From owner-freebsd-hackers@FreeBSD.ORG Thu Feb 23 18:23:13 2012 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 89561106566B for ; Thu, 23 Feb 2012 18:23:13 +0000 (UTC) (envelope-from vijju.singh@gmail.com) Received: from mail-vw0-f54.google.com (mail-vw0-f54.google.com [209.85.212.54]) by mx1.freebsd.org (Postfix) with ESMTP id 3EDAB8FC08 for ; Thu, 23 Feb 2012 18:23:12 +0000 (UTC) Received: by vbbfa15 with SMTP id fa15so1456068vbb.13 for ; Thu, 23 Feb 2012 10:23:12 -0800 (PST) Received-SPF: pass (google.com: domain of vijju.singh@gmail.com designates 10.220.151.5 as permitted sender) client-ip=10.220.151.5; Authentication-Results: mr.google.com; spf=pass (google.com: domain of vijju.singh@gmail.com designates 10.220.151.5 as permitted sender) smtp.mail=vijju.singh@gmail.com; dkim=pass header.i=vijju.singh@gmail.com Received: from mr.google.com ([10.220.151.5]) by 10.220.151.5 with SMTP id a5mr1758366vcw.8.1330021392558 (num_hops = 1); Thu, 23 Feb 2012 10:23:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=Az/YaUB5sKzjta5yNZctQnrkCkPLxbH0Nd1EhPeKhro=; b=e2u+ZU8JWubUHjH1CZDzgN03YQJnxdwxub3zMDPSGQCj7AC5vfrsrSba7j4VnpKMDa 5xYZf4I+621VtPz58HCz96ERxIeqDuQAbuuJsSJJeaiahnB2s6lxp4hdR0arVLRO0sBL WmIEVZQXp8C3VszyJ2vtmEF6A62bXKTAJlkCM= MIME-Version: 1.0 Received: by 10.220.151.5 with SMTP id a5mr1403025vcw.8.1330019570459; Thu, 23 Feb 2012 09:52:50 -0800 (PST) Received: by 10.220.179.131 with HTTP; Thu, 23 Feb 2012 09:52:50 -0800 (PST) Date: Thu, 23 Feb 2012 09:52:50 -0800 Message-ID: From: Vijay Singh To: hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Cc: Subject: USB issue on 8.2 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Feb 2012 18:23:13 -0000 Hi hackers. I am seeing an issue where the USB controller is generating a large number of interrupts. last pid: 6639; load averages: 1.39, 1.48, 2.46 up 0+01:07:14 12:35:05 2590 processes:9 running, 462 sleeping, 3 zombie, 2116 waiting CPU: 0.2% user, 0.0% nice, 11.5% system, 10.6% interrupt, 77.7% idle Mem: 277M Active, 425M Inact, 241M Wired, 2704K Cache, 7488K Buf, 1017M Free Swap: 1024M Total, 1024M Free PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND 10 root 171 ki31 0K 64K RUN 3 34:37 89.40% {idle: cpu3} 10 root 171 ki31 0K 64K CPU2 2 33:56 85.94% {idle: cpu2} 10 root 171 ki31 0K 64K CPU0 0 37:20 76.27% {idle: cpu0} 10 root 171 ki31 0K 64K RUN 1 25:09 55.27% {idle: cpu1} 11 root -64 - 0K 480K WAIT 1 14:40 33.40% {irq16: ehci1} interrupt total rate irq16: ehci1 488177801 114166 Is this known? Any patches I can test? -vijay