsley <paul@...an.com>
Subject: Re: [PATCH 15/15] tty: serial: 8250: omap: add dma support

On 08/29/2014 06:12 PM, Tony Lindgren wrote:
> Looks like the paste bug is there for sure, doing off idle and pasting
> 240 characters to the console can hang the UART RX after few attempts,
> and pasting 16 charactes won't show up at all if the system is idling.
> So you may want to play with that too a bit :)

Oh. perfect. Please note that we the threshold moved from 16 to 48.
However I see that usually we lose a lot of characters before the uart
wakes up and does its job. Usually I see a couple characters but
sometimes is see broken characters which suggests that the clock was
not (yet) perfect. And I managed not get get it woken once.
So let me look at this once I am through with the review responses…

> 
> Regards,
> 
> Tony
> 
Sebastian
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