Date: Mon, 28 Aug 2000 08:50:49 -0400 From: "Gray, David W." <David_W_Gray@tvratings.com> To: "'Ken Seggerman'" <suleyman@echonyc.com>, freebsd-mobile@freebsd.org Subject: RE: Linksys works with ftp but not nfs Message-ID: <01D4D419B1A4D111A30400805FE65B13070ABFD5@nmrusdunsx1.nielsenmedia.com>
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This looks like an old problem that we used to see a few years ago. You might try reducing the read and write sizes for the nfs mount (see nfs_mount(8), re the -r and -w options.) Basically, the problem happened that a fast server could deliver packets faster than the machine could process them. The NFS packet was several wire packets long (8K?) and the fast, grouped-together packets would consistantly over-run the NIC's buffer. But, since it could ONLY re-try in terms of the whole NFS packet, it would overrun, fail, retry ad infinitum... -----Original Message----- From: Ken Seggerman [mailto:suleyman@echonyc.com] Sent: Monday, August 28, 2000 12:49 AM To: freebsd-mobile@freebsd.org Subject: Linksys works with ftp but not nfs Greetings: I have just installed 4.1 on my Toshiba 305 CDS laptop. Under 3.4 with PAO everything worked fine including a Linksys 10/100 EtherFast NIC, a Xircom CreditCard Modem, and a 3Com Megahertz 574B. The Linksys seemed to be working fine, it could ping, telnet ftp and do nfs file system mounts fine. I could tar up and move large directories from one machine to another by ftp, but as soon as I tried to move anything big over an nfs mount, it would hang. An empty file with no permssion attributes would be created on the receiving system, the lights would stop blinking and the process could not be killed. I thought I had a nfs configuration problem, but when I swapped the 3Com NIC for the Linksys, everything worked. nfs with identical configuration works fine between my two desktop machines with different NICs. Any suggestions would be welcome. Ken Seggerman ken_seggerman@suleyman.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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