Date: Sun, 4 Jul 2010 22:04:18 -0700 From: Garrett Cooper <yaneurabeya@gmail.com> To: David Warren <davideugenewarren@gmail.com> Cc: freebsd-stable@freebsd.org, jvogel@freebsd.org Subject: Re: 8.0 network problem Message-ID: <5D34EED0-9560-45A1-ADCF-176C4996E17E@gmail.com> In-Reply-To: <AANLkTin4l7-UzDQW04voF6Lf-vMaHhCrvXP39GGsmgKG@mail.gmail.com> References: <AANLkTin4l7-UzDQW04voF6Lf-vMaHhCrvXP39GGsmgKG@mail.gmail.com>
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On Jul 4, 2010, at 5:52 PM, David Warren wrote: > Hi all, >=20 > I've got a persistent problem with my LAN. I'm running a FreeBSD = 8.0 > box as a home server performing the following functions for wired and > wireless networks: router; firewall; DHCP server; and file server. = For what > it's worth, I've got ZFS up and running as the main filesystem. The > recurring issue is that file transfers from the FreeBSD box to = computers on > the wired network (gigabit) start out fast and then become agonizingly > slow. I'm sharing home directories over Samba, and those transfers = work > briefly and then tail off to a few kilobytes per second. The failure = is > somewhat predicatable in that it tends to happen once a few hundred > megabytes have been transferred. I've swapped out hardware, I've = Googled > extensively, and all of the (possibly benign) error messages that I've = found > have been eliminated. I'm happy to post logs, configs, etc., and I'd > appreciate any help with a diagnosis. For the moment: Disable rxcsum and txcsum on the cards; see if that does the = trick. Before that, I'd see whether or not Jack Vogel (the current = em(4) maintainer) would some details about your traffic, like a tcpdump = session log. HTH, -Garrett=
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