Re: [PATCH] forcedeth: make msi-x different name for rx-tx

From: Ingo Molnar
Date: Mon Feb 09 2009 - 07:01:43 EST



* Yinghai Lu <yinghai@xxxxxxxxxx> wrote:

> Ingo Molnar wrote:
> > * Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> >
> >> Ingo Molnar wrote:
> >>> Cool cleanups!
> >>>
> >>> Would you mind to also fix the following - on all my systems that have
> >>> forcedeth gigabit ethernet i've been getting these bogus warnings for
> >>> _years_, under moderate load:
> >>>
> >>> eth2: too many iterations (16) in nv_nic_irq.
> >>>
> >>> I think a 64 iterations limit will work much better. (i tried a limit of 50
> >>> a year ago for a while and it worked fine and had no side effects - and the
> >>> bogus warnings were done.)
> >> you may enable CONFIG_FORCEDETH_NAPI.
> >>
> >> we should enable NAPI for forcedeth by default, and try to squash more bugs out.
> >
> > i do have that:
> >
> > CONFIG_FORCEDETH=y
> > CONFIG_FORCEDETH_NAPI=y
> >
> > and the messages still come.
>
> so you systems are using ioapic routing, or msi.
>
> and those messages are from
> nv_nic_irq_optimized or nv_nic_irq
> for TX or OTHER (timerirq).

yes, IO-APIC:

18: 81386 306713817 0 0 1413724087 0 0
0 0 0 0 0 0 0 0
0 IO-APIC-fasteoi eth2

Those messages do come and are annoying.

Ingo
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