From owner-freebsd-stable Fri Sep 1 9:22:23 2000 Delivered-To: freebsd-stable@freebsd.org Received: from csla.csl.sri.com (csla.csl.sri.com [192.12.33.2]) by hub.freebsd.org (Postfix) with ESMTP id 6AA8237B424 for ; Fri, 1 Sep 2000 09:22:19 -0700 (PDT) Received: from snapdragon.csl.sri.com (snapdragon.csl.sri.com [130.107.18.20]) by csla.csl.sri.com (8.9.1/8.9.1) with ESMTP id JAA29262 for ; Fri, 1 Sep 2000 09:22:13 -0700 (PDT) Message-Id: <200009011622.JAA29262@csla.csl.sri.com> To: freebsd-stable@FreeBSD.ORG Subject: tail -f over NFS in -stable Date: Fri, 01 Sep 2000 09:22:13 -0700 From: Fred Gilham Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In 4.1-stable tail -f over NFS polls rather than blocking. ... kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0x0,0x0,0xbfbff54c,0x1,0x0) = 1 (0x1) read(0x3,0x804d000,0x2000) = 0 (0x0) (on and on) ... This doesn't seem to happen on a local file: ... kqueue() = 4 (0x4) read(0x3,0x804d000,0x2000) = 0 (0x0) kevent(0x4,0xbfbff54c,0x1,0x0,0x0,0xbfbff4e4) = 0 (0x0) read(0x3,0x804d000,0x2000) = 0 (0x0) (pauses here) FreeBSD snapdragon.csl.sri.com 4.1-STABLE FreeBSD 4.1-STABLE #3: Fri Sep 1 08:57:56 PDT 2000 gilham@snapdragon.csl.sri.com:/usr/src/sys/compile/MYKERN i386 -Fred To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message