8.1RC2 amd64 machine check question

[Andrew Heybey]

Got the following in /var/log/messages on my one-week-old amd64 box running 8.1RC2:

Jul 13 20:30:17 spaten kernel: MCA: Global Cap 0x0000000000000106, Status 0x0000000000000000
Jul 13 20:30:17 spaten kernel: MCA: Vendor "AuthenticAMD", ID 0x100f43, APIC ID 0
Jul 13 20:30:17 spaten kernel: MCA: CPU 0 COR GCACHE LG EVICT error
Jul 13 20:30:17 spaten kernel: MCA: Address 0x2a49464c

I read through sys/amd64/amd64/mca.c and it seems to be a correctable error on my L3 cache, but I am not 100% sure I am interpreting it correctly.

Motherboard is an ASUS M4A785TD-V EVO w/ 2x 2GB ECC RAM and and an AMD Phenom X2:

FreeBSD 8.1-RC2 #0: Tue Jun 29 20:21:55 UTC 2010
    root at mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Phenom(tm) II X2 550 Processor (3113.67-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0x100f43  Family = 10  Model = 4  Stepping = 3
  Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x802009<SSE3,MON,CX16,POPCNT>
  AMD Features=0xee500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM,3DNow!+,3DNow!>
  AMD Features2=0x37ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS,SKINIT,WDT>
  TSC: P-state invariant
real memory  = 4294967296 (4096 MB)
avail memory = 4112510976 (3921 MB)
ACPI APIC Table: <041510 APIC1115>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s)
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1

My questions are:

1. Did I interpret the message correctly (correctable error on my L3 cache)?

2. Is it anything to worry about?  Or is this just one of those things that happens but now it gets logged whereas before I was blissfully ignorant?

thanks,
andrew