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=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,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 49B6AC433B4 for ; Mon, 26 Apr 2021 11:54:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0E48861289 for ; Mon, 26 Apr 2021 11:54:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232953AbhDZLzW (ORCPT ); Mon, 26 Apr 2021 07:55:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40388 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232878AbhDZLzV (ORCPT ); Mon, 26 Apr 2021 07:55:21 -0400 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89C49C061574; Mon, 26 Apr 2021 04:54:40 -0700 (PDT) Received: by mail-pl1-x634.google.com with SMTP id p17so2901561plf.12; Mon, 26 Apr 2021 04:54:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=YVWBdeIeN9rQKY5lpBVWnLapN4/WYy+0IlaZ07mPtA8=; b=bLSE5s3Nb++c9HkSnlzRQvkZhLg7gD9S+SAWsDALfYLhFSFLhuj/HaDA0rPWKaWe2+ xDBNAqrJzGmWQvIj0bzUyW9b1PxdYFD5gfkE+8A4SvbpvQE19nadYfBmfo8CgjWyXC61 o0hrQtlx9zZBpsEDdE38T8QaXDqUQEI6Uizc+QmhIB1fuQ+hAKc9s+vaNGwmubEKBYq8 17CC9FtRzqJIzZUM1Y7yNkFzgQsrEUxldxWYc3TZjOGBc4hw5saL4aARXv9xUM89i1MC 2StUJhlKgTxqXNPVqhcrUGda/L8nnbnowe4uU85OF9FPMO3iyO4omCtzKz9Y5wfbf3/6 aZ0Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=YVWBdeIeN9rQKY5lpBVWnLapN4/WYy+0IlaZ07mPtA8=; b=OQbAMMNtNbq1+HtRMAEMhYkLt3EFOBOZgX3RKxcpuaha1UnjphKj8nrn0O8jqRfzz2 m4tLITfOwk69ZNCkh+6rym1Woq58dAnd0LDRm2A7ePsMpdA5cIsAv2D7+tsKf25/u1jz SwzcZXnse2KTBoldnnyd8YUJP0DqEIZvgXpcBH5XlB4aWhwB8E8uuUKnXkul8d84wW5C 4SVtoaLCurwTpKPmC2TYy1a+PL+l43SNXYoI7OQEd1j5k5EFgOe+mu++leB5eTwthrBN D/2Qq/D7Bm4WsgiEBdfObeu60j8QaPdk8hAfh1vmCzmTYCIQ2uPM5m1XThwI9jw5d7UH Dmqw== X-Gm-Message-State: AOAM533s1eEAgo7WL243x39vJe6xlPXKPlyWNtPTuwn5RFdR5bAveiRU MUdFlLfBaDBfUZy73I1KEzY= X-Google-Smtp-Source: ABdhPJyDmCNBbXjgPoQfyUpH3P7GgTT/p/hZdoP4V4NEDpYo1PkuUyZ9ojCD5sga5uZvDaungiEaxA== X-Received: by 2002:a17:90a:77c8:: with SMTP id e8mr23009425pjs.69.1619438080122; Mon, 26 Apr 2021 04:54:40 -0700 (PDT) Received: from Leo-laptop-t470s ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id i131sm11033068pgc.20.2021.04.26.04.54.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Apr 2021 04:54:39 -0700 (PDT) Date: Mon, 26 Apr 2021 19:54:27 +0800 From: Hangbin Liu To: Jesper Dangaard Brouer Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, Toke =?iso-8859-1?Q?H=F8iland-J=F8rgensen?= , Jiri Benc , Eelco Chaudron , ast@kernel.org, Daniel Borkmann , Lorenzo Bianconi , David Ahern , Andrii Nakryiko , Alexei Starovoitov , John Fastabend , Maciej Fijalkowski , =?iso-8859-1?Q?Bj=F6rn_T=F6pel?= , Martin KaFai Lau Subject: Re: [PATCHv10 bpf-next 2/4] xdp: extend xdp_redirect_map with broadcast support Message-ID: <20210426115427.GV3465@Leo-laptop-t470s> References: <20210423020019.2333192-1-liuhangbin@gmail.com> <20210423020019.2333192-3-liuhangbin@gmail.com> <20210426115350.501cef2a@carbon> <20210426104704.GR3465@Leo-laptop-t470s> <20210426134105.4706af0b@carbon> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210426134105.4706af0b@carbon> Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On Mon, Apr 26, 2021 at 01:41:05PM +0200, Jesper Dangaard Brouer wrote: > > > While running: > > > $ sudo ./xdp_redirect_map_multi -F i40e2 i40e2 > > > Get interfaces 7 7 > > > libbpf: elf: skipping unrecognized data section(23) .eh_frame > > > libbpf: elf: skipping relo section(24) .rel.eh_frame for section(23) .eh_frame > > > Forwarding 10140845 pkt/s > > > Forwarding 11767042 pkt/s > > > Forwarding 11783437 pkt/s > > > Forwarding 11767331 pkt/s > > > > > > When starting: sudo ./xdp_monitor --stats > > > > That seems the same issue I reported previously in our meeting. > > https://bugzilla.redhat.com/show_bug.cgi?id=1906820#c4 > > > > I only saw it 3 times and can't reproduce it easily. > > > > Do you have any idea where is the root cause? > > All the information you need to find the root-cause is listed below. > I have even decoded where in the code it happens, and also include the > code with line-numbering and pointed to the line the crash happens in, > I don't think it is possible for me to be more specific and help further. Thanks, I mixed this issue with the one I got previously, which I haven't figure out yet. For this one, I have sent a propose in another reply (that fix it in trace point event). Would you please help review. Hangbin