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SubjectRe: Bug with PCI initialization in pre2 on a dual P100
On Thu, 23 Mar 2000, John Gruenenfelder wrote:

> I have a dual Pentium 100 machine which uses (I recently found out) a Fugutech
> motherboard. Apparently this is not the best of boards. It uses Award BIOS
> v4.50G.
>
> I used to use the < 2.3.20 kernels without incident until the HD died. After
> being down a while, the machine is back with a Promise UDMA/66 card
> (PDC20262) and a new HD. Unfortunately, now the 2.3.xx kernels no longer
> work. During boot I get:
>
> PCI: PCI BIOS revision 2.00 entry at 0xfb690
> PCI: Using configuration type 2
> PCI: Probing PCI hardware
> PCI: Cannot allocate resource region 1 of device 00:03.0
> PCI: Cannot allocate resource region 3 of device 00:03.0
> PCI: Failed to allocate resource 1 for Promise Technology, Inc. 20262
> PCI: Failed to allocate resource 3 for Promise Technology, Inc. 20262
>
> and a little later:
>
> PDC20262: IDE controller on PCI bus 00 dev 18
> PDC20262: not 100% native mode: will probe irqs later
> PDC20262: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode
> PDC20262: IO baseregs (BIOS) are reported as MEM, report to <andre@suse.com>
> PDC20262: inconsistent baseregs (BIOS) for port 0, skipping
> PDC20262: IO baseregs (BIOS) are reported as MEM, report to <andre@suse.com>
> PDC20262: inconsistent baseregs (BIOS) for port 1, skipping
> PDC20262: neither IDE port enabled (BIOS)
>
>
> And then it can't mount root so it hangs (I copied the above by hand). I
> don't believe this is a problem with the Promise card. If I use kernel 2.2.14
> w/IDE patches I get:
>
> PCI: PCI BIOS revision 2.00 entry at 0xfb690
> PCI: Using configuration type 2
> PCI: Probing PCI hardware
> PCI: Assigning I/O space 5800-5803 to device 00:18
> PCI: Assigning I/O space 5804-5807 to device 00:18
>
> and a little later:
>
> PDC20262: IDE controller on PCI bus 00 dev 18
> PDC20262: not 100% native mode: will probe irqs later
> PDC20262: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode
> ide0: BM-DMA at 0x6200-0x6207, BIOS settings: hda:pio, hdb:DMA
> ide1: BM-DMA at 0x6208-0x620f, BIOS settings: hdc:pio, hdd:pio

First I want some Project Time over and above what the Time Committee will
give (former astronomer) ;-).

However, Martin, what changed in the auto-assignment of IO-Space that
does not get properly setup by the mainboard BIOS?

Andre Hedrick
The Linux ATA/IDE guy




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