From: Ed Sweetman <ed.sweetman@wmich.edu>
To: Kristian <kristian.peters@korseby.net>
Cc: akpm@zip.com.au, linux-kernel@vger.kernel.org
Subject: Re: [CFT] Bus mastering support for IDE CDROM audio
Date: 27 Jan 2002 14:54:21 -0500 [thread overview]
Message-ID: <1012161271.22707.50.camel@psuedomode> (raw)
In-Reply-To: <20020127111917.3c019701.kristian.peters@korseby.net>
In-Reply-To: <3C5119E0.6E5C45B6@zip.com.au> <000701c1a5d5$812ef580$6caaa8c0@kevin> <3C53711B.F8D89811@zip.com.au> <3C53A116.81432588@zip.com.au> <20020127101131.0f71e978.kristian.peters@korseby.net> <20020127111917.3c019701.kristian.peters@korseby.net>
You might want to try sending your cdroms into sleep when dma mode wont
work anymore. That usually fixes things for me. hdparm -Y ....the
kernel should wake them up immediately and things should work again.
On Sun, 2002-01-27 at 05:19, Kristian wrote:
> Hello again.
>
> Ok. Sorry. My fault. The second patch produces the same throughput... I didn't realized that the kernel disabled DMA during rebooting. My drives only went to DMA again after a cold boot. Don't know what's going on here. But after a normal reboot, my drives are in PIO only and don't support DMA.
>
> cdparanoia on /dev/scd0 now gives the same result as with the first patch.
> real 1m8.055s
> user 0m6.740s
> sys 0m2.850s
>
> *Kristian
>
> :... [snd.science] ...:
> ::
> :: http://www.korseby.net
> :: http://gsmp.sf.net
> :.........................:: ~/$ kristian@korseby.net :
> -
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next prev parent reply other threads:[~2002-01-27 19:54 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-25 8:40 [CFT] Bus mastering support for IDE CDROM audio Andrew Morton
2002-01-25 19:21 ` Kevin P. Fleming
2002-01-27 2:13 ` Dan Chen
2002-01-27 3:16 ` Andrew Morton
2002-01-27 6:41 ` Andrew Morton
2002-01-27 9:11 ` Kristian
2002-01-27 10:19 ` Kristian
2002-01-27 19:54 ` Ed Sweetman [this message]
2002-01-28 8:29 ` Andrew Morton
2002-01-28 9:51 ` benh
2002-01-28 9:51 ` Andrew Morton
2002-01-28 15:50 ` Ed Sweetman
2002-01-28 17:13 ` Kristian
2002-01-28 13:51 ` Kristian
2002-01-28 19:21 ` Kevin P. Fleming
2002-01-26 8:43 ` Dan Chen
2002-01-26 12:03 ` Kristian
2002-01-27 21:21 ` Robert Love
2002-01-27 21:25 ` Jens Axboe
2002-01-27 21:36 ` Andrew Morton
2002-01-27 21:40 ` Robert Love
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