From owner-freebsd-stable@freebsd.org Thu Apr 6 10:16:53 2017 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B6B00D2FE61 for ; Thu, 6 Apr 2017 10:16:53 +0000 (UTC) (envelope-from kami@freebsd.org) Received: from bsdforen.de (bsdforen.de [82.193.243.115]) by mx1.freebsd.org (Postfix) with ESMTP id 81A6BCAB for ; Thu, 6 Apr 2017 10:16:53 +0000 (UTC) (envelope-from kami@freebsd.org) Received: from localhost (iz-aix-213a.HS-Karlsruhe.DE [193.196.64.213]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bsdforen.de (Postfix) with ESMTPSA id C0FF292E4B for ; Thu, 6 Apr 2017 12:16:45 +0200 (CEST) Date: Thu, 6 Apr 2017 12:16:35 +0200 From: Dominic Fandrey To: freebsd-stable@freebsd.org Subject: Unsupported USB BT device causes high interrupt load Message-Id: <20170406121635.99a513360faaf2f40992fb8a@freebsd.org> Organization: FreeBSD X-Mailer: Sylpheed 3.5.1 Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA512"; boundary="Signature=_Thu__6_Apr_2017_12_16_37_+0200_Yjm8XMg2_01XfzjD" X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 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, 06 Apr 2017 10:16:53 -0000 --Signature=_Thu__6_Apr_2017_12_16_37_+0200_Yjm8XMg2_01XfzjD Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I have an Interrupt load of 2000 interrupts/s from xhci0. As the culprit I have identified the following device: ugen0.6: at usbus0, cfg=3D255 md=3DHOST spd= =3DFULL (12Mbps) pwr=3DON (100mA) The impression I have from googling this is that it's an unsupported BT device sitting on board of my Intel Wireless AC 7260 card (I also have an unsupported SD/MMC card reader sitting on the mainboard). usbconfig -d 0.6 power_off Ends the interrupt spree. I'm running FreeBSD 11.0-STABLE #1 r316490 amd64. --=20 A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?=20 --Signature=_Thu__6_Apr_2017_12_16_37_+0200_Yjm8XMg2_01XfzjD Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEEfYhGEP+7uobxe8A3b/BdaakqWdsFAljmFYVfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDdE ODg0NjEwRkZCQkJBODZGMTdCQzAzNzZGRjA1RDY5QTkyQTU5REIACgkQb/Bdaakq WduDrAgAp32pQ0LKDvud5PP7CJKRCH0Nqw4NDbriizj7VVC7xguOAtqnSROTOT+Z 9GF7gCWa9OEmBYyNQOccBBLDyjhhApx4slsTtel1QsKJsTAlNqqFX8X6XvK01lUF qpeUCC1whI2FAe5xgWDKlRMJKw6WP/uTNnL6Ic93s0L3hyws/BIF+ClsCtbbQ09q lbwXgPIO+hzYlGNhzCqYkeMYVEpHxB1bGWQJemDWs3EIvWGUKTiUjvciJMkY0a14 OaG4zRzkUTQrcuVdZOzTorTz/piAyH5ymD++aVLtC1/ziM/mMPp1Hx5LGxdhotp5 f4EYEgxJ5DLpatXdiVJyxHSLf4EtyA== =KOsc -----END PGP SIGNATURE----- --Signature=_Thu__6_Apr_2017_12_16_37_+0200_Yjm8XMg2_01XfzjD--