我注意到最近在/var/log/messages
我们的一台服务器上出现了很多错误(如下)。但是,与syslog中的解码条目相比,mce客户端似乎不太确定错误源。是否有某种键可以用来解释MCE输出?
Nov 12 04:19:19 areion kernel: [14698753.176035] Machine check events logged
Nov 12 04:19:19 areion mcelog: HARDWARE ERROR. This is *NOT* a software problem!
Nov 12 04:19:19 areion mcelog: Please contact your hardware vendor
Nov 12 04:19:19 areion mcelog: MCE 0
Nov 12 04:19:19 areion mcelog: CPU 0 BANK 8
Nov 12 04:19:19 areion mcelog: MISC 640738dd0009159c ADDR 96236c6c0
Nov 12 04:19:19 areion mcelog: TIME 1352711959 Mon Nov 12 04:19:19 2012
Nov 12 04:19:19 areion mcelog: MCG status:
Nov 12 04:19:19 areion mcelog: MCi status:
Nov 12 04:19:19 areion mcelog: MCi_MISC register valid
Nov 12 04:19:19 areion mcelog: MCi_ADDR register valid
Nov 12 04:19:19 areion mcelog: MCA: MEMORY CONTROLLER RD_CHANNELunspecified_ERR
Nov 12 04:19:19 areion mcelog: Transaction: Memory read error
Nov 12 04:19:19 areion mcelog: STATUS 8c0000400001009f MCGSTATUS 0
Nov 12 04:19:19 areion mcelog: MCGCAP 1c09 APICID 20 SOCKETID 1
Nov 12 04:19:19 areion mcelog: CPUID Vendor Intel Family 6 Model 44
所有错误似乎都与相同的存储库有关:
areion:~# awk -F'mcelog:' '/mcelog:.*BANK/{ print $2; }' < /var/log/messages |uniq
CPU 0 BANK 8
我正在运行mcelog守护程序,当我检查错误信息时,它似乎不知道错误从何而来。只有它们与之关联CPU0
(此框中只有一个CPU):
Memory errors
SOCKET 1 CHANNEL any DIMM any
corrected memory errors:
77 total
77 in 24h
uncorrected memory errors:
0 total
0 in 24h
Per page corrected memory statistics:
359ffc000: total 2 2 in 24h online
3b93cc000: total 2 2 in 24h online
3ce45c000: total 2 2 in 24h online
96236c000: total 20 20 in 24h online triggered
96545c000: total 9 9 in 24h online
96a82c000: total 9 9 in 24h online
96a8ec000: total 1 1 in 24h online
96fb6c000: total 15 15 in 24h online triggered
9c2edc000: total 15 15 in 24h online triggered
9c5eac000: total 1 1 in 24h online
9c6a1c000: total 1 1 in 24h online
我如何解释这些信息还不清楚。一方面,mce客户端不指示通道或DIMM,但是解码后的消息表明DIMM 8上发生了错误。dmesg
似乎表明只记录了42条消息:
[14698753.176035] Machine check events logged
[14698753.629174] Machine check events logged
[14698815.338595] __ratelimit: 38 callbacks suppressed
[14698815.338628] Machine check events logged
[14698816.020797] Machine check events logged
我似乎收到了各种信息,这使我想知道根据来自各种来源的信息所做出的假设。
其他信息:
areion:~# grep 'model name' /proc/cpuinfo |uniq
model name : Intel(R) Xeon(R) CPU X5670 @ 2.93GHz
areion:~# apt-cache policy mcelog |grep Installed
Installed: 1.0~pre3-3
areion:~# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 6.0.6 (squeeze)
Release: 6.0.6
Codename: squeeze