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Date: Fri, 06 Jul 2001 11:39:33 -0700
From: "Adam D. Scislowicz" <adams@fourelle.com>
Organization: Fourelle Systems, Inc.
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To: linux-kernel@vger.kernel.org
CC: adams@fourelle.com
Subject: IDE0/Slave Detection Fails in 2.4.x(2.4.4, 2.4.5, and 2.4.5-ac18 tested)
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I am having a problem where the 2.4.x(2.4.4, and 2.4.5, and 2.4.5-ac18)
kernel does not detect the IDE0/primary slave device. If I put a third
drive in the system as IDE1/secondary master then that is detected.
However
the IDE0/primary slave is never detected.

Using the 2.2.19 kernel the IDE0/primary slave device IS detected
properly. This
can be seen below in the 2.2.19 Kernel Init Messages.

Below is some more detailed info.
 *Note: Please CC me in any replay as I am not subscribed to this
mailiing list ;)

 -Adam Scislowicz

[ My IDE Controller Info (2.2.19:/proc/pci) ]
  Bus  0, device   7, function  1:
    IDE interface: Intel 82371AB PIIX4 IDE (rev 1).
      Medium devsel.  Fast back-to-back capable.  Master Capable.
Latency=64.
      I/O at 0xffa0 [0xffa1].


[ The 2.2.19 Kernel Init Messages ]
PIIX4: IDE controller on PCI bus 00 dev 39
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:pio, hdb:DMA
    ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:pio
hda: TOSHIBA THNCF032MAA, ATA DISK drive
hdb: IBM-DARA-206000, ATA DISK drive
hdc: ST320420A, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: TOSHIBA THNCF032MAA, 31MB w/2kB Cache, CHS=496/4/32
hdb: IBM-DARA-206000, 5729MB w/418kB Cache, CHS=730/255/63, UDMA
hdc: ST320420A, 19458MB w/2048kB Cache, CHS=39535/16/63, UDMA


[ The 2.4.5-ac18 Kernel Init Messages ]
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
PIIX4: IDE controller on PCI bus 00 dev 39
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:pio, hdb:DMA
    ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:pio
hda: TOSHIBA THNCF032MAA, ATA DISK drive
hdc: ST320420A, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 63488 sectors (33 MB) w/2KiB Cache, CHS=496/4/32, DMA
hdc: 39851760 sectors (20404 MB) w/2048KiB Cache, CHS=39535/16/63,
UDMA(33)