X-GM-Message-State: AKGB3mIxw7yHwMl0dWz2SMdfTcxU9npH18tMxAqHilHeNgc0wOwadDKl kwfXX2H/N51Ynu81SJVeqJ76z1DDGGU= content-type: text/plain; charset="utf-8" X-Spam-Status: No, score=-2.8 required=5.0 tests=RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2 autolearn=unavailable autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mx.pao1.isc.org From: "Pavel Zhukov" To: "Thomas Markwalder via RT" References: <87d13ucw5p.fsf@pzhukov-workstation.usersys.redhat.com> <87bmjcas15.fsf@pzhukov-workstation.usersys.redhat.com> X-Google-Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=RgE3gTY3B2x5O1T1jHzAkeKezpDDP0dN0hRr3Zdm51A=; b=mcGAfJ6z8sniTLKaL4ivTc8O47ZJwGe5rJeaHaB3/UQOgknSVqGwcqN0rGoFipc9LQ yBP9Ad96dLp591XTDUmzN5Bvwud2oCbqiuPsGS1z+TMhEyR4QKTTvmZiI1feM2wLS69h BvMaECTaDV8083U25toQHrHy858b+20Hl4Vf7DdwVlLe9AyIH6uF81v4keVwLLxoZry9 tixYOoh6+tfNNnJ9xZg/Sdux5U9Rn9rce9IBhHqdqOY3eJ/j/rNhjwmdibl5jpiXJgMC 6sv8k3n77EmxLv0DcdhRGfheXh2zVoOrjlVxXc/MUqNFktqhG6N6sfjUqZujtQ2GJPo+ 04mw== X-Original-To: dhcp-confidential@bugs.isc.org Return-Path: X-RT-Incoming-Encryption: Not encrypted Message-ID: <877etzc3yl.fsf@pzhukov-workstation.usersys.redhat.com> From pzhukov@redhat.com Wed Dec 6 14:43:06 2017 X-Google-SMTP-Source: AGs4zMZnTjLyGL5rB/XFR9w4VKDB5z7jW1X4J6X6AuLGr+l2c8+M9K9DACcuI6L0qF6X+0+E955BCw== X-Received: by 10.223.158.203 with SMTP id b11mr8983924wrf.82.1512571379746; Wed, 06 Dec 2017 06:42:59 -0800 (PST) Received: from mx.pao1.isc.org (mx.pao1.isc.org [149.20.64.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx.pao1.isc.org", Issuer "COMODO RSA Organization Validation Secure Server CA" (not verified)) by bugs.isc.org (Postfix) with ESMTPS id 972A2D78B0B for ; Wed, 6 Dec 2017 14:43:06 +0000 (UTC) Received: from mail-wr0-f179.google.com (mail-wr0-f179.google.com [209.85.128.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.pao1.isc.org (Postfix) with ESMTPS id 8248B3AE027 for ; Wed, 6 Dec 2017 14:43:01 +0000 (UTC) Received: by mail-wr0-f179.google.com with SMTP id h1so4138072wre.12 for ; Wed, 06 Dec 2017 06:43:01 -0800 (PST) Received: from pzhukov-workstation.usersys.redhat.com (nat-pool-brq-t.redhat.com. [213.175.37.10]) by smtp.gmail.com with ESMTPSA id i3sm2755514wre.33.2017.12.06.06.42.58 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 06 Dec 2017 06:42:59 -0800 (PST) In-Reply-To: (Thomas Markwalder via's message of "Wed, 06 Dec 2017 14:24:51 +0000") X-RT-Interface: Email User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) X-RT-Original-Encoding: utf-8 Delivered-To: dhcp-confidential@bugs.isc.org Date: Wed, 06 Dec 2017 15:42:58 +0100 Subject: Re: [ISC-Bugs #46767] [PATCH] DHCPd leaks sockets descriptors MIME-Version: 1.0 RT-Message-ID: Content-Length: 968 "Thomas Markwalder via RT" writes: > Hello Pavel: Hello Thomas, > > We were able to reproduce it under Fedora 23. Ubuntu and Centos 7 > seem to be immune. We have an alternative patch that is under review > and can forward it to you for testing once reviewed. This is strange. Centos uses same codebase as RHEL (binary compatible) and issue has been reported by RHEL Customer. Customer confirmed that RHEL6's version (4.1.1) is not affected but RHEL7's is > > Our testing here with 4.3.3 under Fedora does confirm an eventual > inability to make further OMAPI connections, but the server does > continue to service DHCP clients. The code limits the number of open > FDs to 200. As 4.2* is EOL, we did not test it, though same patch > could be applied to it. Thank you! > > Regards, > > Thomas Markwalder > ISC Sofware Engineering -- PAVEL ZHUKOV SOFTWARE ENGINEER, RHCE, RHCVA Red Hat pzhukov@redhat.com IM: IRC: landgraf