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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD004C00140 for ; Sun, 31 Jul 2022 10:09:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232696AbiGaKJV (ORCPT ); Sun, 31 Jul 2022 06:09:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231267AbiGaKJT (ORCPT ); Sun, 31 Jul 2022 06:09:19 -0400 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 002CDBC03 for ; Sun, 31 Jul 2022 03:09:16 -0700 (PDT) Received: by mail-il1-f197.google.com with SMTP id j5-20020a056e02218500b002de1cf2347bso3393838ila.2 for ; Sun, 31 Jul 2022 03:09:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc; bh=fB4ZFQbGOh22CQyNCxnbUuNY0WDSjtBE2vSyeSW5G+c=; b=sE2uPhELtv2Vtn45rgeS2jLlqJkVef3d5XiUqw3yhmDyAlvOOIMCqJtKnKsy/SsB+V 3H4xuCGva/SqhVhsNHLeFkXGjeZmejLIk1/Z/8ZV8LTU7hrG6R0xYgmD0Hd+9wZQX3jC lH04JAMMGLXHLgkzBCyDbeDHRBUaYPgW7cjpJUkWlUKRgTJ05tLPqbQlSXtJjVbO2FJo stVwE/LQPy68RKL0OGkhiRnSYDXYGsAtCTBpUoNb/g1Ula5L0FsXW81nmmBQcWENujzC UdIAU+ESzMW6CdkUEEmI9P2P5I/lmKMr6TDME/WyG5CWiRqNylwkc9MW6Cz77Abqr1Kl +IJA== X-Gm-Message-State: ACgBeo2jXYtaTyd7nIlGbocuXQJgd2CjgV14+gxsVopz5h/j/4+BcPyw z2vZnDd58mBuE5AA8oCexd7vB//f0uLtNV3Y/b658CTZCm6n X-Google-Smtp-Source: AA6agR4YNsdIXwW4E3ZVaopPhSjeQnRfxTz3O+lMbX2712oNCcbItZdONhSQyTHdUx3uQMh8IJ+Ty6Fch6q0b1TKD2saTWINeznW MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1bcc:b0:2de:67ee:c89f with SMTP id x12-20020a056e021bcc00b002de67eec89fmr1664162ilv.169.1659262156350; Sun, 31 Jul 2022 03:09:16 -0700 (PDT) Date: Sun, 31 Jul 2022 03:09:16 -0700 In-Reply-To: <20220731094805.847-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006b309205e51713c7@google.com> Subject: Re: [syzbot] INFO: rcu detected stall in gc_worker (3) From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (1 GPs behind) idle=cad/1/0x4000000000000000 softirq=7023/7025 fqs=2 (detected by 1, t=10502 jiffies, g=7257, q=133) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4073 Comm: syz-executor.0 Not tainted 5.17.0-rc6-next-20220303-syzkaller-dirty #0 Harclient_loop: send disconnect: Broken pipe Tested on: commit: 91265a6d Add linux-next specific files for 20220303 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git console output: https://syzkaller.appspot.com/x/log.txt?x=166fe82e080000 kernel config: https://syzkaller.appspot.com/x/.config?x=617f79440a35673a dashboard link: https://syzkaller.appspot.com/bug?extid=eec403943a2a2455adaa compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=15c240c1080000