With a Gigabyte GA-MA69VM-S2 690V motherboard, it stalls in
qurk_usb_early_handoff unless pci=nocrs is used:

[  299.177004] calling  pci_apply_final_quirks+0x0/0x11e @ 1
[  299.177004] pci 0000:00:00.0: pci_apply_final_quirks
[  299.177004] pci 0000:00:00.0: calling quirk_cardbus_legacy+0x0/0x21
[  299.177004] pci 0000:00:00.0: calling quirk_usb_early_handoff+0x0/0x5dd
[  299.177004] pci 0000:00:00.0: calling pci_fixup_video+0x0/0x9c
[  299.177004] pci 0000:00:01.0: pci_apply_final_quirks
[  299.177004] pci 0000:00:01.0: calling quirk_cardbus_legacy+0x0/0x21
[  299.177004] pci 0000:00:01.0: calling quirk_usb_early_handoff+0x0/0x5dd
[  299.177004] pci 0000:00:01.0: calling pci_fixup_video+0x0/0x9c
[  299.177004] pci 0000:00:12.0: pci_apply_final_quirks
[  299.177004] pci 0000:00:12.0: calling quirk_cardbus_legacy+0x0/0x21
[  299.177004] pci 0000:00:12.0: calling quirk_usb_early_handoff+0x0/0x5dd
[  299.177004] pci 0000:00:12.0: calling pci_fixup_video+0x0/0x9c
[  299.177004] pci 0000:00:13.0: pci_apply_final_quirks
[  299.177004] pci 0000:00:13.0: calling quirk_cardbus_legacy+0x0/0x21
[  299.177004] pci 0000:00:13.0: calling quirk_usb_early_handoff+0x0/0x5dd

Full dmesg with/without pci=nocrs attached.

-- 
Simon Arlott