Hi,Lists,
I noticed that Pyun have fixed some bugs about TSO&.CHECKSUM offload
issues on FreeBSD recently. Does the same issues happend on Dfly ?
Regards
Simon
于 14-4-18 10:12, k simon 写道:
And I found lo0 reported bad checksum too.
于 14-4-18 9:38, k simon 写道:
Hi,Matthew,
When it report bad checksum, the web pages can not opened. If
disabled the HW checksum, then it acts normally. I think it's a real
problem and I would take a bce card try again.
Simon
于 14-4-18 2:02, Matthew Dillon 写道:
Bad checksums reported by tcpdump are not necessarily actually bad. What
is happening is that the checksum field is not updated when HW checksums
are enabled... the code depends on the HW to tell it if the checksum is
bad or not (on receive), and depends on the HW to generate the checksum
(on transmit). So the packet in the mbuf which tcpdump is parsing may
not have a filled-in checksum field.
If you are getting actual communications glitches, e.g. pings not
returning, tcp throughput problems, and so forth, then you might have a
real problem.
-Matt
