How can I debug kernel & network driver during netperf test!!

My board failed in netperf test.
But the kernel told me nothing. That is, no kernel woops!!

In that case, how can I debug kernel & network driver ?


JoohyeonPark

JoohyeonPark wrote:

> My board failed in netperf test.
> But the kernel told me nothing. That is, no kernel woops!!
>
> In that case, how can I debug kernel & network driver ?

What means "board failed"? Does system die completely
or all processes stop but host remains pingable from outside?
I saw strange faults where system became unusable as locally as e.g. via ssh,
but ping and iptables(!) still worked.

Maybe, it's also your case?



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Innocenti Maresin <(E-Mail Removed)> wrote in message news:<(E-Mail Removed)>...
> JoohyeonPark wrote:
>
> > My board failed in netperf test.
> > But the kernel told me nothing. That is, no kernel woops!!
> >
> > In that case, how can I debug kernel & network driver ?
>
> What means "board failed"? Does system die completely
> or all processes stop but host remains pingable from outside?
> I saw strange faults where system became unusable as locally as e.g. via ssh,
> but ping and iptables(!) still worked.
>
> Maybe, it's also your case?

Thank for your attention.
"board fails" means "no serial console available".
That is, I couldn't check anything cause serial console died.
And no ping test to my board succeeded .