On Tue, Apr 05, 2005 at 02:03:06AM +0200, Christian wrote:

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Sven Luther wrote:

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# This is a BitKeeper generated diff -Nru style patch.
#
# ChangeSet
#   2004/08/16 10:35:18-07:00 trini@kernel.crashing.org
#   ppc32: On PReP, use residual data for PCI dev -> IRQ, and use it.

I got through all the changesets one by one, and it is most definitively this
one. i unapply it and it works, i apply it and it breaks.

i can confirm this one.

the changesets are listed here:
http://linux.bkbits.net:8080/linux-2.6/patch@1.1803.125.6

...and because i had some troubles getting a GNU diff-style patch with
/usr/bin/bk, i made one against 2.6.11.6:

http://nerdbynature.de/bits/hal/2.6.11.6/1.1803.125.6.diff

more info and dmesg under:

http://nerdbynature.de/bits/hal/2.6.11.6/

to summarize: i don't know exactly which changes, but *some* changes had
to be made to arch/ppc/platforms/prep_pci.c to get the network card
working [1] again (network code kept locking up the machine). after this
issue was resolved, i too noticed the scsi errors [2] others were
complaing about.

The issue seems obvious, the patch adds some different way of setting the
irqs, based on the residual data, which fails to do what it should on the
powerstack, and thus the irqs are fully left uninitialized. 

Friendly,

Sven Luther