we are getting such errors: [ 408.737313] ixgbe 0000:03:00.0 eth0: Detected Tx Unit Hang (XDP) Tx Queue <46> TDH, TDT <0>, <2> next_to_use <2> next_to_clean <0> tx_buffer_info[next_to_clean] time_stamp <0> jiffies <1000197c0> [ 408.804438] ixgbe 0000:03:00.0 eth0: tx hang 1 detected on queue 46, resetting adapter [ 408.804440] ixgbe 0000:03:00.0 eth0: initiating reset due to tx timeout [ 408.817679] ixgbe 0000:03:00.0 eth0: Reset adapter [ 408.866091] ixgbe 0000:03:00.0 eth0: TXDCTL.ENABLE for one or more queues not cleared within the polling period [ 409.345289] ixgbe 0000:03:00.0 eth0: detected SFP+: 3 [ 409.497232] ixgbe 0000:03:00.0 eth0: NIC Link is Up 10 Gbps, Flow Control: RX/TX
while running XDP prog on ixgbe nic. right now i'm seing this on bpfnext kernel (latest commit from Wed Aug 15 15:04:25 2018 -0700 ; 9a76aba02a37718242d7cdc294f0a3901928aa57) looks like this is the same issue as reported by Brenden in https://www.spinics.net/lists/netdev/msg439438.html -- Nikita V. Shirokov