PCI oddness with Ali 1541 chipset

From: Erik Mouw (J.A.K.Mouw@ITS.TUDelft.NL)
Date: Mon Nov 06 2000 - 19:22:06 EST

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Hi,

I'm running 2.4.0-test10 on my desktop machine. The system works
perfectly well, but I get some strange PCI messages at boot time. Here
is part it:

  PCI: PCI BIOS revision 2.10 entry at 0xf0560, last bus=1
  PCI: Using configuration type 1
  PCI: Probing PCI hardware
  Unknown bridge resource 0: assuming transparent
  Unknown bridge resource 1: assuming transparent
  Unknown bridge resource 2: assuming transparent
  PCI: Using IRQ router ALI [10b9/1533] at 00:07.0

I don't know what kind of bridge resources these are. A little bit
furthur, the IDE controller gets detected:

  ALI15X3: IDE controller on PCI bus 00 dev 78
  PCI: No IRQ known for interrupt pin A of device 00:0f.0. Please try using pci=biosirq.
  ALI15X3: chipset revision 193

I tried "pci=biosirq", but that didn't make any difference. I don't
know if this is related with the unknown bridge resources earlier.

After booting, the IDE controller uses IRQ 14 and 15, but lscpi says
that the IDE controller has pin A routed to IRQ 0. What's going wrong
over here, or is this just normal behaviour?

Short description of the system: K6-II@333MHz, 160MB memory, Asus P5A
motherboard (Ali 1541 chipset), Debian GNU/Linux 2.2. I attached the
config file, the boot messages, and the output of "lspci -vvvx".

Erik

-- J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department of Electrical Engineering, Faculty of Information Technology and Systems, Delft University of Technology, PO BOX 5031, 2600 GA Delft, The Netherlands Phone: +31-15-2783635 Fax: +31-15-2781843 Email: J.A.K.Mouw@its.tudelft.nl WWW: http://www-ict.its.tudelft.nl/~erik/

text/plain attachment: config

text/plain attachment: dmesg.txt

text/plain attachment: lspci.txt

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Next message: Mark Cooke: "Re: ide-probe.c:400: `rtc_lock' undeclared and /lib/modules/..../build"
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Next in thread: Rene Blokland: "Re: PCI oddness with Ali 1541 chipset"
Reply: Rene Blokland: "Re: PCI oddness with Ali 1541 chipset"
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