From mboxrd@z Thu Jan  1 00:00:00 1970
From: bigeasy@linutronix.de (Sebastian Andrzej Siewior)
Date: Mon, 8 Sep 2014 18:33:13 +0200
Subject: [PATCH v8 00/18] 8250-core based serial driver for OMAP + DMA
In-Reply-To: <20140908151501.GA22584@linutronix.de>
References: <1409943773-7874-1-git-send-email-bigeasy@linutronix.de>
 <20140908144616.GA22315@ci00147.xsens-tech.local>
 <20140908151501.GA22584@linutronix.de>
Message-ID: <20140908163313.GA25724@linutronix.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

* Sebastian Andrzej Siewior | 2014-09-08 17:15:01 [+0200]:

>* Frans Klaver | 2014-09-08 16:46:18 [+0200]:
>
>>- ncurses based applications (vi, less) don't play nice for me on the
>>  console with this series. less doesn't show me anything. vi doesn't
>>  return to console properly.
>
>Can you give a test case 

Okay. less. My am335x-evm freezes after a while for no obvious reason.
The data that hits the RX fifo is still received but the TX won't do
anything. The DMA request is pending, the FIFO level is @64 bytes and
the UART doesn't make any progress.
On beagle-board I see what you described: less on a file and nothing
happens.
Disabling DMA seems to help fix the problem omap3. Nothing changes for
am335x.

Sebastian