Date: Thu, 16 Nov 2000 17:26:13 -0800 (PST)
From: Andre Hedrick <andre@linux-ide.org>
To: Anton Altaparmakov <aia21@cam.ac.uk>
cc: linux-kernel@vger.kernel.org
Subject: Re: sorted - was: How to add a drive to DMA black list?
In-Reply-To: <5.0.0.25.2.20001117011804.00a5eb50@pop.cus.cam.ac.uk>
Message-ID: <Pine.LNX.4.10.10011161725300.6910-100000@master.linux-ide.org>
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Sender: linux-kernel-owner@vger.kernel.org


Then I need to fix that to prevent the bypass that should not happen.

On Fri, 17 Nov 2000, Anton Altaparmakov wrote:

> The drive was being added to the black lists fine it's just that I had PIIX 
> tuning enabled which caused the good/bad dma tables check to be bypassed 
> completely. - So disabling PIIX tuning made my PC boot fine.
> 
> Regards,
> 
> Anton
> 
> At 00:13 17/11/2000, Anton Altaparmakov wrote:
> >Hello all,
> >
> >I have an ide hard drive that misbehaves when the option "enable DMA at 
> >boot time" (2.4.x kernel) is selected (this is on a on board ide 
> >controller). But on the other hand I have a Promise Ultra-ATA-100 
> >controller with an IBM ATA-100 drive that, according to the menuconfig 
> >information and the information at the top of the driver requires the 
> >"enable DMA at boot time" feature to be selected.
> >
> >I tried adding the string that is output for the bad drive by hdparm -i 
> >into drivers/ide/ide-dma.c::drive_blacklist and 
> >drivers/ide/ide-dma.c::bad_dma_drives but the kernel still says that it is 
> >using DMA and the kernel hangs after displaying:
> >
> >PIIX: chipset revision 2
> >PIIX: not 100% native mode: will probe irqs later
> >[snip]
> >PDC20267: IDE controller on PCI bus 00 dev 98
> >PDC20267: chipset revision 2
> >PDC20267: not 100% native mode: will probe irqs later
> >PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
> >[snip]
> >hdc: Conner Peripherals 1275MB - CFS1275A, ATA DISK drive
> >hde: IBM-DTLA-307045, ATA DISK drive
> >[snip]
> >hdc: 2496876 sectors (1278 MB) w/64KiB Cache, CHS=2477/16/63, DMA
> >hde: 90069840 sectors (46116 MB) w/1916KiB Cache, CHS=89355/16/63. UDMA(100)
> >Partition check:
> >  hda: hda1 hda2 < hda5 >
> >  hdc:hdc: timout waiting for DMA
> >ide_dmaproc: chipset supported ide_dma_timeout func only: 14
> >hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
> >_
> >Dead.
> >
> >What should I do? Thanks in advance,
> >
> >Anton
> >
> >--
> >      "Education is what remains after one has forgotten everything he 
> > learned in school." - Albert Einstein
> >--
> >Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / 
> >+44-(0)7712-632205(mobile)
> >Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
> >Cambridge CB2 3BU    ICQ: 8561279
> >United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/
> >
> >-
> >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> >the body of a message to majordomo@vger.kernel.org
> >Please read the FAQ at http://www.tux.org/lkml/
> 
> -- 
>       "Education is what remains after one has forgotten everything he 
> learned in school." - Albert Einstein
> -- 
> Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile)
> Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
> Cambridge CB2 3BU    ICQ: 8561279
> United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> Please read the FAQ at http://www.tux.org/lkml/
> 

Andre Hedrick
CTO Timpanogas Research Group
EVP Linux Development, TRG
Linux ATA Development

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