Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm having trouble with an onboard nvidia gigabit network, under times of heavy load on the network, I'm seeing this error logged:

"too many iterations (6) in > nv_nic_irq"

I'm running Hadoop DFS over these NICs and I see checksum errors build up until the whole thing just fails.

I'm running the 2.6.26-2-amd64 kernel, and my initial research seems to imply its a problem with the forcedeth driver.

Has anyone run into this problem before?

Thanks in advance if anyone can help! Ryan

share|improve this question

Yes, that is apparently quite common. This question is several weeks old so you probably already found the answer, but if not the fix seems to be to add:


to modprobe.conf, as in:

options forcedeth max_interrupt_work=15

Even with this change, I have still had some intermittent problems with forcedeth during large network transfers, but I never again received the error message you listed.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.