From: Jeff Garzik <jgarzik@pobox.com>
To: "Petter Sundlöf" <petter.sundlof@findus.dhs.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Cannot enable DMA on SATA drive (SCSI-libsata, VIA SATA)
Date: Fri, 27 Aug 2004 12:32:03 -0400 [thread overview]
Message-ID: <412F6203.9020701@pobox.com> (raw)
In-Reply-To: <412F5D50.7000807@findus.dhs.org>
Petter Sundlöf wrote:
> Using 2.6.8.1. DMA works fine on /dev/hda (PATA, CD burner).
>
> When I try to enable it for my SATA drive (which is performing horribly
> bad -- 80-90% CPU load on an AMD64 3200+ during copy of large files) I
> get this error:
> sata_via(0000:00:0f.0): routed to hard irq line 10
> ata1: SATA max UDMA/133 cmd 0xE400 ctl 0xE002 bmdma 0xD000 irq 20
> ata2: SATA max UDMA/133 cmd 0xD800 ctl 0xD402 bmdma 0xD008 irq 20
> ata1: dev 0 cfg 49:2f00 82:7c6b 83:7f09 84:4003 85:7c69 86:3e01 87:4003
> 88:407f
> ata1: dev 0 ATA, max UDMA/133, 398297088 sectors: lba48
> ata1: dev 0 configured for UDMA/133
DMA is always enabled.
Jeff
next prev parent reply other threads:[~2004-08-27 16:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-27 16:12 Cannot enable DMA on SATA drive (SCSI-libsata, VIA SATA) Petter Sundlöf
2004-08-27 16:32 ` Jeff Garzik [this message]
2004-08-27 23:45 ` Petr Sebor
2004-08-29 13:05 ` Alan Cox
[not found] <7076215DFAA4574099E5CD59FE42226204F6C364@pcssrv42.pcs.pc.ome.toshiba.co.jp>
2004-08-30 6:44 ` Petr Sebor
-- strict thread matches above, loose matches on Subject: below --
2004-08-31 5:58 Tomita, Haruo
2004-08-31 6:06 ` Jeff Garzik
2004-09-01 2:57 Tomita, Haruo
[not found] <4136E7EF00073144@mail-3.tiscali.it>
2004-10-06 0:30 ` Gianluca Cecchi
2004-10-06 0:54 ` Jeff Garzik
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