On Tue, 2010-04-13 at 12:00 +0100, stephen mulcahy wrote: > Eric Dumazet wrote: > > Le mardi 13 avril 2010 à 11:03 +0100, stephen mulcahy a écrit : > >> Eric Dumazet wrote: > >>> OK it seems forcedeth has problem with checksums ? > >>> > >>> Try to change "ethtool -k eth0" settings ? > >>> > >>> ethtool -K eth0 tso off tx off > >> Yes, that makes an unresponsive system responsive again immediately, nice! > >> > >> Should the driver default to disabling this until we problem is corrected? > >> > >> -stephen > > > > Both flags need to be disabled, or only one is OK ? > > ethtool -K eth0 tx off > > fixes the problem (without tso) > > but running > > ethtool -k eth0 > Offload parameters for eth0: > rx-checksumming: on > tx-checksumming: off > scatter-gather: off > tcp-segmentation-offload: off > udp-fragmentation-offload: off > generic-segmentation-offload: on > generic-receive-offload: off > large-receive-offload: off > > seems to indicate that tso is also disabled by this - does that sound > correct?
That's correct - TSO requires TX offload. What happens if you only turn off TSO? Ben. (wearing another hat) -- Ben Hutchings, Senior Software Engineer, Solarflare Communications Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
