Messages in this thread |  | | Date | Sat, 8 Apr 2017 12:23:05 +0200 | From | Francois Romieu <> | Subject | Re: [regression v4.11] 617f01211baf ("8139too: use napi_complete_done()") |
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David Miller <davem@davemloft.net> : [...] > 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
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