From owner-freebsd-current@FreeBSD.ORG Thu Nov 24 08:13:04 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org 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 E0D3816A41F for ; Thu, 24 Nov 2005 08:13:04 +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 D081343DA6 for ; Thu, 24 Nov 2005 08:11:42 +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 071B01A3C1A; Thu, 24 Nov 2005 00:11:41 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id DCBEE515B3; Thu, 24 Nov 2005 03:11:39 -0500 (EST) Date: Thu, 24 Nov 2005 03:11:39 -0500 From: Kris Kennaway To: Massimo Lusetti Message-ID: <20051124081139.GA17568@xor.obsecurity.org> References: <002801c5f081$f01ff200$642a15ac@smiley> <4384F807.6050105@samsco.org> <1132819355.4307.1.camel@massimo.datacode.it> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="FCuugMFkClbJLl1L" Content-Disposition: inline In-Reply-To: <1132819355.4307.1.camel@massimo.datacode.it> User-Agent: Mutt/1.4.2.1i Cc: 'Kris Kennaway' , Darren Pilgrim , freebsd-current@freebsd.org Subject: Re: em interrupt storm 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: Thu, 24 Nov 2005 08:13:05 -0000 --FCuugMFkClbJLl1L Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 24, 2005 at 09:02:35AM +0100, Massimo Lusetti wrote: > On Wed, 2005-11-23 at 16:15 -0700, Scott Long wrote: >=20 > > What I've done is vacated the use of irq16 on my machines by disabling > > things like usb and if_em. This isn't ideal, of course. The storming > > doesn't usually cause a problem, but it can affect performance, > > especially if USB is involved. I only do this when I'm testing > > performance, otherwise I leave everything enabled and don't worry about > > it. 4.x won't see this problem since it handles interrupts in the > > more traditional way, but using 4.x also has many other tradeoffs that > > may or may not be worthwhile. >=20 > That's good to hear. Thanks for pointing it out Scott. As I mentioned in another reply, I do see a similar interrupt storm on the same hardware running 4.11. Kris --FCuugMFkClbJLl1L Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDhXW7Wry0BWjoQKURAmo8AKDBo8tlxnDNAy8IO6dKWhzmyDmSggCfZJKe zLUVh2lhNE8mTJILt2trpJA= =xNBq -----END PGP SIGNATURE----- --FCuugMFkClbJLl1L--