Re: [regression v4.11] 617f01211baf ("8139too: use napi_complete_done()")

[Francois Romieu]

David Miller <davem@xxxxxxxxxxxxx> :
[...]
> One theory is that the interrupt masking isn't working properly
> and interrupts are still arriving and hitting the NAPI state even
> when we are actively polling NAPI.
> 
> And this problem was masked by the locking done here.

Yes.

Ville, can you rule out irq sharing between the 8139 and some other
device ? It's a candidate for unexpected interrupt handler invocation
with older pc, even with properly working hardware.

-- 
Ueimor