======================================= *Gordon Messmer* wrote
On 02/07/2012 07:26 PM, Devin Reade wrote:
/ I had a lot of problems with the network stack on VMs, both under
/>/ VMWare ESXi and Xen where the network would just go numb. After a />/ lot of splunking I determined that it seemed to be related to />/ faulty TCP segment offload. / Yeah, wow. You just jogged my memory. Intel 82573(V/L/E) ethernet adapters had a serious bug that would cause TX hangs:
http://downloadmirror.intel.com/9180/eng/README.txt "82573(V/L/E) TX Unit Hang Messages"
Bob, what model cards did you have in your server?
===================================== http://www.supermicro.com/products/system/2U/6026/SYS-6026T-NTR_.cfm
Intel® 82576 Dual-Port Gigabit Ethernet Controller (though I think this is basically e1000)