内存控制器错误信息[备忘]
参考日志错误信息:
[root@hh-yun-compute-130125 ~]# cat /var/log/messages | grep -i error Mar 1 04:58:05 hh-yun-compute-130125 kernel: sbridge: HANDLING MCE MEMORY ERROR Mar 1 04:58:06 hh-yun-compute-130125 kernel: EDAC MC1: CE row 2, channel 0, label "CPU_SrcID#1_Channel#2_DIMM#0": 1 Unknown error(s): memory scrubbing on FATAL area : cpu=6 Err=0008:00c2 (ch=2), addr = 0x16113a9000 => socket=1, Channel=2(mask=4), rank=0 Mar 1 10:27:08 hh-yun-compute-130125 kernel: sbridge: HANDLING MCE MEMORY ERROR Mar 1 10:27:09 hh-yun-compute-130125 kernel: EDAC MC1: CE row 2, channel 0, label "CPU_SrcID#1_Channel#2_DIMM#0": 1 Unknown error(s): memory scrubbing on FATAL area : cpu=6 Err=0008:00c2 (ch=2), addr = 0x15e1c49000 => socket=1, Channel=2(mask=4), rank=0 Mar 1 13:52:56 hh-yun-compute-130125 kernel: sbridge: HANDLING MCE MEMORY ERROR Mar 1 13:52:57 hh-yun-compute-130125 kernel: EDAC MC1: CE row 2, channel 0, label "CPU_SrcID#1_Channel#2_DIMM#0": 1 Unknown error(s): memory scrubbing on FATAL area : cpu=6 Err=0008:00c2 (ch=2), addr = 0x160e949000 => socket=1, Channel=2(mask=4), rank=0 Mar 2 04:16:56 hh-yun-compute-130125 kernel: sbridge: HANDLING MCE MEMORY ERROR Mar 2 04:16:56 hh-yun-compute-130125 kernel: sbridge: HANDLING MCE MEMORY ERROR Mar 2 04:16:57 hh-yun-compute-130125 kernel: EDAC MC1: CE row 2, channel 0, label "CPU_SrcID#1_Channel#2_DIMM#0": 1 Unknown error(s): memory scrubbing on FATAL area : cpu=6 Err=0008:00c2 (ch=2), addr = 0x1613a61000 => socket=1, Channel=2(mask=4), rank=0 Mar 2 04:16:57 hh-yun-compute-130125 kernel: EDAC MC1: CE row 2, channel 0, label "CPU_SrcID#1_Channel#2_DIMM#0": 1 Unknown error(s): memory scrubbing on FATAL area : cpu=6 Err=0008:00c2 (ch=2), addr = 0x1613a79000 => socket=1, Channel=2(mask=4), rank=0
参考信息2:
[root@hh-yun-compute-130125 ~]# cat /sys/devices/system/edac/mc/mc?/ce*count 0 0 8 0 [root@hh-yun-compute-130125 ~]# cat /sys/devices/system/edac/mc/mc1/ce_count 8
模块信息
[root@hh-yun-compute-130125 ~]# modinfo sb_edac filename: /lib/modules/2.6.32-504.3.3.el6.x86_64/kernel/drivers/edac/sb_edac.ko description: MC Driver for Intel Sandy Bridge and Ivy Bridge memory controllers - Ver: 1.1.0 author: Red Hat Inc. (http://www.redhat.com) author: Mauro Carvalho Chehab <[email protected]> license: GPL srcversion: 01CFEEBE911D55B6FE660BE alias: pci:v00008086d00002FA0sv*sd*bc*sc*i* alias: pci:v00008086d00000EA8sv*sd*bc*sc*i* alias: pci:v00008086d00003CA8sv*sd*bc*sc*i* depends: edac_core vermagic: 2.6.32-504.3.3.el6.x86_64 SMP mod_unload modversions parm: edac_op_state:EDAC Error Reporting state: 0=Poll,1=NMI (int) [root@hh-yun-compute-130125 ~]# modinfo edac_core filename: /lib/modules/2.6.32-504.3.3.el6.x86_64/kernel/drivers/edac/edac_core.ko description: Core library routines for EDAC reporting author: Doug Thompson www.softwarebitmaker.com, et al license: GPL srcversion: C21E296292A2174839A086C depends: vermagic: 2.6.32-504.3.3.el6.x86_64 SMP mod_unload modversions parm: check_pci_errors:Check for PCI bus parity errors: 0=off 1=on (int) parm: edac_pci_panic_on_pe:Panic on PCI Bus Parity error: 0=off 1=on (int) parm: edac_mc_panic_on_ue:Panic on uncorrected error: 0=off 1=on (int) parm: edac_mc_log_ue:Log uncorrectable error to console: 0=off 1=on (int) parm: edac_mc_log_ce:Log correctable error to console: 0=off 1=on (int) parm: edac_mc_poll_msec:Polling period in milliseconds
官方解释:
Total Correctable Errors count attribute file: 'ce_count' This attribute file displays the total count of correctable errors that have occurred on this csrow. This count is very important to examine. CEs provide early indications that a DIMM is beginning to fail. This count field should be monitored for non-zero values and report such information to the system administrator.
启用 mcelog
[root@hh-yun-compute-130125 ~]# service mcelogd restart Stopping mcelog [确定] Starting mcelog daemon [确定] [root@hh-yun-compute-130125 ~]# mcelog mcelog: Family 6 Model 3e CPU: only decoding architectural errors
查询日志
[root@hh-yun-compute-130125 ~]# tail /var/log/mcelog mcelog: failed to prefill DIMM database from DMI data mcelog: mcelog server already running
相关评估
This is a harmless warning message. The DIMM database prefill relies on a specific non-standard format of the DIMMs in the DMI BIOS tables. If this format is not used by the BIOS, mcelog will only discover DIMMs as they get their first error (if the CPU reports DIMMs in machine check errors). Please understand for the most part, mcelog should be ignored.
因此最终决定忽略该信息