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, 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 A0C54C432C0 for ; Sat, 30 Nov 2019 21:04:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7781A2082E for ; Sat, 30 Nov 2019 21:04:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727280AbfK3VED (ORCPT ); Sat, 30 Nov 2019 16:04:03 -0500 Received: from mail-io1-f71.google.com ([209.85.166.71]:51975 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727025AbfK3VED (ORCPT ); Sat, 30 Nov 2019 16:04:03 -0500 Received: by mail-io1-f71.google.com with SMTP id t18so17272290iob.18 for ; Sat, 30 Nov 2019 13:04:01 -0800 (PST) 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=ajRnvypnjscQlLjcnb2EcjX6WsZvwjmcn8iDAJm1MBA=; b=jBrEC0ibeqO9WPDvRNraMSkJbzvWQbGdg9XhSgeqXkDWb7q5DuR5o7NnaugkhLWXsG 2XKUJBdrs60dEMT8uwOlhUg99Kq846yTG5YsdGiLuttvrWZlwH0331xVC78uHQPRlbwD tdgcZAsu5TjjxVA88BoXxFv4kd+tEXHh9aCzgpItDiHerEhYPLhzGlwxzkhq7G7PTGcL LVRIMoAk/r+qP5QCp3yJe+UeTuntFQtULwrVSiUo0XgnX2arp0aEBJnUPIJ9WfgjNDTL 1q+50wHjydzgc1+5olp9URzJ7xn7mTHUawt85TuR+R9pUCnfy2Xk1uAKH2q0WIISQZkG Y8rA== X-Gm-Message-State: APjAAAWk6fvuWx3/JE7AVx2BKb1B+CbgPIWX9aKB4czTcDL1Nb0mkrL7 z7Auj3IX1CrIMmaH/xIWv+zfZElxiVKnF1R8qGW7wYndDq6e X-Google-Smtp-Source: APXvYqyk0rTcqugfdtur6uiuIuBVEo0q39xqazGWbjHn8D5vwxIrxEHCKojMOgpwHWUMv5+j3+qw1ag0Lxh+CojKUAkDMAHfCxI3 MIME-Version: 1.0 X-Received: by 2002:a05:6638:3b6:: with SMTP id z22mr8076076jap.35.1575147841422; Sat, 30 Nov 2019 13:04:01 -0800 (PST) Date: Sat, 30 Nov 2019 13:04:01 -0800 In-Reply-To: <089e0825d4a4d2cb2a0562e878f1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008e8a99059896af4c@google.com> Subject: Re: possible deadlock in sch_direct_xmit From: syzbot To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, lucien.xin@gmail.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com, yoshfuji@linux-ipv6.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this bug to: commit c84bed440e4e11a973e8c0254d0dfaccfca41fb0 Author: Xin Long Date: Sun Oct 1 14:00:56 2017 +0000 ip_gre: erspan device should keep dst bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=153a767ee00000 start commit: c92a9a46 git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=173a767ee00000 console output: https://syzkaller.appspot.com/x/log.txt?x=133a767ee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=46986c099cb53bc6 dashboard link: https://syzkaller.appspot.com/bug?extid=29cc278357da941e304e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143636c9800000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16856849800000 Reported-by: syzbot+29cc278357da941e304e@syzkaller.appspotmail.com Fixes: c84bed440e4e ("ip_gre: erspan device should keep dst") For information about bisection process see: https://goo.gl/tpsmEJ#bisection