Hi, all kernel:3.4.34 64bit host:vsphere4/5 NIC:82545EM NIC driver:7.3.21-k8-NAPI memory:4G CPU: 2 cores
I am facing this in the kernel logs: Jul 26 00:11:32 localhost kernel: e1000 0000:02:00.0: eth0: Detected Tx Unit Hang Jul 26 00:11:32 localhost kernel: Tx Queue <0> Jul 26 00:11:32 localhost kernel: TDH <9f> Jul 26 00:11:32 localhost kernel: TDT <9f> Jul 26 00:11:32 localhost kernel: next_to_use <9f> Jul 26 00:11:32 localhost kernel: next_to_clean <b2> Jul 26 00:11:32 localhost kernel: buffer_info[next_to_clean] Jul 26 00:11:32 localhost kernel: time_stamp <10003327b> Jul 26 00:11:32 localhost kernel: next_to_watch <b3>^C Jul 26 00:11:32 localhost kernel: jiffies <10117e8c2> Jul 26 00:11:32 localhost kernel: next_to_watch.status <0> When I run "ethtool -K eth0 tx off" This problem disappears. I know this command will shutdown tx checksum offloading. Thus this will increase the host cpu loads. And from 82545EM spec, this kind of nic can support tx checksum offloading. I want to know whether it is a bug of driver? It would be great if a fix could be found. Best Regards! zhuyj ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
