Date: Fri, 25 May 2012 16:09:44 +0800
From: Richard Zhao <richard.zhao@freescale.com>
To: Shawn Guo <shawn.guo@linaro.org>
CC: <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>,
        <vinod.koul@intel.com>, <dan.j.williams@intel.com>,
        <linuxzsc@gmail.com>, <shawn.guo@gmail.com>, <kernel@pengutronix.de>
Subject: Re: [PATCH 1/1] dma: imx-sdma: buf_tail should be initialize in
 prepare function
Message-ID: <20120525080943.GA18733@b20223-02.ap.freescale.net>
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 <20120524032026.GB17621@S2101-09.ap.freescale.net>
 <20120524032659.GA19682@b20223-02.ap.freescale.net>
 <20120524033356.GC17621@S2101-09.ap.freescale.net>
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On Thu, May 24, 2012 at 11:33:58AM +0800, Shawn Guo wrote:
> On Thu, May 24, 2012 at 11:27:00AM +0800, Richard Zhao wrote:
> > > root@linaro-developer:~# aplay audio8k16S.wav
> > > Playing WAVE 'audio8k16S.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stere
> > > o
> > > ^Z
> > > [1]+  Stopped                 aplay audio8k16S.wav
> > > root@linaro-developer:~# fg
> > > aplay audio8k16S.wav
> > > underrun!!! (at least 2034.382 ms long)
> > Does the audio playback recover? Without the patch, sometimes the
> > playback will have distortion and play too fast.
> > 
> No, it does not recover.
Maybe it's not the same issue. It do recover on imx6q sabrelite board.
And from source code, it do be a bug.

Thanks
Richard
> 
> -- 
> Regards,
> Shawn
> 

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