Date: Wed, 4 Feb 2009 18:51:02 +0200 (EET) From: Diomidis Spinellis <dds@FreeBSD.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/131369: truss -f fails to attach to child processes Message-ID: <200902041651.n14Gp2TG001267@icarian.dmst.aueb.gr> Resent-Message-ID: <200902041710.n14HA13p049649@freefall.freebsd.org>
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>Number: 131369 >Category: bin >Synopsis: truss -f fails to attach to child processes >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Feb 04 17:10:01 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Diomidis Spinellis >Release: FreeBSD 8.0-CURRENT i386 >Organization: AUEB >Environment: System: FreeBSD icarian.dmst.aueb.gr 8.0-CURRENT FreeBSD 8.0-CURRENT #4 r188112M: Wed Feb 4 10:58:38 EET 2009 dds@icarian.dmst.aueb.gr:/usr/obj/usr/home/dds/src/fbsd-svn/base/head/sys/ICARIAN i386 >Description: The truss(1) command provides a -f flag to trace child processes of the process being traced. This doesn't work: the child process isn't traced and a child of truss(1) is left spinning in the background. If the command is short-lived, then no child truss is left behind, and truss reports: truss: can not attach to target process: No such process >How-To-Repeat: truss -f sh -c 'jot 100000 >foo' truss -f sh -c /bin/echo hi >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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