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 CBC21C47255 for ; Mon, 11 May 2020 13:19:05 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8D9D2206F5 for ; Mon, 11 May 2020 13:19:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8D9D2206F5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 220D590004F; Mon, 11 May 2020 09:19:05 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1D1D2900036; Mon, 11 May 2020 09:19:05 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0BFBE90004F; Mon, 11 May 2020 09:19:05 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0048.hostedemail.com [216.40.44.48]) by kanga.kvack.org (Postfix) with ESMTP id E98D6900036 for ; Mon, 11 May 2020 09:19:04 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id AEF28441C for ; Mon, 11 May 2020 13:19:04 +0000 (UTC) X-FDA: 76804493808.02.fifth36_1502171d72f3f X-HE-Tag: fifth36_1502171d72f3f X-Filterd-Recvd-Size: 3168 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by imf25.hostedemail.com (Postfix) with ESMTP for ; Mon, 11 May 2020 13:19:04 +0000 (UTC) Received: by mail-il1-f199.google.com with SMTP id c11so9142966ilr.6 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=ujaK6mRh7stup9Gv0u3SaSuMDeMQa4geR03hD2exu8NJ0KycZ21FdWW49mvHmL5oPq db5MmBszIv+kqKm5cnRNe7VbafnK7/H05vd9+s0rVLY6Qu/hR4Gca+J/Hoz1/+750rb6 28VIdw+vbokQaxRv+KPIknEbkNNpDd6HhPF4CoctUVhDFH0X2UsDNx7fJNEdgFyyWZrW /1DkXRkGB68LJYH/qSfrVJZQEVjaBrmnBzuxiyns9oQLrkYj+OJ08ZSJwd0TcRhsu4av GGUlAFbx/oVeGG6OEMfoZZlM9uyURcz0rQxUL43GwgZbNkxL8IbGq902dxLQQdhndq3r 88vQ== X-Gm-Message-State: AGi0PuYqv99J2dRCrcMAnspSPNa4o3GFomGiE5slvPTaMEmqzFnnZGa2 GA4ku8hB7hqhmIqDPM2vSl3dfULbJA+nQed61usUfHiPiA8e 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" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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