From owner-freebsd-current Fri Dec 4 11:53:17 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA12883 for freebsd-current-outgoing; Fri, 4 Dec 1998 11:53:17 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id LAA12878 for ; Fri, 4 Dec 1998 11:53:15 -0800 (PST) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.1/8.9.1) id LAA16925; Fri, 4 Dec 1998 11:52:56 -0800 (PST) (envelope-from dillon) Date: Fri, 4 Dec 1998 11:52:56 -0800 (PST) From: Matthew Dillon Message-Id: <199812041952.LAA16925@apollo.backplane.com> To: asami@cs.berkeley.edu (Satoshi Asami) Cc: current@FreeBSD.ORG Subject: Re: weird rsh hang References: <199812040954.BAA23296@silvia.hip.berkeley.edu> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG :Hi, : :I'm trying some parallel gzip's by trying a : : rsh mach1 cat file | gzip | rsh mach1 cat \> file.newname : :For some reason, this is turning up a large number of hung connections. :.. :=== : :I get about 10 of these for 1,500 connections over 3 machines. Any ideas? : :Satoshi Try rsh mach1 -n cat file for the first rsh. Is this with -current or with -stable? There was an old -stable that had a bug with the tcp window scaling that would get into a permanent blocking situation for window sizes of 65536 or greater, but the bug was fixed months ago as far as I know. I'll check. It also would not surprise me at all if a bug in rsh were found. Track down why the 'base' rsh command is stuck in select... is it waiting to read from the socket or to write to the pipe? It could be waiting to read from stdin since you didn't use the -n option. 0 5391 5369 188 2 0 780 488 select I ?? 0:00.02 rsh m16 cat /usr/local/packa... -Matt :To Unsubscribe: send mail to majordomo@FreeBSD.org :with "unsubscribe freebsd-current" in the body of the message : Matthew Dillon Engineering, HiWay Technologies, Inc. & BEST Internet Communications & God knows what else. (Please include original email in any response) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message