Date: Wed, 14 Jul 2010 11:25:29 -0400 From: Andrew Heybey <ath@niksun.com> To: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: 8.1RC2 amd64 machine check question Message-ID: <6E83197B-9DD5-4C7E-846D-AD176C25464D@niksun.com>
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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 0=
x0000000000000000
Jul 13 20:30:17 spaten kernel: MCA: Vendor "AuthenticAMD", ID 0x100f43, API=
C 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 Phen=
om X2:
FreeBSD 8.1-RC2 #0: Tue Jun 29 20:21:55 UTC 2010
root@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 =3D "AuthenticAMD" Id =3D 0x100f43 Family =3D 10 Model =3D 4 S=
tepping =3D 3
Features=3D0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
Features2=3D0x802009<SSE3,MON,CX16,POPCNT>
AMD Features=3D0xee500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM,3DNow!+=
,3DNow!>
AMD Features2=3D0x37ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OS=
VW,IBS,SKINIT,WDT>
TSC: P-state invariant
real memory =3D 4294967296 (4096 MB)
avail memory =3D 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
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