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=-5.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_2 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 5162EC07E95 for ; Wed, 14 Jul 2021 03:08:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 366A36138C for ; Wed, 14 Jul 2021 03:08:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237436AbhGNDLB (ORCPT ); Tue, 13 Jul 2021 23:11:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237382AbhGNDLB (ORCPT ); Tue, 13 Jul 2021 23:11:01 -0400 Received: from telegrapho.inexo.com.br (unknown [IPv6:2001:12c4:f0da:5e:216:3eff:feff:56a4]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 3FFF2C0613DD for ; Tue, 13 Jul 2021 20:08:09 -0700 (PDT) Received: by telegrapho.inexo.com.br (Postfix, from userid 1001) id 8582D7AC4477; Wed, 14 Jul 2021 00:08:05 -0300 (-03) DKIM-Filter: OpenDKIM Filter v2.11.0 telegrapho.inexo.com.br 8582D7AC4477 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inexo.com.br; s=mail; t=1626232085; bh=1sBDOFkPtvEGBGBDxGO9vCIY4jkcx5xS3yO8CIjgB1U=; h=Date:From:To:Subject:From; b=qAvld4NXYPM2Qsz2C5IFmma3ey7+eyyEOk+zyK2y470MIU3hQVPVEGQo7QTTCbuUb qry6Z9vMdXm54GfH7/L+M6nlLGAQvJ9l+X7kKLWPFIR9NYC+fmwvXUgZ+Vvsgu+o5W tjKxIZ4HUiu4/CN8hksE3s6gkfgr1eUgfHPrqqLxMZuXI9ZoewsMCBfUyReG58IIKL RofFKjhX9Zv3uEaisiMTS8xzkOcfxOXm15ZAnRtHwcS+URUVCDY+ywcKb99OSRxPrv nv7WfdkCRGnAu3kxYIU9DWCbSO+YdGX+KJHdcazJp0w4SGHqG/2G5v0g1QKHUMD0pt 6vNFJPv621KFw== Received: from babalu (unknown [187.17.36.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by telegrapho.inexo.com.br (Postfix) with ESMTPSA id 54FF37AC4475 for ; Wed, 14 Jul 2021 00:08:05 -0300 (-03) DKIM-Filter: OpenDKIM Filter v2.11.0 telegrapho.inexo.com.br 54FF37AC4475 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inexo.com.br; s=mail; t=1626232085; bh=1sBDOFkPtvEGBGBDxGO9vCIY4jkcx5xS3yO8CIjgB1U=; h=Date:From:To:Subject:From; b=qAvld4NXYPM2Qsz2C5IFmma3ey7+eyyEOk+zyK2y470MIU3hQVPVEGQo7QTTCbuUb qry6Z9vMdXm54GfH7/L+M6nlLGAQvJ9l+X7kKLWPFIR9NYC+fmwvXUgZ+Vvsgu+o5W tjKxIZ4HUiu4/CN8hksE3s6gkfgr1eUgfHPrqqLxMZuXI9ZoewsMCBfUyReG58IIKL RofFKjhX9Zv3uEaisiMTS8xzkOcfxOXm15ZAnRtHwcS+URUVCDY+ywcKb99OSRxPrv nv7WfdkCRGnAu3kxYIU9DWCbSO+YdGX+KJHdcazJp0w4SGHqG/2G5v0g1QKHUMD0pt 6vNFJPv621KFw== Date: Wed, 14 Jul 2021 00:08:04 -0300 From: "Ethy H. Brito" To: "xdp-newbies@vger.kernel.org" Subject: bpf_debug output Message-ID: <20210714000804.426ed1f5@babalu> Organization: InterNexo Ltda. X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: xdp-newbies@vger.kernel.org Hi! I am working on some minor modifications in xdp-cpumap-tc to accommodate NAT at WAN side. But the things are not working as expected. How can bpf_debug be used to help debugging? I read that its output ends-up in /sys/kernel/debug/tracing/trace_pipe. But how can it be read? I tried "cat trace_pipe" but this produced no output whatsoever. Any hints will be appreciated. Thanx Regards Ethy