From owner-freebsd-stable@FreeBSD.ORG Thu Dec 15 00:34:08 2005 Return-Path: X-Original-To: stable@freebsd.org Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9D1EF16A41F for ; Thu, 15 Dec 2005 00:34:08 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5D78643D5C for ; Thu, 15 Dec 2005 00:34:08 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id 6A4AB1A3C2C; Wed, 14 Dec 2005 16:34:06 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 266FD54A41; Wed, 14 Dec 2005 19:34:05 -0500 (EST) Date: Wed, 14 Dec 2005 19:34:04 -0500 From: Kris Kennaway To: Kevin Oberman Message-ID: <20051215003403.GA89393@xor.obsecurity.org> References: <43A0A812.1060104@samsco.org> <20051215002618.B4D3B5D07@ptavv.es.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="UugvWAfsgieZRqgk" Content-Disposition: inline In-Reply-To: <20051215002618.B4D3B5D07@ptavv.es.net> User-Agent: Mutt/1.4.2.1i Cc: stable@freebsd.org Subject: Re: Odd performance problems after upgrade from 4.11 to 6.0-Stable X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Dec 2005 00:34:08 -0000 --UugvWAfsgieZRqgk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Dec 14, 2005 at 04:26:18PM -0800, Kevin Oberman wrote: > I am attaching a dmesg. I do have a few of drivers (uhci, pcm, psm, > atkbd0 and ichsmb) that are still marked as GIANT-LOCKED, but I'm not > using the USB very often. And I'm not using pcm or ichsmb during the > dump, either. I think everyone has the mouse and keyboard under GIANT, > but I can't really see those as a problem, either. A bunch of things are sharing interrupts with USB..disable it and see if that helps. Also check vmstat -i to see if some device is storming. If not, turn on MUTEX_PROFILING(9) in your kernel and run the dump (or something faster that also exhibits the problem), then look for what is contending with Giant. Kris --UugvWAfsgieZRqgk Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDoLn6Wry0BWjoQKURAhTOAJ4rE/clAQL1Fh4bbbxI64onRE6A/ACgtyg9 RGwE2WCaU+DE3I3NjwdN9n0= =FpU+ -----END PGP SIGNATURE----- --UugvWAfsgieZRqgk--