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Date:      Thu, 22 Jul 1999 13:48:20 +0200
From:      Thierry Herbelot <thierry.herbelot@alcatel.fr>
To:        Azman Salleh <azmansl@orenda.com.my>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: DMA on Ide_pci does not work.
Message-ID:  <37970504.94AFDC88@alcatel.fr>
References:  <000001bed436$1b89f0e0$0601010a@a>

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I use 0xa0ff for my flags on a config similar to yours (and it works).

	TfH

Azman Salleh wrote:
> 
> After compiling todays 3.2-STABLE, my new kernel cannot boot. It
> seems that the pci_ide fail on DMA mode. It works after changing
> to PIO mode. A quick compare on the source tree shows that a new
> ide_pci code was check in and some changes on the DMA part.
> 
> The error messages is:
> ---wd0: DMA failure, DMA status 5<active>----
> 
> My Kernel Configuration. I tried both flags on the controller
> also flags on the disk and get the same result.
> ----
> ##controller     wdc0    at isa? port "IO_WD1" bio irq 14 flags
> 0xb0ffb0ff
> controller      wdc0    at isa? port "IO_WD1" bio irq 14
> disk            wd0     at wdc0 drive 0 flags 0xb0ff
> 
> ---Shortened DMESG---------
> FreeBSD 3.2-STABLE #4: Thu Jul 22 17:27:07 MYT 1999
> FreeBSD/SMP: Multiprocessor motherboard
> Probing for devices on PCI bus 0:
> chip0: <Intel 82443GX host to PCI bridge> rev 0x00 on pci0.0.0
> chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.18.0
> ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on
> pci0.18.1
> wdc0 at 0x1f0-0x1f7 irq 14 on isa
> wdc0: unit 0 (wd0): <ST34310A>, LBA, DMA, 32-bit, multi-block-16
> wd0: 4111MB (8420832 sectors), 524 cyls, 255 heads, 63 S/T, 512
> B/S
> .
> .
> hanging root device to wd0s1a
> wd0: DMA failure, DMA status 5<active>
> wd0: DMA failure, DMA status 5<active>
> 
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