Date: Mon, 2 Dec 2002 12:47:34 -0500 From: "Craig Reyenga" <creyenga@connectmail.carleton.ca> To: "Terry Lambert" <tlambert2@mindspring.com> Cc: <freebsd-current@freebsd.org> Subject: Re: Any ideas at all about network problem? Message-ID: <005601c29a2a$e5cee280$0200000a@sewer.org> References: <2668299.1038795112570.JavaMail.creyenga@connectmail.carleton.ca> <3DEAE3E3.234605A9@mindspring.com> <001101c299bd$d2cc53b0$0200000a@sewer.org> <3DEAEA67.97073515@mindspring.com> <001001c299c7$766a6120$0200000a@sewer.org> <3DEB1374.9E9BFDB@mindspring.com>
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Ok, I'm convinced. Clearly I'm the one that has to do the testing because I seem to be the lucky guy with the problem. The super weird thing about all of this is that cpu usage is very minimal during transfers. The 905 card was weird too: it actually ran at 8MB/sec for about 4 sec, then the kernel gave a few TX errors and then it stayed at or below 3.7MB/sec. I have also tried my friends laptop as an alternate client and it showed identical behaviour as my usual WinXP box. My setup has no switches or anything, just a white cable. If I need to give more information, just ask and I'll try to fetch it. I've already given a full dmesg and a few other things, so I'm not sure what to say at this point. Thanks in advance, -Craig ----- Original Message ----- From: "Terry Lambert" <tlambert2@mindspring.com> > Craig Reyenga wrote: > > I just tried a 3com 3c905 NIC (my roommate's) and it _also_ > > transfers slowly (about 3.5MB/sec, so just under half of what i used to > > get with my realtek in -stable). It also spit out a few messages: > > [ ... ] > > > I'd really rather not play around with different versions of FreeBSD to > > fix this problem, because this computer is where I keep all of my stuff, > > and with exams, I just won't have the time. Yes I know that I "shouldn't be > > using 5.0 then" but a problem is a problem and it should be fixed. > > Your alternative to doing the necessary binary search is to > provide enough information that someone else can repeat the > reduced performance you are getting with your hardware, so > that they can perform the binary search on your behalf. > > FWIW, the root cause is likely a result of something in the > last 8 months, which means log2(240)+1 = 8 compiles to find > the problem on your hardware; if, in the last 2.5 years, > which we know to be the case, it's log2(2.5*365)+1 = 10 > compiles. > > You already have hardware to test the kernels out on, to see > if a particular version has the problem, so you're the logical > candidate to do the compiling. Given a 1GHz machine, we are > probably talking about 6 hours elapsed time, given a local CVS > tree, and compiling and testing occurring serially. > > If you don't want to do the work, you are going to have to > provide a better characterization of the problem so that it > can be repeated by someone who's willing to do it on your > behalf, or out of curiousity; most people who could deal with > it for you aren't the types to buy RealTek or 3C905 ethernet > cards, which the driver comments suggest are badly designed > hardware. > > -- Terry > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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