On Wed, Jul 19, 2017 at 05:07:47PM -0700, Benjamin Poirier wrote: > Are you sure about this? In my testing, while triggering the overrun > with the msleep, I read ICR when entering e1000_msix_other() and RXO is > consistently set.
I had thousands of calls to e1000_msix_other where the only bit set was OTHER. I don't know if the cause is overruns, it just seems plausible. > I'm working on a patch that uses that fact to handle the situation and > limit the interrupt. Excellent. Running in MSI mode rather than MSI-X seems to not have the problem of unexpected interrupts, but has other issues (such as loosing the IRQ affinity setting if you do ifconfig down;ifconfig up on the interface, which does not happen in MSI-X's case.) That's rather annoying as you can't set the affinity before bringing up the interface which is rather undesirable. -- Len Sorensen
