Date: Tue, 01 Apr 1997 18:57:50 -0800 From: David Greenman <dg@root.com> To: Jaye Mathisen <mrcpu@cdsnet.net> Cc: hackers@freebsd.org Subject: Re: de driver problems/ CRC errors with 2.2.1-RELEASE Message-ID: <199704020257.SAA21240@root.com> In-Reply-To: Your message of "Tue, 01 Apr 1997 17:14:09 PST." <Pine.NEB.3.95.970401170625.12884d-100000@mail.cdsnet.net>
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>Digital HX6000, P6200/512, 32MB RAM, onboard Adaptec 7880, UW's, Toshiba >12X CDROM, 1 2GB seagate Barracude (wide), 1 SMC dual port 10/100 card. > >This box is hooked to a 3COM Superstack II Switch 3000, (A 100MB switch). > >Any heavy NFS access (like via iozone on NFS partition) generates >kazillions of CRC align errors, at the rate of 30-40/second. (At least, >according to the 3com switch, and the output of netstat). > >lighter access doesn't seem to do it. > >For example, running bonnie, the putc phase generates oodles of errors, >but the rewrite phase generates maybe 1 or 2 per page of output. > > >Any tips appreciated, I've been happy with the de driver, but this >is not acceptable or usable. > > >BTW, I took a box with a much older 2.2 kernel, from around October or so, >and plugged it in, and zero problems. So it seems like a moderately >recent development. Try forcing half duplex on the switch port. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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