From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F688C3F68F for ; Sat, 8 Feb 2020 07:00:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DFDB822B48 for ; Sat, 8 Feb 2020 07:00:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=xenosoft.de header.i=@xenosoft.de header.b="ZyPtJT1l" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727129AbgBHHAC (ORCPT ); Sat, 8 Feb 2020 02:00:02 -0500 Received: from mo4-p01-ob.smtp.rzone.de ([85.215.255.51]:15787 "EHLO mo4-p01-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725890AbgBHHAC (ORCPT ); Sat, 8 Feb 2020 02:00:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1581145200; s=strato-dkim-0002; d=xenosoft.de; h=To:In-Reply-To:Cc:References:Message-Id:Date:Subject:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=v1czFyXK2g0A10HYibevY4qX9AIYXqXeki2CibbFqRE=; b=ZyPtJT1lJT09xPvR7oaK80nNtKDrEyRs/TWjQX8j7Km5BCqXxSJOIhqBHuD9G5uAyF sYfcRgEVzhKaSUBPyhNiMNAORYJVRrVVKhpXzf9cw1dEeCY6rYQuKscmCoOcnRxcP1wD oLE1WHCdqp4PVBL1RXbv/iLv/1PUDBZCLX9Y3Ey5oWtVwXhmdjo/r/yfy98sEySp0St7 qHsPxJz8lNPDG2RU5qudk9NCPd2KJ0SCOcT8BWd4rRx6i+BYdSrL4uBBOWRAtNP1Qy9T kdy2XP0E/qrNOT8Niie6ioJ5gVMOvLFJNdzwXWDlQslbZQz1m2scTdTqruYW+zoShLZd JO0g== X-RZG-AUTH: ":L2QefEenb+UdBJSdRCXu93KJ1bmSGnhMdmOod1DhGN0rBVhd9dFr6Kxrf+5Dj7x4QgaM9fNtIXuaJFHtH13fftKpBh9vXvxFA66d+3MU" X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:8109:89c0:ebfc:b49c:9840:730:839a] by smtp.strato.de (RZmta 46.1.12 AUTH) with ESMTPSA id 40bcf3w186xIhA7 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Sat, 8 Feb 2020 07:59:18 +0100 (CET) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Christian Zigotzky Mime-Version: 1.0 (1.0) Subject: Re: Latest Git kernel: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for device Date: Sat, 8 Feb 2020 07:59:17 +0100 Message-Id: <834D35CA-F0D5-43EC-97B2-2E97B4DA7703@xenosoft.de> References: Cc: Michael Ellerman , Jakub Kicinski , Christophe Leroy , DTML , Darren Stevens , Linux Kernel Mailing List , linuxppc-dev@ozlabs.org, "contact@a-eon.com" , "R.T.Dickinson" , Christoph Hellwig , mad skateman , "netdev@vger.kernel.org" , Christian Zigotzky In-Reply-To: To: Arnd Bergmann X-Mailer: iPhone Mail (17B111) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On 7. Feb 2020, at 18:08, Arnd Bergmann wrote: >=20 > =EF=BB=BFOn Fri, Feb 7, 2020 at 3:34 PM Christian Zigotzky > wrote: >>=20 >> Hello Arnd, >>=20 >> We regularly compile and test Linux kernels every day during the merge >> window. Since Thursday last week we have very high CPU usage because of >> the avahi daemon on our desktop Linux systems (Ubuntu, Debian etc). The >> avahi daemon produces a lot of the following log message. This generates >> high CPU usage. >>=20 >> Error message: avahi-daemon[2410]: ioctl(): Inappropriate ioctl for devic= e >>=20 >> strace /usr/sbin/avahi-daemon: >>=20 >=20 > Thanks a lot for the detailed analysis, with this I immediately saw > what went wrong in my > original commit and I sent you a fix. Please test to ensure that this > correctly addresses > the problem. >=20 > Arnd Hi Arnd, Thanks a lot for your patch! I will test it as soon as possible. Cheers, Christian=