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=-7.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 1C7B6C64E7A for ; Tue, 1 Dec 2020 16:44:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B3240208C3 for ; Tue, 1 Dec 2020 16:44:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="PBdLYyjp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388385AbgLAQoZ (ORCPT ); Tue, 1 Dec 2020 11:44:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:58644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726485AbgLAQoZ (ORCPT ); Tue, 1 Dec 2020 11:44:25 -0500 Received: from kicinski-fedora-pc1c0hjn.DHCP.thefacebook.com (unknown [163.114.132.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BE4392076C; Tue, 1 Dec 2020 16:43:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1606841021; bh=/4jrMcP32LSnKeYZZ/sDmA7PrGEwuYfMoP2zFqrEWqQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=PBdLYyjprHBie7dt3VzZZ74KkVrYNi04za5NtcmW0JELfBaJtAPNzNgqoEmBJOjx/ 0Qjg0TtH1Fvc4iAUr9vhzIY0MOIPQ71YTnN5kxa8lyr5MvJlBN5rWn+Yzb3/p7b2qC dYb8Nfit6dpWN0szam/xvWgDrOvF2aeBB3r+Ev6A= Date: Tue, 1 Dec 2020 08:43:39 -0800 From: Jakub Kicinski To: Ido Schimmel Cc: Aleksandr Nogikh , fw@strlen.de, davem@davemloft.net, johannes@sipsolutions.net, edumazet@google.com, andreyknvl@google.com, dvyukov@google.com, elver@google.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, willemdebruijn.kernel@gmail.com, Aleksandr Nogikh , Willem de Bruijn Subject: Re: [PATCH v5 2/3] net: add kcov handle to skb extensions Message-ID: <20201201084339.6d4efa5a@kicinski-fedora-pc1c0hjn.DHCP.thefacebook.com> In-Reply-To: <20201201073529.GA1473056@shredder.lan> References: <20201029173620.2121359-1-aleksandrnogikh@gmail.com> <20201029173620.2121359-3-aleksandrnogikh@gmail.com> <20201121160941.GA485907@shredder.lan> <20201130175248.7f0b5309@kicinski-fedora-pc1c0hjn.DHCP.thefacebook.com> <20201201073529.GA1473056@shredder.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, 1 Dec 2020 09:35:29 +0200 Ido Schimmel wrote: > > Looking at the patch from Marco to move back to a field now I'm > > wondering how you run into this, Ido :D > > > > AFAIU the extension is only added if process as a KCOV handle. > > > > Are you using KCOV? > > Hi Jakub, > > Yes. We have an internal syzkaller instance where this is enabled. See > "syz-executor.0" in the trace below. I see, thanks! The world makes sense again :)