Date: Mon, 15 Nov 1999 16:24:32 -0500 (Eastern Standard Time) From: Bruce Campbell <bruce@engmail.uwaterloo.ca> To: freebsd-questions@FreeBSD.ORG Subject: run away "more" processes with /bin/sh on FreeBSD 3.3 Message-ID: <Pine.WNT.4.10.9911151614150.-896591@mantis.uwaterloo.ca>
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Hi, We are heavy duty FreeBSD users, our main e-mail server for 8,000 users is handled by FreeBSD. After upgrading our mail server from 3.1 to 3.3, we noticed users who have a login shell of /bin/sh with runaway "more" processes. We can recreate the problem on a separate box... - make the login shell on a user "/bin/sh" - send the user an e-mail message of 50 lines or so - login to the userid - run "mail" and look at the message. When it displays one screen, just walk away. - from root, kill the "telnetd" process of the user. - run "top" and see "more" hogging CPU. The problem does not happen on 3.1 The problem does not happen with login shell /bin/csh The problem occurs "naturally" on users who have logged in from far away, and lose their connection somehow. The keepalive eventually kills their inactive telnetd, and then "more" starts burning. We are, of course, exploring the possibility that we have caused the problem with a config file, kernel setting, etc. ------------------------------------------------------------------------------ Bruce Campbell Engineering Computing CPH-2374 University of Waterloo (519) 885-1211 ext 5889 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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