This may be kernel problem. Do you have to use one of the new kernels for now? Since changing the driver doesn't change things this most likely is not a driver problem.
Are you sure nothing else on the network has changed? Like a switch or router? Or even a switch configuration change? Is spanning tree enabled on your switch? Does it go back to working if you go back to an older kernel? Cheers, John > -----Original Message----- > From: Nils Faerber [mailto:[email protected]] > Sent: Monday, August 09, 2010 3:19 AM > To: [email protected] > Subject: Re: [E1000-devel] e1000e latency issues > > As addendum here is a short ping log: > > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4093 ttl=64 > time=0.581 ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4094 ttl=64 time=18.2 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4095 ttl=64 time=186 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4096 ttl=64 > time=0.565 ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4097 ttl=64 time=542 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4098 ttl=64 > time=0.870 ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4099 ttl=64 time=792 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4100 ttl=64 time=1.52 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4101 ttl=64 time=188 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4102 ttl=64 time=1.11 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4103 ttl=64 time=648 > ms > 64 bytes from piwi.kc.de (192.168.2.28): icmp_seq=4104 ttl=64 time=112 > ms > > As you can see every second ping (at least every third) has times >> > 100ms, in this log up to 648ms but they can even exceed 1000ms. > > I really need that interface to behave so any help would really be > appreciated... > > Cheers > nils > > > Am 09.08.2010 00:25, schrieb Nils Faerber: > > Hello! > > I am more or less "trying" to use the e1000e driver on a Thinkpad > X60. > > Up to kernel 2.6.32 it worked quite fine. The next kernel I tried was > > 2.6.34.1 and now 2.6.35 and there I find a very nasty issue which is > > high packet latencies, varying. If I do e.g. a ping to machine on the > > local net ping times are sometimes OK but most of the time > 300ms > and > > going up to 1000ms - which is inacceptable. > > > > The very nasty and for me kind of neck breaking side effect is that I > > cannot boot my embedded boards over tftp from this e1000e machine > > anymore which renders the notebook useless for my work :( The > embedded > > board's tftp client timeouts on almost every packet and gives up > > sooner or later. > > > > Instead of the in-kernel e1000e driver I also tried the latest > release > > from your sf.net page e1000e-1.2.10.tar.gz. > > > > I also already tried different module parameters like disable the > > power management, disabling MSI, etc. but no change. The only thing I > > know is that the driver from 2.6.32 worked. > > > > If I can help to diagnose this let me know. > > If you have a possible solution, even better ;) > > > > Thanks! > > > > PS: I am not subscribed to the e1000 list so in case you reply please > > take my address into CC directly - thanks! > > > > Cheers > > nils > > -- > kernel concepts GbR Tel: +49-271-771091-12 > Sieghuetter Hauptweg 48 Fax: +49-271-771091-19 > D-57072 Siegen Mob: +49-176-21024535 > http://www.kernelconcepts.de > > ----------------------------------------------------------------------- > ------- > This SF.net email is sponsored by > > Make an app they can't live without > Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM- > dev2dev _______________________________________________ > 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 ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ 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
