Hello,
  I have just wiped and loaded a system with 2008.11.  It was running 2008.05, 
and prior to that Windows Vista 64 Home Premium (on a driver no longer in the 
system).

Since installing 2008.11 I have noticed the following messages at the tail end 
of /var/adm/messages after the system boots.

I've done some digging but come up pretty empty on what this means....

Dec  3 20:34:42 liberty npe: [ID 236367 kern.info] PCI Express-device: 
pci105b,d06 at a,1, ehci0
Dec  3 20:34:42 liberty genunix: [ID 936769 kern.info] ehci0 is /pci at 
0,0/pci105b,d06 at a,1
Dec  3 20:34:42 liberty unix: [ID 954099 kern.info] NOTICE: IRQ20 is being 
shared by drivers with different interrupt levels.
Dec  3 20:34:42 liberty This may result in reduced system performance.
Dec  3 20:34:42 liberty npe: [ID 236367 kern.info] PCI Express-device: 
pci105b,d06 at a, ohci0
Dec  3 20:34:42 liberty genunix: [ID 936769 kern.info] ohci0 is /pci at 
0,0/pci105b,d06 at a
...
Dec  3 20:34:49 liberty pseudo: [ID 129642 kern.info] pseudo-device: ucode0
Dec  3 20:34:49 liberty genunix: [ID 936769 kern.info] ucode0 is /pseudo/ucode 
at 0
Dec  3 20:34:50 liberty unix: [ID 954099 kern.info] NOTICE: IRQ21 is being 
shared by drivers with different interrupt levels.
Dec  3 20:34:50 liberty This may result in reduced system performance.
Dec  3 20:34:50 liberty mac: [ID 469746 kern.info] NOTICE: nge0 registered
Dec  3 20:34:50 liberty nge: [ID 801725 kern.info] NOTICE: nge1: Using FIXED 
interrupt type
Dec  3 20:34:51 liberty unix: [ID 954099 kern.info] NOTICE: IRQ22 is being 
shared by drivers with different interrupt levels.
Dec  3 20:34:51 liberty This may result in reduced system performance.
Dec  3 20:34:51 liberty mac: [ID 469746 kern.info] NOTICE: nge1 registered
Dec  3 20:34:54 liberty mac: [ID 435574 kern.info] NOTICE: nge0 link up, 1000 
Mbps, full duplex
Dec  3 20:34:55 liberty pcplusmp: [ID 444295 kern.info] pcplusmp: ide (ata) 
instance #1 vector 0xf ioapic 0x2 intin 0xf is bound to cpu 1
...
Dec  3 20:35:13 liberty mac: [ID 736570 kern.info] NOTICE: nge1 unregistered

I'm not terribly concerned about performance, but I would like the system to be 
functional...  It has 5 SATA disks in a hot swap backplane and it's intended to 
serve a website or two (amp stack stuff) and also as a file server (cifs or 
perhaps just ftp).  I can't very well do either if this IRQ issue will cause 
reliability problems.

I have not experience any warnings or performance issues with the other OS 
installs on this same hardware, save the disks it's been a functional system 
for over a year.  I have the BIOS configured to automatically manage the IRQ 
assignments.

Can anyone explain what these IRQ messages mean and what impact they might have 
for me?

Thanks.
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