From owner-freebsd-usb@FreeBSD.ORG Sat Jan 10 15:53:52 2015 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id CC851E0F for ; Sat, 10 Jan 2015 15:53:52 +0000 (UTC) Received: from mail-we0-x22b.google.com (mail-we0-x22b.google.com [IPv6:2a00:1450:400c:c03::22b]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6057C289 for ; Sat, 10 Jan 2015 15:53:52 +0000 (UTC) Received: by mail-we0-f171.google.com with SMTP id u56so12576311wes.2 for ; Sat, 10 Jan 2015 07:53:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=DX+oadWWvBavOE1MH82kWB8UuaS23kqvz62j1iCGesQ=; b=Z+UGBDeSq8Qzc9MDchDO7lumebvS4M4bWmQzjPFNkhKnfmpxclqMllWSHdx238aUZ/ sV/AubxeaFcJaf3eogirgO1NpaiitbNZvgri1K/UJKDAfv5E/clxqNEfhRjPLo9J/Sae uTBOcfBar9a9ZPEWozox23QKaPYHtKQIFfDWmQQ9BDdRTg0ejQEiUcZNPpFye0MJETDE 2yLFaLY2TtGgl4Epaot+Kd09w4zQZFC3QufqSKalH+7ar2paC/2XwbJX4JL/LM4GFDlG 92n31L/orsfFiGJlw3Efki7On1cYiuIUUQBcgcWXkSulUP7U/zBS1Tnw59YeGRYM3vNy STkg== MIME-Version: 1.0 X-Received: by 10.194.5.37 with SMTP id p5mr15055390wjp.20.1420905230896; Sat, 10 Jan 2015 07:53:50 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.216.41.136 with HTTP; Sat, 10 Jan 2015 07:53:50 -0800 (PST) In-Reply-To: <54B11299.6040909@selasky.org> References: <54B11299.6040909@selasky.org> Date: Sat, 10 Jan 2015 07:53:50 -0800 X-Google-Sender-Auth: JLud8mO0OZmPbS5yeAO2BNaPTaY Message-ID: Subject: Re: Lynx Point USB - large amount of interrupts (300k / second) From: Adrian Chadd To: Hans Petter Selasky Content-Type: text/plain; charset=UTF-8 Cc: "freebsd-usb@freebsd.org" X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Jan 2015 15:53:52 -0000 Real interrupt: frindex=0x000012f6 ctrdsegm=0x00000000 periodic=0xda3cf000 async=0xda3d1000 port 1 status=0x00001005 port 2 status=0x00001000 ehci_interrupt: real interrupt cmd=0x00010031 EHCI_CMD_ITC_1 EHCI_CMD_ASE EHCI_CMD_PSE EHCI_CMD_RS sts=0x0000c008 EHCI_STS_ASS EHCI_STS_PSS EHCI_STS_FLR ien=0x00000037 -adrian On 10 January 2015 at 03:52, Hans Petter Selasky wrote: > On 01/10/15 00:37, Daniel Kolesa wrote: >> >> 2015-01-09 23:26 GMT+00:00 Daniel Kolesa : >>> >>> 2015-01-09 20:24 GMT+00:00 Adrian Chadd : >>>> >>>> hi, >>>> >>>> I have a haswell desktop box at home: >>>> >>>> CPU: Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz (3192.67-MHz K8-class CPU) >>>> >>>> With lynx point USB: >>> >>> >>> Also Haswell here, but with H97 chipset, which means Wildcat Point >>> USB. Not getting the issue. >>> >>>> >>>> adrian@test-2:~ % dmesg | grep ehci >>>> ehci0: mem >>>> 0xf7f1c000-0xf7f1c3ff irq 16 at device 26.0 on pci0 >>>> usbus1 on ehci0 >>>> ehci1: mem >>>> 0xf7f1b000-0xf7f1b3ff irq 23 at device 29.0 on pci0 >>>> usbus2 on ehci1 >>>> > > Hi, > > You can easily check who's generating the interrupts by setting: > > hw.usb.ehci.debug=16 > hw.usb.xhci.debug=16 > > If the interrupt status is all-zero, then it is a bug somewhere else! > > --HPS >