Re: 2.2.0-pre7ac2 PCI probing fails

Martin Mares (mj@ucw.cz)
Thu, 14 Jan 1999 23:02:34 +0100


Hello,

> As I have previously reported, probing the PCI bus with direct access
> enabled fails on a machine we have here. The problem appears to be a
> particular device that causes everything to hang when probed. This
> occurs in pci.c/pci_scan_bus() under the comment "non-destructively
> determine if device can be a master:". The second
> pcibios_read_config_byte() never returns, for some reason.
>
> The problem device looks like this from /proc/pci in 2.0.36:
>
> Bus 0, device 21, function 0:
> RAM memory: Unknown vendor Unknown device (rev 0).
> Vendor id=4978. Device id=84c5.
> Fast devsel. IRQ 19.
> I/O at 0x0.
> Non-prefetchable 32 bit memory at 0x90100.
>
> The vendor ID corresponds to "Axil Computer Inc.", who seems to be
> making SPARC hardware? I really don't know what the device is.
>
> This problem applies to all recent kernels.

Please send me all PCI-related boot messages when booting with direct
access and output of 'lspci -vvx'.

Have a nice fortnight

-- 
Martin `MJ' Mares   <mj@ucw.cz>   http://atrey.karlin.mff.cuni.cz/~mj/
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
"We all live in a yellow subroutine."

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