question about dmesg output - acpi0

[D. Goss]

I'm trying to figure out my dmesg - I'm getting this in part:

acpi0: <IBM SERONYXP> on motherboard
acpi0: Power Button (fixed)
acpi0: reservation of 460, 2 (4) failed
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x488-0x48b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <display, VGA> at device 5.0 (no driver attached)
atapci0: <ServerWorks CSB5 UDMA100 controller> port 0x700-0x70f, 
0x376,0x170-0x17
7,0x3f6,0x1f0-0x1f7 at device 15.1 on pci0

can someone shed any light on this part: acpi0: reservation of 460, 2  
(4) failed  ?

This is an IBM xSeries 345.  I have read the acpi man and understand  
some generalities but am wondering if I could be building a different  
kernel and avoid the error message.  This is on 5.3 and with GENERIC  
w/SMP kernel.

Thanks in advance -
d.