> that was my case too. I have not gone too far into my investigation but > should > note that not _all_ interrupts were lost; my symptoms were queue overflows > under netmap even at a low 2 Mpps, which with 2k entries in the rx ring > means > that the interrupt was delayed for more than 1ms, well above the moderation > delay.
This would be consistent with what I am seeing. I saw that vmstat -i reported some interrupt rate for the rx rings but even a simple ping at that point would lead to input errors - queue overflows. > So just to clarify, which one of these symptoms did you see > 1) no rx interrupts at all at any rx rate > 2) occasional missing interrupts/drops as the rx pps increase > 3) complete loss of rx interrupts above some pps threshold ? I think it would be closest to 3. The same HW runs fine when I disable msi/x and use legacy interrupts. -vijay _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
