From owner-freebsd-current@FreeBSD.ORG Wed Aug 17 00:23:27 2011 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 60D30106566C; Wed, 17 Aug 2011 00:23:27 +0000 (UTC) (envelope-from peterjeremy@acm.org) Received: from fallbackmx06.syd.optusnet.com.au (fallbackmx06.syd.optusnet.com.au [211.29.132.8]) by mx1.freebsd.org (Postfix) with ESMTP id CCBBC8FC0C; Wed, 17 Aug 2011 00:23:26 +0000 (UTC) Received: from mail26.syd.optusnet.com.au (mail26.syd.optusnet.com.au [211.29.133.167]) by fallbackmx06.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id p7GLxvFC000819; Wed, 17 Aug 2011 07:59:57 +1000 Received: from server.vk2pj.dyndns.org (c220-239-116-103.belrs4.nsw.optusnet.com.au [220.239.116.103]) by mail26.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id p7GLxsPH006396 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 17 Aug 2011 07:59:55 +1000 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.4/8.14.4) with ESMTP id p7GLxr7I035188; Wed, 17 Aug 2011 07:59:53 +1000 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.4/8.14.4/Submit) id p7GLxrAF035187; Wed, 17 Aug 2011 07:59:53 +1000 (EST) (envelope-from peter) Date: Wed, 17 Aug 2011 07:59:53 +1000 From: Peter Jeremy To: freebsd-current@freebsd.org Message-ID: <20110816215953.GB35017@server.vk2pj.dyndns.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="NDin8bjvE/0mNLFQ" Content-Disposition: inline X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.21 (2010-09-15) Cc: pho@freebsd.org Subject: "witness_lock_list_get: witness exhausted" X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Wed, 17 Aug 2011 00:23:27 -0000 --NDin8bjvE/0mNLFQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I'm getting the above message when running Peter Holm's stress test with INCARNATIONS=3D150 on a 16-core sparc. Does this mean LOCK_CHILDCOUNT is too low or does it indicate a leak in witness lock_list_entry's somewhere? The comment on LOCK_CHILDCOUNT indicates it is dimensioned to allow 2048 threads to hold 5 locks each but it's not clear how many threads will get started at a given INCARNATIONS count. --=20 Peter Jeremy --NDin8bjvE/0mNLFQ Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk5K6FkACgkQ/opHv/APuIeAQgCglkSVFOJZ3UYkqhMzkrGsHxuC nlkAnj6oatwGl89WsBE5ufv4mL0IWybk =hyHL -----END PGP SIGNATURE----- --NDin8bjvE/0mNLFQ--