On Tue, Jan 18, 2011 at 07:35:30PM +0100, sth...@nethelp.no wrote: > > > I'm seeing the same problem with Broadcom NetXtreme (bce) cards: > > > > > > bce0@pci0:3:0:0: class=0x020000 card=0x03421014 chip=0x164c14e4 > > > rev=0x12 hdr=0x00 > > > vendor = 'Broadcom Corporation' > > > device = 'Broadcom NetXtreme II Gigabit Ethernet Adapter > > > (BCM5708)' > > > class = network > > > subclass = ethernet > > > > > > This is with 8.2-PRERELEASE. Turning off TSO (ifconfig bce0 -tso) > > > removes the problem. > > > > > > > Is there a reliable way to trigger this on bce(4)? I don't have > > BCM5708 but I have BCM5709 so I can verify that. > > It showed up pretty much immediately when running a csup sessions > against cvsup2.us.freebsd.org. > > I have a pcap file from the session, if you're interested. >
I vaguely guess upper stack might pass less than MSS sized segment to TSO capable driver with CSUM_TSO. How about merging r212803 to stable/8? > Steinar Haug, Nethelp consulting, sth...@nethelp.no _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
