On Wed, May 13, 2009 at 10:52:34AM +1200, Nigel Wohlers wrote: > On 13/5/09 8:41 AM, Xin LI wrote: > >-----BEGIN PGP SIGNED MESSAGE----- > >Hash: SHA1 > > > >Hi David, > > > >David Samms wrote: > >>After upgrading to 7.2 (amd64) some customers complained of very poor > >>bandwidth. Upon investigation all the effected customers were ATT DSL > >>clients located all over the USA, not in a single city, nor were other > >>ISPs effected. The server is a Supermicro with dual (quad core) > >>processors with a single Intel fxp network card on a 100mbit connection. > > > >Could you please try if this would help: > > > > sysctl net.inet.tcp.tso=0 > > > >Cheers, > >- -- > >Xin LI<[email protected]> http://www.delphij.net/ > > > Thank you! This hint has saved me a lot of troubleshooting. > > I was having the same issue as David with 3 servers recently upgraded to > 7.2. Clients (MS Windows) were complaining that they were having > intermittent connectivity issues talking to these servers (https, imaps). > > They too have fxp network interface cards, no issues with other servers > upgraded to 7.2 with em cards. >
Instead of disabling TSO in network stack, just disable TSO in fxp(4) as a workaround. Fix already is in RELENG_7(r191867) so you can extract the patch and apply it by hand if you want. For instance, #cd /tmp #fetch -o fxp.tso.patch "http://svn.freebsd.org/viewvc/base/head/sys/dev/fxp/if_fxp.c?r1=190982&r2=188176&view=patch"; #cd /usr/src/sys/dev/fxp #patch -p4 < /tmp/fxp.tso.patch And rebuild kernel. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
