From owner-freebsd-bugs Thu Feb 28 23:50:12 2002 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id EEBD837B41D for ; Thu, 28 Feb 2002 23:50:03 -0800 (PST) Received: (from gnats@localhost) by freefall.freebsd.org (8.11.6/8.11.6) id g217o3e64107; Thu, 28 Feb 2002 23:50:03 -0800 (PST) (envelope-from gnats) Date: Thu, 28 Feb 2002 23:50:03 -0800 (PST) Message-Id: <200203010750.g217o3e64107@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org Cc: From: "Crist J. Clark" Subject: Re: kern/35442: Problem transmitting runts in if_sis driver (with patch for fix) Reply-To: "Crist J. Clark" Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org The following reply was made to PR kern/35442; it has been noted by GNATS. From: "Crist J. Clark" To: "George V. Neville-Neil" Cc: freebsd-gnats-submit@FreeBSD.ORG Subject: Re: kern/35442: Problem transmitting runts in if_sis driver (with patch for fix) Date: Thu, 28 Feb 2002 23:46:15 -0800 On Thu, Feb 28, 2002 at 10:55:47PM -0800, George V. Neville-Neil wrote: [snip] > Packets that are less than the 60 byte minimum for ethernet > are transmitting with trailing 1 bits (this shows up at 0xff > in ethereal/tcpdump) instead of trailing 0 bits. This is the > way the chip (National Semiconductor DP83815) interprets > auto-padding. Uh, so? Why do you feel that these need to be zeroed? I am not aware of any standard demanding this. I've seen about every type of behavior you can imagine in the extra space, zeros, ones, regular patterns (0x0a0a...), pieces of the last packet (the memory was not cleared), and junk I never figured out. -- Crist J. Clark | cjclark@alum.mit.edu | cjclark@jhu.edu http://people.freebsd.org/~cjc/ | cjc@freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message