From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Martin MOKREJŠ" <mmokrejs@ribosome.natur.cuni.cz>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.23.17 & 2.6.24.5 and maybe earlier: pata_marvell: need to disable DMA to get rid of '(ATA bus error)', 'ata7.00: status: { DRDY ERR }', 'ata7.00: error: { ICRC ABRT }'
Date: Thu, 1 May 2008 20:08:51 +0100 [thread overview]
Message-ID: <20080501200851.2e14d3b8@core> (raw)
In-Reply-To: <4819FDAF.7050005@ribosome.natur.cuni.cz>
> To get rid of the errors, I can use libata.dma=0 kernel
> command-line parameter. Unfortunately, this sets all libata
> devices to PIO4 mode. How can I set just this one? I tried
> 'libata.force=7.00:pio4' but it did not help.
libata.dma=3 will stop DMA being used for CF devices (except those that
decide to pretend to be ATA classes). This one comes up a lot as many CF
adapters are simply not adequate for UDMA.
> Where are the flags documented? linux/Documentation/ directory
> contains almost nothing about pata_marvell. :(
The flags are all common across drivers.
Alan
next prev parent reply other threads:[~2008-05-01 19:16 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-01 17:28 2.6.23.17 & 2.6.24.5 and maybe earlier: pata_marvell: need to disable DMA to get rid of '(ATA bus error)', 'ata7.00: status: { DRDY ERR }', 'ata7.00: error: { ICRC ABRT }' Martin MOKREJŠ
2008-05-01 19:08 ` Alan Cox [this message]
2008-05-01 21:24 ` Martin MOKREJŠ
2008-05-01 23:51 ` Jan Engelhardt
2008-05-02 9:57 ` Alan Cox
[not found] <fa.+9Q+WQnyiYTlpbXVIzn6aT2/gS0@ifi.uio.no>
[not found] ` <fa.fKUfeQYS9BFD60fOMormQ25ard4@ifi.uio.no>
[not found] ` <fa.QYXSW2xjSxf6xnmd0rQGJhHLnrc@ifi.uio.no>
[not found] ` <fa.qfeYSQtlsXzGvFvBQEdF9TFFpNg@ifi.uio.no>
2008-05-03 2:42 ` Robert Hancock
2008-05-06 12:44 ` Martin MOKREJŠ
2008-05-06 13:08 ` Alan Cox
2008-05-06 14:54 ` Martin MOKREJŠ
2008-05-06 15:04 ` Alan Cox
2008-05-06 16:24 ` Martin MOKREJŠ
2008-05-06 19:04 ` Alan Cox
2008-05-06 23:42 ` Martin MOKREJŠ
2008-05-07 7:25 ` Alan Cox
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