我们有 RHEL 7.6 服务器,并且我们注意到以下内核消息。
[1065085.048872] EDAC sbridge MC0: PROCESSOR 0:406f1 TIME 1676989040 SOCKET 0 APIC 0
[1065086.052107] EDAC MC1: 0 CE memory read error on CPU_SrcID#1_Ha#0_Chan#0_DIMM#0 (channel:0 slot:0 page:0x2ae958e offset:0xa00 grain:32 syndrome:0x0 - area:DRAM err_code:0000:009f socket:1 ha:0 channel_mask:1 rank:0)
[1065166.234239] mce: [Hardware Error]: Machine check events logged
此外,我们查看了 iDRAC,结果如下
我们有以下信息
原因内存可能无法运行。(请参阅解决方案)这是未来可能出现无法纠正的错误的早期指标。
内存错误可能以多种方式显示在系统中,并且可能因系统的使用年限或(系统代数)而异。根据系统固件级别,也可能存在细微差异。错误消息可能出现在开机自检时的 BIOS 消息、iDRAC 日志、OpenManage System Administrator (OMSA) 日志、系统 LCD 显示屏或操作系统中的一个或多个中。
但我不确定我的物理机上的 DIMM 是否需要更换?
其他链接
从我们看到的其他 RHEL 案例来看 -https://access.redhat.com/solutions/6961932
解决方案错误代码 err_code:0101:0091 来自硬件。
操作系统仅在消息日志中检测并报告它们。
目前,错误消息来自 SuperMicro 和 HP 硬件。
建议联系硬件供应商获取更多信息。
所以我很困惑。并且不清楚我们是否需要更换 DIMM 卡。
这是我们从 dmesg 看到的额外内核消息输出
[34226.902474] EDAC sbridge MC0: HANDLING MCE MEMORY ERROR
[34226.902477] EDAC sbridge MC0: CPU 0: Machine Check Event: 0 Bank 1: 940000000000009f
[34226.902479] EDAC sbridge MC0: TSC 41a0d0c2a8a2
[34226.902482] EDAC sbridge MC0: ADDR 3a2b80a00
[34226.902484] EDAC sbridge MC0: MISC 0
[34226.902486] EDAC sbridge MC0: PROCESSOR 0:406f1 TIME 1675958197 SOCKET 0 APIC 0
[34227.566735] EDAC MC0: 0 CE memory read error on CPU_SrcID#0_Ha#0_Chan#1_DIMM#1 (channel:1 slot:1 page:0x3a2b80 offset:0xa00 grain:32 syndrome:0x0 - area:DRAM err_code:0000:009f socket:0 ha:0 channel_mask:2 rank:4)
[34239.759292] {16}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 4
[34239.759297] {16}[Hardware Error]: It has been corrected by h/w and requires no further action
[34239.759299] {16}[Hardware Error]: event severity: corrected
[34239.759301] {16}[Hardware Error]: Error 0, type: corrected
[34239.759303] {16}[Hardware Error]: fru_text: A6
[34239.759305] {16}[Hardware Error]: section_type: memory error
[34239.759307] {16}[Hardware Error]: error_status: 0x0000000000000400
[34239.759308] {16}[Hardware Error]: physical_address: 0x00000009df0e0440
[34239.759319] {16}[Hardware Error]: node: 0 card: 1 module: 1 rank: 0 bank: 3 row: 39911 column: 16
[34239.759321] {16}[Hardware Error]: error_type: 2, single-bit ECC
[34239.759331] mce: [Hardware Error]: Machine check events logged
[34239.759351] EDAC sbridge MC0: HANDLING MCE MEMORY ERROR
[34239.759355] EDAC sbridge MC0: CPU 0: Machine Check Event: 0 Bank 1: 940000000000009f
[34239.759357] EDAC sbridge MC0: TSC 41a71a0719df
[34239.759359] EDAC sbridge MC0: ADDR 9df0e0440
[34239.759362] EDAC sbridge MC0: MISC 0
[34239.759364] EDAC sbridge MC0: PROCESSOR 0:406f1 TIME 1675958210 SOCKET 0 APIC 0
答案1
根据 Sun 的一份相当老的文档(针对不同的硬件,但对我来说听起来很合理),如果您每天看到此错误超过两次(对于一个 DIMM),则是时候更换它了。否则,您将面临 ECC 无法成功纠正错误的风险,并且您的数据将遭到破坏。