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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 37320C54E8D for ; Mon, 11 May 2020 13:19:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 08C6720801 for ; Mon, 11 May 2020 13:19:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729241AbgEKNTF (ORCPT ); Mon, 11 May 2020 09:19:05 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:46059 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725993AbgEKNTE (ORCPT ); Mon, 11 May 2020 09:19:04 -0400 Received: by mail-il1-f200.google.com with SMTP id t10so9103962ilf.12 for ; Mon, 11 May 2020 06:19:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=jf6uw931eaD0f37oBxexrpmMRBrOUigfkrOsk4tVxYc=; b=hi0ThZNlSN1tD5BNY5HVkBepjclZpBV+RIYCyk+VVzG2mvgTuLtLKWYCGU5bmwmMTZ sfp048U++IWyu/WuDr2NFU35UX2xNTL6NUxHhn/2SJtwMzLgPJP0RNSv/GC1qFON3mGI /rmzbTKw+9g9SZgNrCrjPtzg4irAAtrOQO5Q/EAaAYgc1Dug2xBInESOuJ2FXxTOUZJ9 3aIjbrD5K6QPGmPY0vfdYFY1XctZ+0ZGwof2NGmMbZ1JPb+f3vIQ+4B4D9N98AX/nHd9 /JalP/RMiDjftDnKvYgKt+CZSUXJPQinMKPZEnnBojHdgP4kwqthPAm2nDx8ZA0wUFfs 0HhQ== X-Gm-Message-State: AGi0Pub1WADpAwBa57qZ3DYe22tv/hgnVgHoueVCJtjqy7bxL+IXe2o/ LC9W14gLv1ULeZyy5qjVQfYPBg6o0XcXQ5/yG8Ey86G1GGF2 X-Google-Smtp-Source: APiQypIWFQQNEix6FghGjLTcmyohjPLCLNUzuWW6Ma9AOT3A6ZMNkBFkuxbBwRni8OgL21OchNtkHFxpyYZIKZAk0qWHuNKrOrGB MIME-Version: 1.0 X-Received: by 2002:a92:40c9:: with SMTP id d70mr16077782ill.291.1589203143785; Mon, 11 May 2020 06:19:03 -0700 (PDT) Date: Mon, 11 May 2020 06:19:03 -0700 In-Reply-To: <00000000000043ed6f059d1944bf@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000dc82ac05a55f3005@google.com> Subject: Re: INFO: task hung in do_read_cache_page (3) From: syzbot To: akpm@linux-foundation.org, amir73il@gmail.com, axboe@kernel.dk, darrick.wong@oracle.com, jack@suse.cz, josef@toxicpanda.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mchristi@redhat.com, syzkaller-bugs@googlegroups.com, william.kucharski@oracle.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 2da22da573481cc4837e246d0eee4d518b3f715e Author: Mike Christie Date: Tue Aug 13 16:39:52 2019 +0000 nbd: fix zero cmd timeout handling v2 bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11d6ab14100000 start commit: e99332e7 gcc-10: mark more functions __init to avoid secti.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=13d6ab14100000 console output: https://syzkaller.appspot.com/x/log.txt?x=15d6ab14100000 kernel config: https://syzkaller.appspot.com/x/.config?x=8a96cf498e199d8b dashboard link: https://syzkaller.appspot.com/bug?extid=518c54e255b5031adde4 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=146e45ec100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=164444a4100000 Reported-by: syzbot+518c54e255b5031adde4@syzkaller.appspotmail.com Fixes: 2da22da57348 ("nbd: fix zero cmd timeout handling v2") For information about bisection process see: https://goo.gl/tpsmEJ#bisection