情况是,当主机安装完 CentOS 6.6 后,使用 SSH 操作一段时间,连线突然中断,再来就 ping 不到,本机也 ping 不到同网段的,本机自 ping 自已的 ip 就可以.
而 message 出现:
Nov 22 20:34:12 st kernel: e1000e 0000:07:00.0: eth0: Timesync Tx Control register not set as expected
网卡资讯:
- # ethtool -i eth0
- driver: e1000e
- version: 2.3.2-k
- firmware-version: 1.9-0
- bus-info: 0000:07:00.0
- supports-statistics: yes
- supports-test: yes
- supports-eeprom-access: yes
- supports-register-dump: yes
- supports-priv-flags: no
- # ethtool eth0
- Settings for eth0:
- Supported ports: [ TP ]
- Supported link modes: 10baseT/Half 10baseT/Full
- 100baseT/Half 100baseT/Full
- 1000baseT/Full
- Supported pause frame use: No
- Supports auto-negotiation: Yes
- Advertised link modes: 10baseT/Half 10baseT/Full
- 100baseT/Half 100baseT/Full
- 1000baseT/Full
- Advertised pause frame use: No
- Advertised auto-negotiation: Yes
- Speed: 1000Mb/s //Vevb.com
- Duplex: Full
- Port: Twisted Pair
- PHYAD: 1
- Transceiver: internal
- Auto-negotiation: on
- MDI-X: on (auto)
- Supports Wake-on: pumbg
- Wake-on: g
- Current message level: 0x00000007 (7)
- drv probe link
- Link detected: yes
解决方式是要在 /boot/grub/grub.conf ?加入 pcie_aspm=off
kernel /vmlinuz-xxxxxxxxxxxxxxxxxx ro root=xxxxxxxxxxxx pcie_aspm=off
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