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=-5.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 A797FC4740A for ; Sat, 5 Oct 2019 20:58:07 +0000 (UTC) Received: from krantz.zx2c4.com (krantz.zx2c4.com [192.95.5.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 22EDE20867 for ; Sat, 5 Oct 2019 20:58:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="Ood9Z7QV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 22EDE20867 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=zx2c4.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=wireguard-bounces@lists.zx2c4.com Received: from krantz.zx2c4.com (localhost [IPv6:::1]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id bca4892e; Sat, 5 Oct 2019 20:57:40 +0000 (UTC) Received: from krantz.zx2c4.com (localhost [127.0.0.1]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 0acd5263 for ; Sat, 5 Oct 2019 20:57:37 +0000 (UTC) Received: from frisell.zx2c4.com (frisell.zx2c4.com [192.95.5.64]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id d5199c61 for ; Sat, 5 Oct 2019 20:57:37 +0000 (UTC) Received: by frisell.zx2c4.com (ZX2C4 Mail Server) with ESMTP id ba6840fb for ; Sat, 5 Oct 2019 20:10:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=zx2c4.com; h=mime-version :references:in-reply-to:from:date:message-id:subject:to:cc :content-type; s=mail; bh=7nyFEq9l9xxj6LI8+mcdGt50cJo=; b=Ood9Z7 QVlv3vf8Po/wWcDv9hz1228qpnLyNOx5Od3o9QkMKbfjNgo/d/vSwXJBCmvzSRGf NNQozoK4rCT6zLsngzjAypQDATrcKHztK9U5gDnBA2L2h4dDjQUqotllgwdlemwN vPRasgbcEKXddu3Hw4N4n34Vigq8j1wKQ9aRPDrpYFi8xWaZGeRhacvUBLWgw3SS xFB2AgZqSdzUCi5hsWZx6whIST7ChRTK+P4/RtgblilPguaCE6ZcJ8s6L0jJ3BWJ GtpnhE8BoDanEMsVm9Z1HVc/25L+quv/O+AM0/DsgpVwgYM1VbYW+Ac9yymPtFaY 1nz5f4OEkAIFkIVA== Received: by frisell.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 530b06be (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256:NO) for ; Sat, 5 Oct 2019 20:10:33 +0000 (UTC) Received: by mail-ot1-f42.google.com with SMTP id g13so8057424otp.8 for ; Sat, 05 Oct 2019 13:57:37 -0700 (PDT) X-Gm-Message-State: APjAAAVAKf7dJoiACAJ7R4HsCJeHSrRPIGkZguc7SHrPyxB9sUiXAWi4 EQzpO5A7A30exwvsP+P/b9xPt6ktMB97lC6ZWWE= X-Google-Smtp-Source: APXvYqz7cBUMw0zsmMOiTGquSyImcpbStGWl4BxvlkX4qsiEar9GXdRRqUQzZgP7FwN4UD07ubhxhojdQE+koSwoaMM= X-Received: by 2002:a9d:65d2:: with SMTP id z18mr3586290oth.52.1570309056657; Sat, 05 Oct 2019 13:57:36 -0700 (PDT) MIME-Version: 1.0 References: <87v9t2c45b.fsf@ungleich.ch> In-Reply-To: <87v9t2c45b.fsf@ungleich.ch> From: "Jason A. Donenfeld" Date: Sat, 5 Oct 2019 22:57:24 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Kernel panic on 5.3.1-arch1-1-ARCH To: Nico Schottelius Cc: WireGuard mailing list X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" This isn't WireGuard, actually. It's a line in wg-quick's bash that says `ip rule add ... suppress_prefix ...`. You can reproduce the kernel crash without WireGuard anywhere in the equation with this sequence: ip netns add crash ip -n crash link add dummy1 type dummy ip -n crash link set dummy1 up ip -n crash -6 route add default dev dummy1 ip -n crash -6 rule add table main suppress_prefixlength 0 ip netns exec crash ping -f -c 1000 -W 1 1234::1 || true ip -n crash -6 rule del table main suppress_prefixlength 0 ip -n crash link del dummy1 ip netns del crash I submitted a patch for this upstream here: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26 It's been backported to stable already. Update your kernel to 5.3.4 and things should work again for you. Jason _______________________________________________ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard