[Hardware Error]: MC4_STATUS[-|CE|MiscV|-|AddrV|CECC]: 0x9c294c00001d018b [Hardware Error]: Northbridge Error (node 4): ECC error in L3 cache tag. [Hardware Error]: cache level: L3/GEN,tx: GEN,mem-tx: SNP [Hardware Error]: Machine check events logged
这种情况在上个月发生了三次,但从未发生过(服务器运行3年).
但是,供应商支持技术人员说：
I have seen these errors MANY times,and unless you are overclocking your cpu – or have had a fan failure or similar – it is VERY unlikely to be a processor
problem. It is more likely that the kernel is misreporting the error.
那么 – 这是一个严重的错误,我应该订购新的部件(更换cpu？)或忽略它？
非常感谢.
解决方法
至于机器检查异常,这些由硬件报告;内核只是将消息传递给您,以便您可以在硬件问题失控之前采取措施并导致真正的灾难.
我能够找到内核“误报”机器检查异常的唯一实例如下. In this case,这是导致问题的处理器中的一个缺陷,而不是内核.
Intel Xeon processor E7 family processors have an issue in which some c-state transitions can cause false correctable Machine Check Exception (MCE) errors to be reported from MCE bank 6 to the user. On some E7 processor family systems,this resulted in “floods” of MCE errors. This patch disables MCE error reporting for bank 6.
一句话：听起来像供应商试图避免更换有缺陷的硬件.
