I was just browsing through the output of dmesg and saw the following: PCI: Found IRQ 5 for device 00:0a.0 Redundant entry in serial pci_table. Please send the output of lspci -vv, this message (4793,4104,4793,162) and the manufacturer and name of serial board or modem board to serial-pci-info at lists.sourceforge.net. I rooted around a bit on the web and couldn't find any details about this problem. Looked at serial.c and didn't get much more understanding. It's hard for me even to tell whether this is a problem or not. Is there something I ought to do about this? And if so, what? Thanks! R