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 384BDC433FE for ; Tue, 29 Nov 2022 07:00:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229763AbiK2HAe (ORCPT ); Tue, 29 Nov 2022 02:00:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229449AbiK2HAc (ORCPT ); Tue, 29 Nov 2022 02:00:32 -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 AF2A824966 for ; Mon, 28 Nov 2022 23:00:31 -0800 (PST) Received: by mail-il1-f199.google.com with SMTP id y12-20020a056e021bec00b00302a7d5bc83so11247146ilv.16 for ; Mon, 28 Nov 2022 23:00:31 -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=7iQRdFpIS1RfFuh0nwKFpnKn/nvgkEHQboePIax9ds0=; b=xzCeFxf+eoKEx9zL2raKfz8Yc0F3zvE2zf3jYNtYaA0yB+SJ/Tnt13fXBYueMuG9y2 S8wJaxt3NjoBHvqwZ3Gbc0k4cF4tgoIJa77AYOsskCDkqlT+BAH/7bKMN6Iyg1sf4I7R KPQoKkvFOPqRVVvEWKlwzuFdmrk7G1X5J1jQgvOR/r2O0ki6nYQDfjg+VDHMzH3mVaL9 DNyAvbNML7CtzwzV089fPneG1uZkpswk9O9gNITKqa7ml3sfzUydZu+HpKn3/l7t69LE rmJKY+46GQ4VH4c8lH95awb6ELnagomc3SCKBUul9G7t4hCeJCk0XE5ajAL1WQ+1EBgJ LCKw== X-Gm-Message-State: ANoB5plTw9Lh/YOWcstMPvrbSb6LyfmjefM3OncnMk8wJwO0J+CjnUjr UqlhwURsEaAJyah/0homcKb6XxMNOi8wFQHq2ZgOOcVhf2pd X-Google-Smtp-Source: AA0mqf7L5tGNEB/wdMyN5dUSQ/nCex/PwKjsXOFtsooc2Q9KLlHTnMhb7qiSJSb6WAGyPJm2np6hBJa3rinkAUx8kXoKhyj6JJRY MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1251:b0:303:1c15:2818 with SMTP id j17-20020a056e02125100b003031c152818mr2303990ilq.87.1669705231086; Mon, 28 Nov 2022 23:00:31 -0800 (PST) Date: Mon, 28 Nov 2022 23:00:31 -0800 In-Reply-To: <20221129022831.6181-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002dbc8d05ee968baf@google.com> Subject: Re: [syzbot] WARNING in iov_iter_revert (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 expedited stalls on CPUs/tasks: { P4109 } 2690 jiffies s: 2793 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: b7b275e6 Linux 6.1-rc7 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=15ab6753880000 kernel config: https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1 dashboard link: https://syzkaller.appspot.com/bug?extid=8c7a4ca1cc31b7ce7070 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=100b6753880000