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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 7AEF7C4708F for ; Tue, 1 Jun 2021 05:00:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F73661370 for ; Tue, 1 Jun 2021 05:00:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232635AbhFAFBz (ORCPT ); Tue, 1 Jun 2021 01:01:55 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:40947 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229477AbhFAFBv (ORCPT ); Tue, 1 Jun 2021 01:01:51 -0400 Received: by mail-il1-f198.google.com with SMTP id b4-20020a920b040000b02901dc81bf7e72so4057345ilf.7 for ; Mon, 31 May 2021 22:00:10 -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=HZoCrhifvFqebweO5oM8sTQXrnYAq0UL7ZIrots2vSc=; b=M+uAj0H1hJ0/e9UgFx4Y3iT8pZmTzmM4zeHBnHsiLxNs0zhVKO879cqWCtpcnjDShW uX+QJWGSbgb8bAZFgIf59nuPOdBfUElGDvQKm4TeHh0lpcFqPW+Y7Nz8jwlK6xNPly/d us7JKH2RQXeBk/jwzuaCCFH5fm7oYVV7hEPCLcPvev+jR/Dfw44M0iO8IKJXVFZ85aE7 konBNdF4glwaWS7EokEVi/0h7Rq1MaY+MQjsd0eDNwVuxAHWY/0HyEt01D/OYI5utqlf A4Fs42J1dtbK5PIVHj2/th6C+qtrUgkN/W6fXzyenFAHHbsR1Yi7Cw+Q3wefonKu+kJq NUYw== X-Gm-Message-State: AOAM5309y/UJFbqNbG7SpV5lea6N54SJR2yqWYQbwAukezva0WzMli5v FQZpsnrvxi3XUu4f8ex73oN16fC/1LiNenyzytbSrwoVpu/M X-Google-Smtp-Source: ABdhPJyDPqVeQwFPYxvwDFNm5lVzsEmrtB9fOyxrUNzo2mPUK0UzLNL7BZ0jpoGpdR7H0zY1Wl5YoHHlpd3CmiPaYpmOLCQaOLqA MIME-Version: 1.0 X-Received: by 2002:a92:d201:: with SMTP id y1mr19795884ily.103.1622523610124; Mon, 31 May 2021 22:00:10 -0700 (PDT) Date: Mon, 31 May 2021 22:00:10 -0700 In-Reply-To: <000000000000f32b3c05958ed0eb@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006bd5ff05c3ad37da@google.com> Subject: Re: [syzbot] INFO: task hung in register_netdevice_notifier (2) From: syzbot To: a@unstable.cc, ast@kernel.org, b.a.t.m.a.n@lists.open-mesh.org, bpf@vger.kernel.org, brouer@redhat.com, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, kuba@kernel.org, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, mkl@pengutronix.de, netdev@vger.kernel.org, socketcan@hartkopp.net, songliubraving@fb.com, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com, xdp-newbies@vger.kernel.org, yhs@fb.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org syzbot has bisected this issue to: commit 6bf071bf09d4b2ff3ee8783531e2ce814f0870cb Author: Jesper Dangaard Brouer Date: Tue Jun 18 13:05:27 2019 +0000 xdp: page_pool related fix to cpumap bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1397c4a7d00000 start commit: 7ac3a1c1 Merge tag 'mtd/fixes-for-5.13-rc4' of git://git.k.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=1057c4a7d00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1797c4a7d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=266cda122a0b56c dashboard link: https://syzkaller.appspot.com/bug?extid=355f8edb2ff45d5f95fa syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16cc630fd00000 Reported-by: syzbot+355f8edb2ff45d5f95fa@syzkaller.appspotmail.com Fixes: 6bf071bf09d4 ("xdp: page_pool related fix to cpumap") For information about bisection process see: https://goo.gl/tpsmEJ#bisection