Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp182108pxu; Tue, 1 Dec 2020 08:47:02 -0800 (PST) X-Google-Smtp-Source: ABdhPJzEX27XJ+Dey2oCEZVhoifZEYGDXMp3lXSZE/eODHLtw5xCzM5ICvQUsw7wqKXcSqIICaYp X-Received: by 2002:a05:6402:1153:: with SMTP id g19mr3970284edw.312.1606841222510; Tue, 01 Dec 2020 08:47:02 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606841222; cv=none; d=google.com; s=arc-20160816; b=RyFhTVG503EzJNdOKNR1igMmV6dE2Bqd8y698BmtH4sWI80A8HxVl2xuovZzxxht3h NXPo5NC4s+oDFk9jFEZkRrOxIJA+oiinA6PMg+UTRcaPLAowTwjbC9lHph7HUhrJoQm6 YEtCcDl3tVa8rw0MPGNlsOSUMqVWJkmBxf1G0ngwLKSFSXFX4hFspElWQspvpQP24Zxh lftSNeORLBN2eNVu8agoWGJNU8GhEjepwiZmxYRBRyrf4KSlHiYg9lNXRypbycWdYLUu jbHHwJoLD81AieDarMi5LdT7FmM57PGLfd/lo97ByLLayAFOGkcMpidHXqEFdLxoC5yU pAnw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date :dkim-signature; bh=QFkwK6H48cCmEYQuir7c3YL7svqLXU8aS+cyAMMsW8U=; b=yXOlRmN9MvF7+6kYmApXodcJQEkQA0oSX8WUAmOD2irGMS9IvPX0nZZjvX3KWwAthM jOgTaWen7DZip4p+TqB2nwD7qB1j2U6o0uXDER9EDKstr3nTFoYKDfipubVa6p66aUqY 3cdyXMPy89Dg0CgCVN+uN42lYb8Yw9XxQMQ035N1BLU1pZlZ/h03DKPty0aRexDcZ3Cj BsjWul71UMMCW4zl6W+q5DMJbBuN2oocWrK1HOIU69FJm4vCKgI5qIcHe4FAEfLSSwad 4Zyx+63Wu2/9P72K6mKjYFKIBlLBqTE1OK+t4WIexx2Nd65UfGe5k2lCTAYQXxQSlg3Y lD4w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=PBdLYyjp; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id s19si238233ejz.621.2020.12.01.08.46.27; Tue, 01 Dec 2020 08:47:02 -0800 (PST) Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=PBdLYyjp; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388102AbgLAQoZ (ORCPT + 99 others); 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: linux-wireless@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 :)