From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <users-bounces@dpdk.org> Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A2EFE424CD for <public@inbox.dpdk.org>; Mon, 17 Jun 2024 22:43:34 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 58B4940A84; Mon, 17 Jun 2024 22:43:34 +0200 (CEST) Received: from mail-pg1-f181.google.com (mail-pg1-f181.google.com [209.85.215.181]) by mails.dpdk.org (Postfix) with ESMTP id 157B4402DA for <users@dpdk.org>; Mon, 17 Jun 2024 22:43:33 +0200 (CEST) Received: by mail-pg1-f181.google.com with SMTP id 41be03b00d2f7-6c4926bf9baso3954939a12.2 for <users@dpdk.org>; Mon, 17 Jun 2024 13:43:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718657012; x=1719261812; darn=dpdk.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=Si5elgH3SfFRIPZaOriEDGy07QpYusOF62KiPAb79Oc=; b=UzTRQK5GvXvV3EQynUNq4TpXKFpxqYNd6djny4aq3AtXtjcKv/UyFcCiKdPuctBRHC 84d4F+YVNN5/UpVBXrqJxnfzd662JMTkrccigTwBfVuuuFXzaSdTfqLAe4VVDqF6Aeik DHwnqEz5Nmcp0QAYCpg6P2tH9BjFU5+tk6m8GdMg6W8UIRibrB1gBvJmKn34PzcY3zJj TdDIMYW12tELJYTptabJ77D/DftmcJyY1lY7lPOcimqsWMmGTQreiw4pX3QzeDrGWQQ6 2CBXoSi4E5TzYvY4j7EUfRfl7gO8dtu1PGhKOWCTdXBK9+m5hzXGEyATY1pYlziNxq// ThEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718657012; x=1719261812; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Si5elgH3SfFRIPZaOriEDGy07QpYusOF62KiPAb79Oc=; b=BowKQGA5CnFY7a+VsagzAkU/iquGQlbnfnwUcbrV1dupDo9JyjOmTem/MYMgvoHDAv cLvlzHMhTemIrFBPg9Ei3BiNZ50iv41rkFtPxxXc3/2sn+yNWDFwhZjwdsqXxkWbk3pr 4VXVc8aV2pMEQuDztE3qyuSKQA/l/vjJZlSqmG82Q6EKkZpgULvGotG5ijJD5BlKphPS SU0J4U58RVsKt+5poSyDshBOv7jfagZjH1Qw0HfWVkyauchJ6jXZVCIim9hIIE0V7t6i UZd5lMz7SAgF149m7j/kC3ROWDbvvPijcrsC/csOvv5dhU2UQQHRvesDVPfL6vh0O4x0 Omwg== X-Gm-Message-State: AOJu0Yy7G9apXQA0lAlcCm5u2F9X8YM3L271w86ma9qK4dwuyHuerWFW IVi9fpVT2XwSVCZm6vhtgzGB8BCPGQp5asnAs842PGs/yuyAY4JHASRhrtp/A7g4ForV8vo4qz+ p6arXZuBdoJVg5S5qr8VChC8P7JI= X-Google-Smtp-Source: AGHT+IHkfJvxqd4U2ZLL9UAkZ/a2ydRdO0PyJQMW0co2KVp7FAf1Bh12BNXAQmWnCa3LCdFgziFJvD5G4uScFGehTRA= X-Received: by 2002:a17:90a:8c94:b0:2c2:1d0f:3c6e with SMTP id 98e67ed59e1d1-2c4db951e80mr10826333a91.37.1718657011917; Mon, 17 Jun 2024 13:43:31 -0700 (PDT) MIME-Version: 1.0 References: <CAC-fF8S8KL_d4QPWuQL+vAsQAfjnPA1m7hNP830qobHJ-4J3eA@mail.gmail.com> <20240617083049.412242fb@hermes.local> <CAC-fF8QcWvS-neMUq4HzY1Uh4cPnDFuVVnPLkC8B5ZtcReLTsQ@mail.gmail.com> <CAC-fF8RCdRtiZiQza5FOZpZBPzTQGyTAJ-6V7tZQCVu5cywUYg@mail.gmail.com> <CAC-fF8TVPYBui-D+OMmjYURszHi5ipfkyuV60dWAJ2QDXsSOHA@mail.gmail.com> In-Reply-To: <CAC-fF8TVPYBui-D+OMmjYURszHi5ipfkyuV60dWAJ2QDXsSOHA@mail.gmail.com> From: Isaac Boukris <iboukris@gmail.com> Date: Mon, 17 Jun 2024 23:43:19 +0300 Message-ID: <CAC-fF8ThAXSQ3nMQtOE7ofQ4C04qWQTWZwPMJ_WMdR9ERv6cVw@mail.gmail.com> Subject: Re: dumpcap: weird failure with six IPv6 hosts in the filter To: Stephen Hemminger <stephen@networkplumber.org> Cc: users@dpdk.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions <users.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/users>, <mailto:users-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/users/> List-Post: <mailto:users@dpdk.org> List-Help: <mailto:users-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/users>, <mailto:users-request@dpdk.org?subject=subscribe> Errors-To: users-bounces@dpdk.org On Mon, Jun 17, 2024 at 10:37=E2=80=AFPM Isaac Boukris <iboukris@gmail.com>= wrote: > > > Just a quick update that I still see the issue in my env with the > > master branch (24.07.0-rc0), I'm now testing by adding the filter to > > 'sample_filters' in test_bpf.c and running: > > time sudo build/app/dpdk-test bpf_convert_autotest > > > > With 5 hosts it takes less than 2 secs, with 6 it takes about 25 secs, > > i'll try to strace it maybe. > > strace was useless, no syscalls for ~18 secs, not sure how to debug it > further, valgrind / callgrind don't work on dpdk.. > > It doesn't seem to be about the size though, I was able to produce > larger bpf code with ipv4 addresses and it worked fine too. Debugged a bit further with gdb, it looks like it is stuck in a while loop in lib/bpf/bpf_validate.c:evaluate(), there is a comment saying "make sure we evaluate each node only once" but it seem to go back and forth on the same idx's afaict.