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又发现一个 特殊的现象.
对外网卡异常 进行系统日志分析
[root@dell2850 root]# tail -1000 /var/log/messages |grep e1
Jul 14 15:56:37 dell2850 kernel: ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:pio
Jul 14 15:56:37 dell2850 kernel: blk: queue f64cbe18, I/O limit 4294967295Mb (mask 0xffffffffffffffff)
Jul 14 15:56:38 dell2850 kernel: e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
Jul 14 15:56:38 dell2850 kernel: e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
7月14日下午15:35出服务器问题后重起的日志 出现 eth0 100M 就会正常。
Jul 14 15:56:38 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
Jul 14 15:56:38 dell2850 kernel: e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
7月14 晚上 NIC LINK DOWN了 第一次起来就还是100M,自己重起了 可以看到后来变10M了。这个期间 服务器没报警 从流量上看 一直到10点是正常的,8点多有一段PING不通的现象.
Jul 14 20:01:45 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Down
Jul 14 20:01:49 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
Jul 14 20:02:41 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Down
Jul 14 20:02:53 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 10 Mbps Full Duplex
7月15早发现问题 从流量看 后半夜就不正常了。第一次重起服务器后 日志如下
Jul 15 07:52:44 dell2850 kernel: e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
eth0 直接就是10M 此时 服务器依然不正常。
Jul 15 07:52:51 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 10 Mbps Full Duplex
Jul 15 07:55:26 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 10 Mbps Full Duplex
Jul 15 08:00:46 dell2850 kernel: BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
Jul 15 08:00:46 dell2850 kernel: ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:pio
Jul 15 08:00:46 dell2850 kernel: blk: queue f6572e18, I/O limit 4294967295Mb (mask 0xffffffffffffffff)
Jul 15 08:00:46 dell2850 kernel: e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
Jul 15 08:00:46 dell2850 kernel: e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
Jul 15 08:00:46 dell2850 kernel: e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
eth0 依然 10M
Jul 15 08:00:53 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 10 Mbps Full Duplex
Jul 15 08:27:39 dell2850 kernel: BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
Jul 15 08:27:39 dell2850 kernel: ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:pio
Jul 15 08:27:39 dell2850 kernel: blk: queue f6572e18, I/O limit 4294967295Mb (mask 0xffffffffffffffff)
关掉防火墙,第二次重起 正常了。一直到现在访问 正常 但ifconfig也有 错误的包 和FRAME(见前面的帖子)
Jul 15 08:27:39 dell2850 kernel: e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
Jul 15 08:27:39 dell2850 kernel: e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
Jul 15 08:27:39 dell2850 kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
Jul 15 08:27:39 dell2850 kernel: e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
第二次重起后的检查结果
[wuyt@dell2850 wuyot]$ dmesg |grep e1
ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:pio
blk: queue f6572e18, I/O limit 4294967295Mb (mask 0xffffffffffffffff)
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
问题总结: 只要是出现Eth0 10M 就肯定不正常。出现100M就正常。
很奇怪的是eth1 每次都是100M
难道跟流量有关系么,注意ETH1为内网卡流量小。
我估计问题:网线 或者交换机端口 问题象 二楼说的 或者网卡问题。.或者驱动问题。大家继续发言啊. |
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