From owner-freebsd-current@FreeBSD.ORG Sun Feb 8 18:38:22 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 32C1016A4CE for ; Sun, 8 Feb 2004 18:38:22 -0800 (PST) Received: from obsecurity.dyndns.org (adsl-64-165-226-221.dsl.lsan03.pacbell.net [64.165.226.221]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0293343D1D for ; Sun, 8 Feb 2004 18:38:22 -0800 (PST) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 9920466C8E; Sun, 8 Feb 2004 18:38:21 -0800 (PST) Date: Sun, 8 Feb 2004 18:38:21 -0800 From: Kris Kennaway To: current@FreeBSD.org Message-ID: <20040209023821.GA30092@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jI8keyz6grp/JLjh" Content-Disposition: inline User-Agent: Mutt/1.4.1i Subject: Reproducible "calcru: negative time ..." on SMP system X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Feb 2004 02:38:22 -0000 --jI8keyz6grp/JLjh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline I discovered that on a 5.2-BETA SMP system I can cause Feb 8 18:29:32 bento kernel: calcru: negative time of 6816 usec for pid 50286 (grep) Feb 8 18:29:41 bento kernel: calcru: negative time of 7308 usec for pid 51007 (grep) Feb 8 18:30:41 bento kernel: calcru: negative time of 6104 usec for pid 54944 (grep) Feb 8 18:30:42 bento kernel: calcru: negative time of 5933 usec for pid 54962 (grep) by running a shell script that does lots of greps, and leaning on the ^T key in the shell to send the process lots of SIGINFOs. Kris --jI8keyz6grp/JLjh Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAJvKdWry0BWjoQKURAkklAJ9iRmHPfpyeOdjcN5sWGsebo7OkXQCfYBaJ E8DBB+nBofxD3Gpk9sigCik= =xOKU -----END PGP SIGNATURE----- --jI8keyz6grp/JLjh--