Issue システムがネットワーク接続を失い、/var/log/messages に次のようなネットワークドライバーのバックトレースが表示されます。 WARNING: at net/sched/sch_generic.c:... dev_watchdog+0x.../0x...() (Not tainted) Hardware name: ... NETDEV WATCHDOG: ethX (<drivername>): transmit queue N timed out Modules linked in: ... Pid: ..., comm: ... Not tainted 2.6.32-....el6.x86_64 #1 Call Trace: <IRQ> [<ffffffff........>] ? warn_slowpath_common+... [<ffffffff....
![`kernel: WARNING: at net/sched/sch_generic.c dev_watchdog()` というエラーは何を示していますか? - Red Hat Customer Portal](https://cdn-ak-scissors.b.st-hatena.com/image/square/3108d3d39d44b30ca4891c7cf9161910927d3fdb/height=288;version=1;width=512/https%3A%2F%2Faccess.redhat.com%2Fwebassets%2Favalon%2Fg%2Fshadowman-200.png)