The latest -git tree panics at boot for me.  git-bisect traced the offending commit to:

368c73d4f689dae0807d0a2aa74c61fd2b9b075f is first bad commit
commit 368c73d4f689dae0807d0a2aa74c61fd2b9b075f
Author: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date:   Wed Oct 4 00:41:26 2006 +0100

    PCI: quirks: fix the festering mess that claims to handle IDE quirks

Hardware is a Dell Inspiron E1705 laptop running FC6 x86_64.

I've attached a netcconsole dump of the panic, as well as lspci output.

Is there any additional information I can provide?

Thanks,
Frank