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 51203C636CC for ; Sun, 5 Feb 2023 10:10:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229521AbjBEKKX (ORCPT ); Sun, 5 Feb 2023 05:10:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229488AbjBEKKV (ORCPT ); Sun, 5 Feb 2023 05:10:21 -0500 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4DDBB1BAD1 for ; Sun, 5 Feb 2023 02:10:20 -0800 (PST) Received: by mail-il1-f199.google.com with SMTP id j7-20020a056e02014700b00310d217f518so6139943ilr.2 for ; Sun, 05 Feb 2023 02:10:20 -0800 (PST) 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:subject:date:message-id:reply-to; bh=M4+ikb5mvFAOATRtrZy/TmgzrLqQGI0z2J6tXsCw82c=; b=s91PfyRPTJ5J93NbbCjn7NjqcHSzbneO+tN8LBmBuSwRRwHlE07pPnnSP11igFUVCw NxNykDhQewr0zsGIDK+Kaz1lQHVW7ttn5PI0544lidY5gVMASUbrMtV5lTfPHaOXGfzf gnI+ZSJG3dJ8YQ8lHRiuAUJTf92P+9FDyh+B1dzKOBp/WlE02bbFR1cIn3PVsiOeONW8 6QqYxJMTWJIrxSW6WMrljv1yjDJsskrVX3pQobHX9RpQUWPr+NaKUzIM62YjopytG3OT pE+b2YSp4MqFPSiNCtHZduo3NCwg1hkF1vMwAHxQXfvAQsGyzeQVLRYW/N/YS0AeNn1l zqVQ== X-Gm-Message-State: AO0yUKWYE2iZ79kr52hQd12PvA0Sq2LtauQt9R7iVbMvcZpQnUppaybX ZsUv3QxeOGBUYOp7mnLymyLc5MHa5G5XIlhW22Ym/Pr49+iZ X-Google-Smtp-Source: AK7set/qeu8kgXnVaRw+s+mNEMfx1nlVWdrlZfgVUrxzhv+imDXoIO5CAGN2nZlfPyhAnr0CKvH9VGTJNPoBcTXtzxpEbiMAK961 MIME-Version: 1.0 X-Received: by 2002:a92:7414:0:b0:313:bfa3:84f5 with SMTP id p20-20020a927414000000b00313bfa384f5mr187359ilc.122.1675591819686; Sun, 05 Feb 2023 02:10:19 -0800 (PST) Date: Sun, 05 Feb 2023 02:10:19 -0800 In-Reply-To: <20230205093941.1451-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000033799605f3f11ffb@google.com> Subject: Re: [syzbot] WARNING in kernfs_get (4) 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 expedited stalls on CPUs/tasks: { P5555 } 2647 jiffies s: 2837 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: 837c07cf Merge tag 'powerpc-6.2-4' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master console output: https://syzkaller.appspot.com/x/log.txt?x=113f785d480000 kernel config: https://syzkaller.appspot.com/x/.config?x=723d250bd16cf869 dashboard link: https://syzkaller.appspot.com/bug?extid=9be7b6c4b696be5d83ef 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=1369cb27480000