From: Robert Hancock <hancockr@shaw.ca>
To: "\"J.A. Magallón\"" <jamagallon@ono.com>
Cc: "Linux-Kernel, " <linux-kernel@vger.kernel.org>
Subject: Re: Again... DMA speed too slow
Date: Sun, 30 Mar 2008 18:59:13 -0600 [thread overview]
Message-ID: <47F03761.4090801@shaw.ca> (raw)
In-Reply-To: <fa.kS8AgwgGnOORqOO36Liq2hSrgfI@ifi.uio.no>
J.A. Magallón wrote:
> Hi all...
>
> I have tried to burn some data from the commandline with wodim (since time
> ago I just used beasero...), and I have noticed this (media is CD, not DVD):
>
> Vendor_info : 'HL-DT-ST'
> Identification : 'DVDRAM GSA-H10N '
> Revision : 'JL12'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
> Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
> Driver flags : MMC-3 SWABAUDIO BURNFREE
> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
> Speed set to 8467 KB/s
> wodim: DMA speed too slow (OK for 5x). Cannot write at speed 48x.
> Starting to write CD/DVD at speed 48.0 in real TAO mode for single session.
>
> I just can burn CDs at 5x ??
> But then the program tries to write at 48x.
> It the DMA message really true ?
No, UDMA33 should be more than fast enough. My guess is that wodim is
determining the DMA speed using some unreliable mechanism.
next parent reply other threads:[~2008-03-31 1:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.kS8AgwgGnOORqOO36Liq2hSrgfI@ifi.uio.no>
2008-03-31 0:59 ` Robert Hancock [this message]
2008-04-14 16:54 Again... DMA speed too slow Joerg Schilling
2008-04-14 16:56 ` Alan Cox
2008-04-14 17:19 ` Joerg Schilling
2008-04-14 17:29 ` Alan Cox
2008-04-14 17:44 ` Alan
2008-04-14 18:28 ` Joerg Schilling
2008-04-14 18:21 ` Joerg Schilling
-- strict thread matches above, loose matches on Subject: below --
2008-03-30 21:53 J.A. Magallón
2008-04-02 7:16 ` Andrew Morton
2008-04-13 2:23 ` Tejun Heo
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