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=-6.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 1758BC4338F for ; Wed, 11 Aug 2021 16:48:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E1D1E61019 for ; Wed, 11 Aug 2021 16:48:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229723AbhHKQtE (ORCPT ); Wed, 11 Aug 2021 12:49:04 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:46036 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229530AbhHKQtE (ORCPT ); Wed, 11 Aug 2021 12:49:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1628700519; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=e8eXzyZPU8ibblQCIDVI7DWbw4ntel2kHPrrgJi+qTA=; b=NlDgLvScaRpmW5zk5IMhWvYQRdIWIOT8C5TYKtQV4HO4z4NRCCot1lZBDmHvaqjguWW2lD ScqmRGiCQPGcIq3lJ5s8BOgm7dzDZ0KBTKDG/EwVW59609ztZuJcoDjGXb2duuIogVD7JB CFfIctwfILuwmBqlnhW54mAgZd+jkWs= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-93-RhHhV4aiNceHIL_lX9iSAA-1; Wed, 11 Aug 2021 12:48:38 -0400 X-MC-Unique: RhHhV4aiNceHIL_lX9iSAA-1 Received: by mail-wr1-f70.google.com with SMTP id z10-20020a5d440a0000b0290154e0f00348so960821wrq.4 for ; Wed, 11 Aug 2021 09:48:38 -0700 (PDT) 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=e8eXzyZPU8ibblQCIDVI7DWbw4ntel2kHPrrgJi+qTA=; b=n+AIwhpLLvdAvLoLTO5syOf2q/rYBbNUiA+0WlnrxQtp2KwYaVyyK/R4uJ2PUVvg7D fJjW4nsGRccSQZ+7Q/FDqnPXG1EEpUkCsqZeIt8+hkCH3uvt/cnPyh7ELKozr1Mu8Nu5 PB3o6q4OQfalPmVx5sQczMduHZEb1FiZdQ5ofG8EOOJCAgVRp4+gkijuoURrh+1PAz14 qUzWqoBsNdZpqEkEz+sMeXdRnrxNZPlzIZEDPhA+zqu+99SyAGJEoSS3ml3Hq74hSvwX tae8kSDNEbjUTlpBzq+z/7UC4eo5eIYdtHps1WGWaUiavVySgYhk6kLyhWwc2ovfs5u5 mAvQ== X-Gm-Message-State: AOAM5325wgzA3r8lVqIPERyfBz5v9PE6mbqu7hbqyoY8nUeddFOIN2gN ncCKdCQYDwLCFYCc8jWnRJHZUekEo96ZPH4O3h8snb/eEDVIyI0a3M8D8r30xicpAhqoEtPBovn NcDO5NZPkDXqTsiNA X-Received: by 2002:adf:e804:: with SMTP id o4mr37035297wrm.55.1628700517560; Wed, 11 Aug 2021 09:48:37 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxQNOncaDRiHGaJuWs5datwxNgR03HcrIWLnI5EzbF2eCNHiz6yMhv1pomszASSnQhv89n2Og== X-Received: by 2002:adf:e804:: with SMTP id o4mr37035284wrm.55.1628700517442; Wed, 11 Aug 2021 09:48:37 -0700 (PDT) Received: from pc-32.home (2a01cb058918ce00dd1a5a4f9908f2d5.ipv6.abo.wanadoo.fr. [2a01:cb05:8918:ce00:dd1a:5a4f:9908:f2d5]) by smtp.gmail.com with ESMTPSA id d8sm28116005wrv.20.2021.08.11.09.48.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Aug 2021 09:48:37 -0700 (PDT) Date: Wed, 11 Aug 2021 18:48:35 +0200 From: Guillaume Nault To: Martin Zaharinov Cc: Pali =?iso-8859-1?Q?Roh=E1r?= , Greg KH , netdev , Eric Dumazet Subject: Re: Urgent Bug report: PPPoE ioctl(PPPIOCCONNECT): Transport endpoint is not connected Message-ID: <20210811164835.GB15488@pc-32.home> References: <7EE80F78-6107-4C6E-B61D-01752D44155F@gmail.com> <08EC1CDD-21C4-41AB-B6A8-1CC2D40F5C05@gmail.com> <20210808152318.6nbbaj3bp6tpznel@pali> <8BDDA0B3-0BEE-4E80-9686-7F66CF58B069@gmail.com> <20210809151529.ymbq53f633253loz@pali> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Wed, Aug 11, 2021 at 02:10:32PM +0300, Martin Zaharinov wrote: > And one more that see. > > Problem is come when accel start finishing sessions, > Now in server have 2k users and restart on one of vlans 3 Olt with 400 users and affect other vlans , > And problem is start when start destroying dead sessions from vlan with 3 Olt and this affect all other vlans. > May be kernel destroy old session slow and entrained other users by locking other sessions. > is there a way to speed up the closing of stopped/dead sessions. What are the CPU stats when that happen? Is it users space or kernel space that keeps it busy? One easy way to check is to run "mpstat 1" for a few seconds when the problem occurs.