操作系统错误:内核: EDAC k8 MC0:扩展错误代码: ECC芯片x4

Question

我们注意到服务器崩溃时出现了以下错误。不确定它是否与硬件中任何有缺陷的部分有关，或者完全与

服务器详细信息: release第4版(Nahant更新6) root@athena日志# uname -a Linux athena.nsdecatur.local 2.6.9-67.0.7 ES #1 SMP Wed Feb 27 04:47:23 EST 2008 x86_64 GNU/Linux

消息

Sep 17 15:08:16 athena kernel: EDAC k8 MC0: general bus error: participating processor(local node response), time-out(no timeout) memory transaction type(generic read), mem or i/o(mem access), cache level(generic)
Sep 17 15:08:16 athena kernel: MC0: CE page 0x2c2766, offset 0xb10, grain 8, syndrome 0xac08, row 1, channel 0, label "": k8_edac
Sep 17 15:08:16 athena kernel: MC0: CE - no information available: k8_edac Error Overflow set
Sep 17 15:08:16 athena kernel: EDAC k8 MC0: extended error code: ECC chipkill x4 error
Sep 17 15:08:17 athena su(pam_unix)[19579]: session opened for user oracle by (uid=0)
Sep 17 15:08:17 athena su(pam_unix)[19579]: session closed for user oracle
Sep 17 15:08:17 athena su(pam_unix)[19634]: session opened for user oracle by (uid=0)
Sep 17 15:08:17 athena su(pam_unix)[19634]: session closed for user oracle
Sep 17 15:08:18 athena kernel: EDAC k8 MC0: general bus error: participating processor(local node origin), time-out(no timeout) memory transaction type(generic read), mem or i/o(mem access), cache level(generic)
Sep 17 15:08:18 athena kernel: MC0: CE page 0x39c857, offset 0xd50, grain 8, syndrome 0x1cc8, row 1, channel 0, label "": k8_edac
Sep 17 15:08:18 athena kernel: MC0: CE - no information available: k8_edac Error Overflow set
Sep 17 15:08:18 athena kernel: EDAC k8 MC0: extended error code: ECC chipkill x4 error
Sep 17 15:08:18 athena su(pam_unix)[19715]: session opened for user oracle by (uid=0)
Sep 17 15:08:18 athena su(pam_unix)[19715]: session closed for user oracle
Sep 17 15:08:18 athena su(pam_unix)[19758]: session opened for user oracle by (uid=0)
Sep 17 15:08:19 athena su(pam_unix)[19758]: session closed for user oracle
Sep 17 15:08:20 athena su(pam_unix)[19807]: session opened for user oracle by (uid=0)
Sep 17 15:08:20 athena su(pam_unix)[19807]: session closed for user oracle
Sep 17 15:08:20 athena su(pam_unix)[19850]: session opened for user oracle by (uid=0)
Sep 17 15:08:20 athena su(pam_unix)[19850]: session closed for user oracle
Sep 17 15:08:20 athena kernel: EDAC k8 MC0: general bus error: participating processor(local node origin), time-out(no timeout) memory transaction type(generic read), mem or i/o(mem access), cache level(generic)
Sep 17 15:08:20 athena kernel: MC0: CE page 0x39c857, offset 0xd50, grain 8, syndrome 0x1cc8, row 1, channel 0, label "": k8_edac
Sep 17 15:08:20 athena kernel: EDAC k8 MC0: extended error code: ECC chipkill x4 error
Sep 17 15:08:21 athena su(pam_unix)[19899]: session opened for user oracle by (uid=0)
Sep 17 15:08:21 athena kernel: EDAC k8 MC0: general bus error: participating processor(local node origin), time-out(no timeout) memory transaction type(generic read), mem or i/o(mem access), cache level(generic)
Sep 17 15:23:54 athena syslogd 1.4.1: restart.
Sep 17 15:23:54 athena syslog: syslogd startup succeeded
Sep 17 15:23:54 athena kernel: klogd 1.4.1, log source = /proc/kmsg started.

Answer 1

这些错误意味着RAM检测到了ECC事件。你的RAM出错了。通常，您会继续监视更多的内存，这通常意味着您的RAM正在失败/故障，或者RAM的控制器正在失败。偶尔有一两个也不稀奇。

无论是哪种情况，都是硬件故障。

监控

如果您对监视这些故障和设置阈值感兴趣，您可能需要查看mcelog包。触发器的设置和它所做的都在这个题为：编写mcelog触发器的U&L问题中涉及到。