From owner-freebsd-usb@FreeBSD.ORG Wed Sep 18 07:50:01 2013 Return-Path: Delivered-To: freebsd-usb@smarthost.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id E8980478 for ; Wed, 18 Sep 2013 07:50:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id BBD5C24E4 for ; Wed, 18 Sep 2013 07:50:01 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.7/8.14.7) with ESMTP id r8I7o1hM029710 for ; Wed, 18 Sep 2013 07:50:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.7/8.14.7/Submit) id r8I7o1KL029703; Wed, 18 Sep 2013 07:50:01 GMT (envelope-from gnats) Date: Wed, 18 Sep 2013 07:50:01 GMT Message-Id: <201309180750.r8I7o1KL029703@freefall.freebsd.org> To: freebsd-usb@FreeBSD.org Cc: From: Andreas Gustafsson Subject: Re: usb/156596: [ehci] Extremely high interrupt rate on ehci/uhci IRQ16 80% cpu utilization on CPU0 X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: Andreas Gustafsson List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Sep 2013 07:50:02 -0000 The following reply was made to PR usb/156596; it has been noted by GNATS. From: Andreas Gustafsson To: bug-followup@FreeBSD.org Cc: Subject: Re: usb/156596: [ehci] Extremely high interrupt rate on ehci/uhci IRQ16 80% cpu utilization on CPU0 Date: Wed, 18 Sep 2013 10:33:22 +0300 FWIW, this problem also affects NetBSD, see http://gnats.netbsd.org/46596 . -- Andreas Gustafsson, gson@gson.org