Recently updated an old box to a new kernel, and the USB mouse stops working.
Well it sort of works, but stutters and is very unresponsive. This happens
now and again when the IRQ routing for my board gets broken.

Attached a dmesg from a bad 2.6.20-rc5, and a quick hack that gets everything
working again, and a diff between good and bad dmesg, and lspci.

I can test patches or send any other info needed.

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SUSE Labs, Novell Inc.