Under kernel 2.6.10-rc1-bk18 (suspend worked OK in 2.6.9) on an IBM 
ThinkPad T41, going into an APM suspend works fine, but resuming seems 
to freeze the whole system. The following messages are printed to the 
console, but nothing responds after that - keyboard, network, etc.

PCI: Found IRQ 11 for device 0000:00:1f.1
PCI: Sharing IRQ 11 with 0000:00:1d.2
PCI: Sharing IRQ 11 with 0000:02:02.2
PCI: Found IRQ 11 for device 0000:00:1f.5
PCI: Sharing IRQ 11 with 0000:00:1f.3
PCI: Sharing IRQ 11 with 0000:00:1f.6
PCI: Sharing IRQ 11 with 0000:02:00.1
PCI: Enabling device 0000:00:1f.6 (0000 -> 0001)
PCI: Found IRQ 11 for device 0000:00:1f.6
PCI: Sharing IRQ 11 with 0000:00:1f.3
PCI: Sharing IRQ 11 with 0000:00:1f.5
PCI: Sharing IRQ 11 with 0000:02:00.1

I get the feeling those messages don't have anything to do with the 
freeze, Since device 02:00.1 is just a CardBus controller. A very 
similar freeze happens when resuming from an ACPI suspend under the same 
kernel as well as 2.6.10-rc1-mm3, though with slightly different 
messages. Attached is the output from lspci -vvv, and my kernel .config.