Dear Jesse, Brandeburg, Jesse wrote:
> Hi Lars, just looking back over old emails, and I did notice that at > least with one of your messages the stats still showed > tx_tcp_seg_good: 13136 > > Which means that you still had TSO enabled. Yes, true. I disabled TSO after a while. Is there a recommended setup of all offload/checksum options for this kind of problems? The offloading setup for the interface right now is: Offload parameters for aur-mgt: Cannot get device flags: Operation not supported rx-checksumming: on tx-checksumming: off scatter-gather: off tcp segmentation offload: off udp fragmentation offload: off generic segmentation offload: on large receive offload: off I have loaded the module (version 8.0.19) with the following options: TxDescriptorStep=4 TxDescriptors=1024 There are not any messages related to hangs in the logs now, but there are still outages. I guess a restart routine is kicking in after a while because I see the following entries in the log after an outage: Apr 11 09:22:50 gw kernel: [1179488.074216] e1000: aur-mgt: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None However, there are not any "Link is Down" messages in the logs. > Can you make absolutely sure that ethtool -K ethX tso off is done on > each 82541 interface? > > The other thing that might be relevant is if you have >= 4GB ram. Nope, the machine has 2 GB RAM. Could it be that the problem is related to hyperthreading? What I find odd is that the problem occurs on 2 machines, while it does not occur on 3 other machines. I cannot find a difference in the system settings though. Unfortunately there a stickers on the network chips, so I can't say if there are different revisions of the 82541 chips in those machines. If I should provide more information, please let me know. Best regards, Lars ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ 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
