[CentOS] kernel NETDEV WATCHDOG: eth0: transmit timed out

[Simon Matter]

> Hi , all :
>
>
> Sometimes  my server network connection on Linux goes down with short
> message in syslog saying: "[localhost kernel] NETDEV WATCHDOG: eth0:
> transmit timed out" (or similar).
>
> By the way , I installed the CentOS 5.4 x86_64 bit and the kernel version
> was  2.6.18-164.
>
> Has anyone experienced this problem or is it the bug of the kernel ?

It usually happens with problems on the physical layer. You network card
may be bad, or the connection, or the other side of the ethernet wire, or
a driver problem in the linux kernel. We don't have enough information
from you so say more.

Simon