Date: Thu, 20 Feb 1997 19:37:20 +0100 From: se@freebsd.org (Stefan Esser) To: max@rnd.runnet.ru (Maxim A. Bolotin) Cc: se@freebsd.org (Stefan Esser), hackers@freebsd.org Subject: Re: Acer ALTOS 7000 instalation problem. Message-ID: <19970220193720.BV28868@x14.mi.uni-koeln.de> In-Reply-To: <Pine.BSF.3.95q.970220192849.337A-100000@altos.rnd.runnet.ru>; from Maxim A. Bolotin on Feb 20, 1997 19:30:37 %2B0300 References: <19970218205749.IK34225@x14.mi.uni-koeln.de> <Pine.BSF.3.95q.970220192849.337A-100000@altos.rnd.runnet.ru>
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On Feb 20, max@rnd.runnet.ru (Maxim A. Bolotin) wrote: > OK, Here's what I have with controller pci0 > > Probing for devices on the EISA bus > ahc0: <Adaptec aic7770 SCSI host adapter> at 0x9c00-0x9cff irq 11 > ahc0: on eisa0 slot 9 > pcibus_setup(1): mode 1 addr port (0x0cf8) is 0x81000800 > pcibus_setup(2): mode 2 enable port (0x0cf8) is 0x00 > pcibus_setup(2a): mode2res=0x0e (0x0e) > pcibus_setup(2a): now trying mechanism 2 > pcibus_check: device 0 1 2 3 is there (id=00000021) > Probing for devices on PCI bus 0: > configuration mode 2 allows 16 devices. > vga0 <Display device> rev 0 int _ irq ?? on pci0:3 > vga1 <Display device> rev 0 int _ irq ?? on pci0:7 > vga? <Display device> mirrored on pci0:11 > vga? <Display device> mirrored on pci0:15 > Probing for devices on the ISA bus: Ok, I see ... Thanks for sending this message log! The problem is, that EISA and PCI use overlapping port regions, and for the probe code, it appears as if there really was a PCI device in slot 3. The value read is valid, and while no device with that ID exists, the code can't possibly know. I've got an idea for another test, which would find that there isn't really a PCI bus in your system. But that test will need to write into EISA address space ports, and while I can restore the values previously read, I can't be sure that the device has not been confused by the test ... As soon as I have a patch ready, you'll receive it for testing. Regards, STefan
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