[Macchiato] [EXT] Network driver crash

Marcin Wojtas mw at semihalf.com
Sun Mar 4 21:29:15 GMT 2018


Hi Steve,

2018-03-04 22:03 GMT+01:00 Steve McIntyre <steve at einval.com>:

> On Sun, Mar 04, 2018 at 01:30:31PM +0000, Stefan Chulski wrote:
> >
> >Yes. Look like it cause issue.
> >
> >Each TX done interrupt mapped to specific CPU by smp_affinity and without
> IRQ
> >balancing. Look like with old dtb interrupt raised on wrong CPU’s.
> >
> >You can work around this issue by disabling TX Done interrupts in
> >mvpp2_port_has_tx_irqs
> >
> >
> >
> >         for (i = 0; i < 5; i++) {
> >
> >                     ret = of_property_match_string(port_node,
> >"interrupt-names",
> >
> >                                                                irqs[i]);
> >
> >                     if (ret < 0)
> >
> >                                 return false;
> >
> >          }
> >
> >-       return true;
> >
> >+      return false;
>
> Hi,
>
> I've tried that but it doesn't fix the problem for me. Same symptoms -
> complaints then a crash. Even hacking a similar change in
> mvpp2_port_probe() didn't help.
>
>
Just to make sure about your setup:
- firmware from Leif?
- which kernel revision?

Thanks,
Marcin
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