Date: Fri, 14 Sep 2001 17:32:49 -0700 (PDT) From: Peter Avalos <pavalos@theshell.com> To: FreeBSD-gnats-submit@freebsd.org Subject: bin/30581: top(1) races when it loses its terminal Message-ID: <200109150032.f8F0Wnk22482@radium.theshell.com>
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>Number: 30581 >Category: bin >Synopsis: top(1) races when it loses its terminal >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Sep 14 17:40:00 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Peter Avalos >Release: FreeBSD 4.4-RC i386 >Organization: none >Environment: System: FreeBSD radium.theshell.com 4.4-RC FreeBSD 4.4-RC #0: Tue Aug 21 16:51:12 PDT 2001 pavalos@radium.theshell.com:/usr/obj/usr/src/sys/RADIUM i386 >Description: top(1) uses up all the cpu it can when it loses its terminal. >How-To-Repeat: Disconnect from an ssh session while running top as root. I can't get this to happen when run as a normal user. Everything working normally (terminal connected): root 23936 1.5 0.2 2096 1312 p8 S+ 5:22PM 0:00.21 top Now disconnect from the ssh session: root 23936 94.8 0.2 2096 1312 p8- R 5:22PM 3:12.76 top >Fix: I'm not sure. It looks like there's some read(2)'s that don't get their return values checked throughout the code, but I'm not sure if that will fix it. >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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