On Wed, Jun 08, 2011 at 11:19:36AM -0700, Jesse Gross wrote: > On Wed, Jun 8, 2011 at 10:51 AM, Ben Pfaff <b...@nicira.com> wrote: > > I accidentally discovered that on "master" every IP fragment ends up > > being sent to userspace. ??My test case is "netperf -H 192.168.0.2 -t > > UDP_STREAM" (which generates 64 kB UDP packets), then observing that > > the datapath "miss" counter goes up quickly while the "hit" counter > > stays put, as well as noticing that the packet counter for the UDP > > datapath flow stays stuck at 0. > > Thanks, good catch. In flow_extract() we currently act as if there is > no L4 header at all if the packet is a fragment, however, we should > match against a set of zeroed fields instead of effectively > wildcarding them. > > I write a patch for this in a little bit.
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