Hi All My system is experiencing strange fake TX hangs. I'm running ixgbe 3.9.15 on a modified 2.6.18 Linux (with multi queue enabled, Per TX queue lock).
ixgbe 0000:82:00.1: eth0: Fake Tx hang detected with timeout of 5 seconds NETDEV WATCHDOG: eth0: transmit timed out ixgbe 0000:82:00.1: eth0: Fake Tx hang detected with timeout of 10 seconds NETDEV WATCHDOG: eth0: transmit timed out ixgbe 0000:82:00.1: eth0: Fake Tx hang detected with timeout of 20 seconds And this keeps going on. The messages are from ixgbe_tx_timeout() which is invoked from dev_watchdog() (sch_generic.c) I instrumented the kernel and the ixgbe driver and found that ixgbe_maybe_stop_tx() stop a tx queue in ixgbe_xmit_frame_ring(). Please help me figure out where the queue is restart or the device is restarted. Looking at ethtool -S show tx_restart_queue as 0. I'm running a Spirent Avalanche test so it's quite consistent. Any leads ? Thanks ! -- Best regards, Tal Abudi ------------------------------------------------------------------------------ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
