From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
To: David R <david@industrialstrengthsolutions.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: DMA broken in mainline 2.6.13.2 _AND_ opensuse vendor 2.6.13-15
Date: Thu, 22 Sep 2005 09:25:46 -0400 [thread overview]
Message-ID: <20050922132546.GK28578@csclub.uwaterloo.ca> (raw)
In-Reply-To: <433216C2.4020707@industrialstrengthsolutions.com>
On Wed, Sep 21, 2005 at 10:28:18PM -0400, David R wrote:
> DMA is broken in 2.6.13.2 and opensuse 2.6.13-15, for my cdrom/dvd
> burner.
>
> My chipset is:
>
> 00:0f.1 IDE interface: VIA Technologies, Inc.
> VT82C586A/B/VT82C686/A/B/VT823x/A/C/VT8235 PIPC Bus Master IDE (rev 06)
>
> I have also heard ICH5 has this problem as well.
>
> I can tell you that hdparm -iI /dev/hdb reports the drive in udma4 mode.
>
> This drive is a: LITE-ON DVDRW SOHW-1693S, FwRev=KS09 However I think
> that maybe irrelevant.
>
> On .13 I get this at the end of dmesg:
>
> hdb: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
> hdb: drive_cmd: error=0x04 { AbortedCommand }
> ide: failed opcode was: 0xec
> hdb: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
> hdb: drive_cmd: error=0x04 { AbortedCommand }
> ide: failed opcode was: 0xec
>
> On .12 I get this but not on .13:
>
> VP_IDE: VIA vt8237 (rev 00) IDE UDMA133 controller on pci0000:00:0f.1
> ide0: BM-DMA at 0xa000-0xa007, BIOS settings: hda:pio, hdb:DMA
> ide1: BM-DMA at 0xa008-0xa00f, BIOS settings: hdc:pio, hdd:pio
What is on hda?
If nothing, fix your system. You should NOT have a slave without a
master on an ide bus.
Probably won't fix things, but sometimes it does fix things.
Len Sorensen
next prev parent reply other threads:[~2005-09-22 13:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-22 2:28 DMA broken in mainline 2.6.13.2 _AND_ opensuse vendor 2.6.13-15 David R
2005-09-22 13:25 ` Lennart Sorensen [this message]
2005-09-22 14:22 ` Alan Cox
2005-09-22 15:19 ` DMA broken in mainline 2.6.13.2 _AND_ opensuse vendor 2.6.13-15 - oopsers David R
2005-09-22 15:47 ` Randy.Dunlap
2005-09-22 16:24 ` David R
2005-09-22 15:22 ` DMA broken in mainline 2.6.13.2 _AND_ opensuse vendor 2.6.13-15 David R
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