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=-0.9 required=3.0 tests=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 696D8C433E0 for ; Thu, 18 Jun 2020 14:37:03 +0000 (UTC) Received: from us-smtp-delivery-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1D3822083B for ; Thu, 18 Jun 2020 14:37:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Al13m9J0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1D3822083B Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-audit-bounces@redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1592491022; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=ZirEhDhXxxrLKizpFbgqVObI1jGqJnbfyWxLp+VQVFw=; b=Al13m9J0b86gqo3XIh/fqaTcxUO2SKiEAwOtDkcRCa7J7QGyQ4Fauz/xPqZCnPzQjlSl0h Ht20rrfb0LFYzJm4QnHQqIuVPN+6dEIrY7iQvAe7ELgCI2TdgNNDjLWFHizrFvLJBr5fY+ Qmzx1Yg0V/muRqrvG9/bGuj3AI0CP04= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-372-1w5VhFbJNxqEXeCx-jwzsg-1; Thu, 18 Jun 2020 10:36:53 -0400 X-MC-Unique: 1w5VhFbJNxqEXeCx-jwzsg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CF5558018D9; Thu, 18 Jun 2020 14:36:49 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 9CD5D60BF4; Thu, 18 Jun 2020 14:36:49 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id EDDF6833C8; Thu, 18 Jun 2020 14:36:48 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 05IEal9R014603 for ; Thu, 18 Jun 2020 10:36:47 -0400 Received: by smtp.corp.redhat.com (Postfix) id 2EBC61002388; Thu, 18 Jun 2020 14:36:47 +0000 (UTC) Received: from x2.localnet (ovpn-113-148.phx2.redhat.com [10.3.113.148]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1385E1001E91; Thu, 18 Jun 2020 14:36:44 +0000 (UTC) From: Steve Grubb To: Paul Moore Subject: Re: [PATCH] audit: optionally print warning after waiting to enqueue record Date: Thu, 18 Jun 2020 10:36:43 -0400 Message-ID: <8359651.kEV6mM8lSS@x2> Organization: Red Hat In-Reply-To: References: <20200616045855.GA1699@linux-kernel-dev> <1648649.cZYg8c8PMo@x2> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-loop: linux-audit@redhat.com Cc: linux-audit@redhat.com X-BeenThere: linux-audit@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Linux Audit Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-audit-bounces@redhat.com Errors-To: linux-audit-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Thursday, June 18, 2020 9:46:54 AM EDT Paul Moore wrote: > On Thu, Jun 18, 2020 at 9:39 AM Steve Grubb wrote: > > The kernel cannot grow the backlog unbounded. If you do nothing, the > > backlog is 64 - which is too small to really use. Otherwise, you set the > > backlog to a finite number with the -b option. > > If one were to set the backlog limit to 0, it is effectively disabled > allowing the backlog to grow without any restrictions placed on it by > the audit subsystem. Then I'd say you asked for it. The cure is setting a number. But regardless, we could use some metrics on the backlog and visibility into the time it takes to dequeue. That might signal problems with plugins or overly agressive rules. -Steve -- Linux-audit mailing list Linux-audit@redhat.com https://www.redhat.com/mailman/listinfo/linux-audit