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=-4.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 F327DC433E9 for ; Thu, 18 Feb 2021 17:48:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBC9B64EBB for ; Thu, 18 Feb 2021 17:48:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234690AbhBRRsE (ORCPT ); Thu, 18 Feb 2021 12:48:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231840AbhBRRLW (ORCPT ); Thu, 18 Feb 2021 12:11:22 -0500 Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC475C0613D6 for ; Thu, 18 Feb 2021 09:10:41 -0800 (PST) Received: by mail-ed1-x52b.google.com with SMTP id q10so5281243edt.7 for ; Thu, 18 Feb 2021 09:10:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=MfpAGWNr+JjuLKBAFMfKoelww8BJYjLy5AHrwTlW5To=; b=q6snTKrhJsOeTWIp3w3HTPVaMroNCKuhKIJzsY625JTv9RtaONmIYUoHPvSI+ffMV3 h9e9yrpYp5jWs6Sw1aQ+THXSVqS7xZON2/aAMicEH3QyTv4GWGAi/Wswfz45yo4jSLrt SHLu/MIuVgXj2Rqa+03iHY114vjHYQizHBf1LQf/9WWOVmhjwaUqbEpvhTdk6pSP/5Dq jN++SBXC8x7VwIZhrg3iORafpXCmxdwbA922RJuW3chVyute/udjyA4FX4ermRE0ERSC 73IpMElce6A0YC7QPVPRhxAazknbf6LzZBZSKmI0Q/GGZ6lP6/G7F1nandq3q1IE/PQ/ K8wg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=MfpAGWNr+JjuLKBAFMfKoelww8BJYjLy5AHrwTlW5To=; b=UtGf356AW1EqEBJI4gciLrhpSL4WIa48psDLG1bR8L4WwC/pEPGENJI3tek9WU1qi8 w1IWVM+apz4QX1zRZEe2U0PZ/wNWeXKI6wheHFFhhuFJI4ZfB5YoMKiozFvyZb9Na1AF 4dGLVPZcBcJW5A+d6iv41YLEp98fDwvGszKwe5DzFhF4sNYDnz4BQ7xgPd/Y5gRCQVE0 s14o6xd5H6NRB9wnpm6MfJvwGZs2vgGEtqlv04/8oxbu06Cpc0f4TF2Wd44qqWjfIQuI sv+TxXOobPKxdlJj0o6ZQlHq46qs++WZCmKBMyiSB7GEHMXbmp0ZhnAbQgmUfipHXDur 5m/A== X-Gm-Message-State: AOAM530qFgEvcV1wvGXlbPRSe28/oQ9DqfKdF1KX+dE4H+JmU4ayYUb5 ZYuyY+TB0bIRyfcPBrGhiBY= X-Google-Smtp-Source: ABdhPJzQTlKe4YeqkwTcSyeWd31XyMQ3vD9CTsazjr43PAffyFwGydmYpDqCIF24Y3H8jZiIguTIfA== X-Received: by 2002:a50:d714:: with SMTP id t20mr5026604edi.65.1613668240365; Thu, 18 Feb 2021 09:10:40 -0800 (PST) Received: from [192.168.0.104] ([77.124.112.241]) by smtp.gmail.com with ESMTPSA id da12sm506852edb.52.2021.02.18.09.10.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 18 Feb 2021 09:10:40 -0800 (PST) Subject: Re: bug report: WARNING in bonding To: Ido Schimmel , "netdev@vger.kernel.org" Cc: David Miller , Jakub Kicinski , Jay Vosburgh , Veaceslav Falico , Andy Gospodarek , Moshe Shemesh , Itay Aveksis , Ran Rozenstein , Tariq Toukan References: <20201112154627.GA2138135@shredder> <20201112163307.GA2140537@shredder> From: Tariq Toukan Message-ID: <67b689d8-419b-78ec-0286-0983337ca3c1@gmail.com> Date: Thu, 18 Feb 2021 19:10:35 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: <20201112163307.GA2140537@shredder> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 11/12/2020 6:33 PM, Ido Schimmel wrote: > On Thu, Nov 12, 2020 at 05:54:30PM +0200, Tariq Toukan wrote: >> >> >> On 11/12/2020 5:46 PM, Ido Schimmel wrote: >>> On Thu, Nov 12, 2020 at 05:38:44PM +0200, Tariq Toukan wrote: >>>> Hi all, >>>> >>>> In the past ~2-3 weeks, we started seeing the following WARNING and traces >>>> in our regression testing systems, almost every day. >>>> >>>> Reproduction is not stable, and not isolated to a specific test, so it's >>>> hard to bisect. >>>> >>>> Any idea what could this be? >>>> Or what is the suspected offending patch? >>> >>> Do you have commit f8e48a3dca06 ("lockdep: Fix preemption WARN for spurious >>> IRQ-enable")? I think it fixed the issue for me >>> >> >> We do have it. Yet issue still exists. > > I checked my mail and apparently we stopped seeing this warning after I > fixed a lockdep issue (spin_lock() vs spin_lock_bh()) in a yet to be > submitted patch. Do you see any other lockdep warnings in the log > besides this one? Maybe something in mlx4/5 which is why syzbot didn't > hit it? > Hi, Issue still reproduces. Even in GA kernel. It is always preceded by some other lockdep warning. So to get the reproduction: - First, have any lockdep issue. - Then, open bond interface. Any idea what could it be? We'll share any new info as soon as we have it. Regards, Tariq