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SubjectIDE controller detection 2.4 +devfs
Hi all.

I like to rereport that the IDE Controllers get strange device-
node-number in Linux-2.4 (currently vanilla 2.4.16) at least using DevFS.

I reported (~a year ago) that when I disable the primary channel of the
on-board controller of the Asus-K7M (Irongate based) the second channel
will be host1 - no host0 can be found.

My today's issue is our K6-2 based server with an Gigabyte Ali-Aladin5
board. The on-board controller is host0 but the additional Promisse
TX2 Ultra100 will be host2 ??? no host1 there ... :

server1:~ # l /dev/ide/
total 0
drwxr-xr-x 1 root root 0 Jan 1 1970 .
drwxr-xr-x 1 root root 0 Jan 1 1970 ..
drwxr-xr-x 1 root root 0 Jan 1 1970 host0
drwxr-xr-x 1 root root 0 Jan 1 1970 host2

>From /var/log/boot.msg:
<4>ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
<4>PDC20268: IDE controller on PCI bus 00 dev 58
<6>PCI: Found IRQ 11 for device 00:0b.0
<4>PDC20268: chipset revision 2
<4>PDC20268: not 100%% native mode: will probe irqs later
<4>PDC20268: (U)DMA Burst Bit ENABLED Primary MASTER Mode Secondary MASTER Mode.
<4> ide2: BM-DMA at 0xa800-0xa807, BIOS settings: hde:pio, hdf:pio
<4> ide3: BM-DMA at 0xa808-0xa80f, BIOS settings: hdg:pio, hdh:pio
<4>ALI15X3: IDE controller on PCI bus 00 dev 78
<4>PCI: No IRQ known for interrupt pin A of device 00:0f.0. Please try using pci
=biosirq.
<4>ALI15X3: chipset revision 193
<4>ALI15X3: not 100%% native mode: will probe irqs later
<4> ide0: BM-DMA at 0xa400-0xa407, BIOS settings: hda:DMA, hdb:pio
<4> ide1: BM-DMA at 0xa408-0xa40f, BIOS settings: hdc:pio, hdd:pio
<4>hda: TOSHIBA MK6015MAP, ATA DISK drive
<4>ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
<4>hdc: IBM-DTLA-305040, ATA DISK drive
<4>hde: IBM-DTLA-305040, ATA DISK drive
<4>hdg: IBM-DTLA-305040, ATA DISK drive
<4>ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
<4>ide1 at 0x170-0x177,0x376 on irq 15

It is really odd to see the Linux kernel mangling this different on each
Workstation ...

k33p h4ck1n6
René

--
René Rebe (Registered Linux user: #127875 <http://counter.li.org>)

eMail: rene.rebe@gmx.net
rene@rocklinux.org

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