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SubjectRe: PCI-Scan Hangup ...
Date
On Thursday 19 of February 2004 14:35, Kianusch Sayah Karadji wrote:
> Hi!

Hi,

> There I have a Soekris bord with some weird PCI Handup while booting
> Linux during PCI-Scan .
>
> # lspci
>
> 00:00.0 Host bridge: Cyrix Corporation PCI Master
> 00:12.0 ISA bridge: National Semiconductor Corporation: Unknown device 0510
> 00:12.1 Bridge: National Semiconductor Corporation: Unknown device 0511
> 00:12.2 IDE interface: National Semiconductor Corporation SCx200 IDE (rev
> 01) 00:12.5 Bridge: National Semiconductor Corporation: Unknown device 0515
> 00:13.0 USB Controller: Compaq Computer Corporation ZFMicro Chipset USB
> (rev 08)
>
> There was a patch on 2.4.x which worked fine.
>
> Now I tried to patch Kernel 2.6.x - well I'm no programmer
> - I had no idea where to put it ... so I started putting some debug
> messages into some files ... and suddenly including a printk(".") into
> drivers/pci/probe.c fixed the whole PCI-Hangup ??? - That was not what the
> 2.4.x Patch did.
>
> Hmmm ...
>
> I've no idea why that printk fixes the Problem nor if it's a good idea to
> have that printk there ...

printk() adds some delay -> this delay fixes your problem, but I dunno why.

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