Make "pci=nomsi" the default on 2.6.20 kernels?

[Chuck Ebbert]

It seems like more and more problems with PCI MSI are turning up
in the 2.6.20 kernel. Discussion upstream concluded that maybe
it should have been off by default in 2.6.20, so maybe we should
just do that in Fedora and make people who want it use "pci=msi"
to enable it? It's probably not going to be really stable until
2.6.22...