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forcedeth: too many iterations [...] in nv_nic_irq



I've been seeing the error:

  Aug 18 21:24:59 titan kernel: eth-gig1: too many iterations (6) in nv_nic_irq.

in the logs when there is heavy network traffic on my Sarge/amd64
system.  The error is produced by the kernel module forcedeth for the
on-board gigabit ethernet controller.

Suggestions I've found through googling indicate using the
'max_interrupt_work' module parameter and setting it to a larger value,
rather than the default 5.

I've done this, and setting it to 15 results in similar errors:

  Aug 22 21:32:18 titan kernel: eth-gig1: too many iterations (16) in nv_nic_irq.

There's no obvious misbehaviour going on, apart from seeing this
message, but I'm concerned.

Any thoughts/comments on this?

Thanks,

Dave.
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