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

Brian Long (brilong) brilong at cisco.com
Mon Feb 13 14:30:51 UTC 2012


Could the system have old firmware on that NIC?  Does your vendor provide firmware updates which could be installed?  Without looking into the problem, I wonder if it's a driver/firmware interaction issue.

/Brian/

On Feb 13, 2012, at 9:11 AM, daryl herzmann wrote:

> 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
> 
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