Date: Mon, 12 Aug 2002 11:50:02 -0700 (PDT) From: Garrett Wollman <wollman@lcs.mit.edu> To: freebsd-bugs@FreeBSD.org Subject: kern/41552: TCP timers' sysctl's overflow Message-ID: <200208121850.g7CIo2X1082057@freefall.freebsd.org>
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The following reply was made to PR kern/41552; it has been noted by GNATS. From: Garrett Wollman <wollman@lcs.mit.edu> To: "G.P. de Boer" <g.p.de.boer@st.hanze.nl> Cc: freebsd-gnats-submit@FreeBSD.ORG Subject: kern/41552: TCP timers' sysctl's overflow Date: Mon, 12 Aug 2002 14:40:57 -0400 (EDT) <<On Sun, 11 Aug 2002 10:33:12 -0700 (PDT), "G.P. de Boer" <g.p.de.boer@st.hanze.nl> said: > When setting syscontrols like net.inet.tcp.keepidle on a system with > clocktick-granularity above 1000 Hz, there's an overflow triggered, > resulting in at least inaccurate, but sometimes negative TCP > timeouts. 1 kHz timers are just barely within spec for TCP (using the 32-bit fields in RFC 1323). -GAWollman To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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