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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09109C433EF for ; Mon, 27 Sep 2021 03:19:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6F7660F4B for ; Mon, 27 Sep 2021 03:19:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232461AbhI0DVQ (ORCPT ); Sun, 26 Sep 2021 23:21:16 -0400 Received: from mout.gmx.net ([212.227.17.22]:47709 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230469AbhI0DVP (ORCPT ); Sun, 26 Sep 2021 23:21:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1632712768; bh=PT3s6kMIIZ6ASUkplytyipQbi1kwNnKXq2R1RuNiNg8=; h=X-UI-Sender-Class:Subject:From:To:Cc:Date:In-Reply-To:References; b=D56WfinM3eOQjrvTCw7F/R30GQ343AGq6HwZMXIPx/3QdBzkA1KP9vjdwxjXnXFWA DeIuXjrLQHaJSMQS+OgpAfBVhWVy5CdVIhio8Lkgg7gAJZC8rRY8vbHrej3xqc1tN8 BqyoiIaCM4FG3nLFEFlRo77oq+vRq361YGeXSF/A= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from homer.fritz.box ([185.221.150.235]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MK3Rm-1mH0qU0Mve-00LSi1; Mon, 27 Sep 2021 05:19:28 +0200 Message-ID: <27fee469d80baea697dd672808108cc8fd7ec96c.camel@gmx.de> Subject: Re: [patch] Re: v5.15-rc2-rt3: WARNING: CPU: 0 PID: 12 at ./include/linux/seqlock.h:271 From: Mike Galbraith To: Thomas Gleixner , RT Cc: Sebastian Andrzej Siewior Date: Mon, 27 Sep 2021 05:19:27 +0200 In-Reply-To: <87zgrzbcei.ffs@tglx> References: <20210922210006.rmfpkps6hguyo5ll@linutronix.de> <87zgrzbcei.ffs@tglx> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:VA2Mxa7bWIEb3domSHU3KukOoDwbbj31vXPPp9KE3NQ0t/noZnN Ti0fXExrKf69VWsk+5aGFsiWHpBF5TGLn+pSxbSx4jMvQ3g8jYV95KmcmQqpdROqPRTGlyA IlNrO/SBPzbSrtaGJScCd3Cw+zpT2Aa4sVF7+/DmkxpwA/uy7/nXZAFhwr8pg8G/o84Jxqp Yxgitx6qTp8BLRclBJmZw== X-UI-Out-Filterresults: notjunk:1;V03:K0:FFh5izemXUI=:OGzmsPRy8cUCtrcMKK2NmV GjM7atN5unO58kwiZjiqqEBs/USBItEff7i+ySSRpAMAA1WzfGkVrCHx50vv7x3ktYe23IaYM xHSVsNt4V5NVcv+1/ZAeqcIZozPsqBTRbC0yJnTHSAQx/+ihHGN0qxrvWY9AfVHUSgUepYLio ZUBT+Z6xowFskkUNDH5P0teAORPV+WLX0JAGbBMzL1RX6ZEW6/Dys7s0F/UnTYNj5n2U2vP7F l4jOgqfqDwjpailNBbz6Tvcbq3fTalNKiI4l8CrEOzsiE+9yOI23j10aIjg3FYKdP+ZntXtgl 6oC8APKzaVedbpmNb1AGbi8QkHPC7JlWFPMhYE1uXqOX8bGhWEpZvSw/OCeyi/KG99R61U3W1 92J3lInNb86ifZmo4cWjt8OBZ95vSyvMG3D85U6q3UwmOwpXO7oZXTYNW4qApfDhueipk86hm 4TvSjzr0QIk/l79Kd5WZdN18McnNiv+5zbJoupO38hA45X8iucm4Va19hjWhQDe6NbhcTzBx/ jXktncmriw9ZRgdyhSrn8ub0m6xX0xcnUd2k7vlW11NAg1S2y+4Dwp2CV1LKscJZt6W8hljde ZpR5e2IolBRi/LGmjhHUJHd4+06bAma2+72I6QAcoCpMIJuwetZAEDgOVWqr4z0f6fIn5Ay/+ Wt+KDH1JflCgXZ1ysCzSXsFEF7ZuwMeOxTdpiPvZ3hTFVbcJoddXds5dNGUwFSDKTHs52JlYt onY0NmbOo903XoRGvYgpVnT9AW1ckbMYuNXyoc4R32lfJL8aeZzvajhEjLCeGLNJPdDZApQJZ sqFPE1gzLetT6zukb1DgPNyesgTp2TQy7xfji+7R9srXPx65RqCZXfefrybrbwztUCfmWHQ7y eYJiFG7RHLwND8/WzICKoN3bNvwBNAVK9Lft2i3Awu1WXj1nvOzpEw1Dnx7UbQQCT6iL4mJIz 3HIjxTAvmGVCk3UHMrkZiQe4nRuCtyn2LpCF2chR9AKRx99B/ilIHe4Af3uhHEgozwLgLvR0i kGfeKIAAynQelB01nZOQQA4FZv80u5sCLLXGQNhVr8HyJsZNXVgKB5mH0zIaiMRCEu2y8rbdv acQ/++KGCUUYes= Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org On Sun, 2021-09-26 at 17:10 +0200, Thomas Gleixner wrote: > > That sequence count is protected by brmctx->br->multicast_lock, but > seqcount_init() does not associate the lock. > > Untested below should cure it properly. Yup, it did. Hrmph, there were even free samples in older trees.. that live right in front of me. Bugger... oh well, bring it on trivial seqcount bugs, ya barely scratched me! :) -Mike