[Bug 221317] Netmap issue after ixgbe driver update in r320897

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221317 Ryan Stone changed: What|Removed |Added CC||rst...@freebsd.org --- Comment #12 fr

igb0 sometimes consume 100% of 4 cores for not-too-heavy traffic

I have system on SuperMicro MoBo with built-in I210 adapters. CPU is E3-1220v3, 4 cores, and igb0 driver creates 4 queues. FreeBSD version is 11.1-STABLE r324205. Sometimes system becomes very unresponsive and igb0 queues consume 100% of CPU for tens of minutes. System doesn't have any fir