[rhelv6-list] WARNING: at net/sched/sch_generic.c:261 dev_watchdog leads to unresponsive network

[daryl herzmann]

Greetings all,

I recently (~ 1 Jan) installed RHEL6 64bit on a system that has a:

   Intel Corporation 82574L Gigabit Network Connection

which uses the e1000e module.  Anyway, I've had nothing but trouble since. 
The network device becomes unresponsive after some seemingly random amount 
of time and a reboot is necessary to get it back functioning (reloading 
the module does not seem to help).  I filed this issue in bugzilla here:

   https://bugzilla.redhat.com/show_bug.cgi?id=782586

The standard error that comes to the console is:

Jan 17 12:38:46 xxx kernel: WARNING: at net/sched/sch_generic.c:261 
dev_watchdog+0x26d/0x280() (Not tainted)
Jan 17 12:38:46 xxx kernel: Hardware name: X9SCL/X9SCM
Jan 17 12:38:46 xxx kernel: NETDEV WATCHDOG: eth0 (e1000e): transmit queu
e 0 timed out

This system is fully updated RHEL6.2.  Anybody seem this before / have 
ideas on what to try to make it stop! :)

thanks,
  daryl