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=-3.6 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,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 49E71C2D0A3 for ; Tue, 3 Nov 2020 07:21:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E90FF21556 for ; Tue, 3 Nov 2020 07:21:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="I/e9geNV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725993AbgKCHVw (ORCPT ); Tue, 3 Nov 2020 02:21:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725988AbgKCHVw (ORCPT ); Tue, 3 Nov 2020 02:21:52 -0500 Received: from mail-yb1-xb44.google.com (mail-yb1-xb44.google.com [IPv6:2607:f8b0:4864:20::b44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF6BAC0617A6; Mon, 2 Nov 2020 23:21:51 -0800 (PST) Received: by mail-yb1-xb44.google.com with SMTP id s89so13953929ybi.12; Mon, 02 Nov 2020 23:21:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ebOQ9Je52Ez30DqwtDrcVUKFemUvVML69F1lmPNTVIw=; b=I/e9geNV9tzU8CIkTqKuEmOIsZYCWKKGd+WCtCpSgPxrxlQw4E6++PFFS8LYwGktEq FCcFyHXaEbuuxayyqd4kgEdAcUc/X+wdXHQ6mpnVTTXfkf0Qu7Ko4p2XkuGSMsqRcYWX 0WT1z7eI28uc/Y2LP8IyBvvq3eH92GMeFfGCt1S+PBNr5aoBh6/DH/e7l8m2Tj7P9u+M MSEv9l+EPUdUWY5b1IVtBML9fXje1Yr95BVaFWX1B9skdNjICVy3zaetSgLrGG+B3r5X PAaysuWe09a5Rc7C+8j59/aI8zq3lV7LpgMV/4GkoZgh51emuVF3HRr7a6TP0tWug9yo WPAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=ebOQ9Je52Ez30DqwtDrcVUKFemUvVML69F1lmPNTVIw=; b=FODtFeVpsgY0mKl1BLF+DP6ptTcMuhchBdVgml6sAk3plBgGlR1YfslvSCTmJgItFp Dq+VQg4QW16WkcNjj7VJEuQXMvXhY4Qdv8NjYAkrc86zrIp8IEhKHkICg8fUT3yqK1LB MRtwItCP1alq9VMu1F6zf2mes2XmfxKYbV8rXQAFWy23wfLgqE72v0ZyGf6bIgnqgqH2 198SXCQfG8HNVIWyqU1bG+fAR95SeWGh6NNT4rVa9RvUKPhsY4E7Q5V+fc5EB0dVhQer G7MdBPfmpK/PG7e5rs5sp2/litG4u78WTC6MmpYVe81q612oWwPvn/O6F4xG3ix6018m sS4A== X-Gm-Message-State: AOAM533l7CS/GgCKmD8jozTBp2+Fs5+kpvQLOWM06FIaz66b2wAxwCAk k7Mn76uXo0RvouMW5/yo9jKapb8tpFlfxXbGNNY= X-Google-Smtp-Source: ABdhPJzFEfGhyvQoxfMBw2GldYklK5VyOgWqObaAubmsY18xxv3SgrXeZt50AZbkDYLWVmrCbfDK0EgQo8aM14ondg8= X-Received: by 2002:a25:2d01:: with SMTP id t1mr28378049ybt.50.1604388111314; Mon, 02 Nov 2020 23:21:51 -0800 (PST) MIME-Version: 1.0 References: <00000000000061316205b0e750fc@google.com> <0000000000004cb88b05b2e8d1b4@google.com> In-Reply-To: <0000000000004cb88b05b2e8d1b4@google.com> From: Ming Lei Date: Tue, 3 Nov 2020 15:21:40 +0800 Message-ID: Subject: Re: INFO: task can't die in nbd_ioctl To: syzbot Cc: Jens Axboe , Josef Bacik , linux-block , Linux Kernel Mailing List , nbd@other.debian.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Sat, Oct 31, 2020 at 4:01 AM syzbot wrote: > > syzbot has found a reproducer for the following issue on: > > HEAD commit: 4e78c578 Add linux-next specific files for 20201030 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=158c1798500000 > kernel config: https://syzkaller.appspot.com/x/.config?x=83318758268dc331 > dashboard link: https://syzkaller.appspot.com/bug?extid=69a90a5e8f6b59086b2a > compiler: gcc (GCC) 10.1.0-syz 20200507 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15e051a8500000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15bf75b8500000 Not reproduce this issue by above C reproducer with the kernel config in hours running on linus tree. Thanks, Ming Lei