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=-6.0 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 998AAC433DB for ; Mon, 25 Jan 2021 23:54:28 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F0DE020724 for ; Mon, 25 Jan 2021 23:54:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F0DE020724 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=linux-audit-bounces@redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611618866; 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=wMNp4VhvExiKcGVgC9Aj2C5BS/VaK3KYhvflQUKNLiU=; b=Uzn1MlLVcpfgl6EaBgmVgew3MK7+dR2dC3BI86Ay/3fUquv2ASzEU0cYnZrMYQZdj19Y+f KBi2lT4GoCaIt5HgNUePKmjS7bl+66VY/kn5WxLGyes9i29dEFCHOVReafOUuFODaSrAKA nKdyzTz9+awnQahYhGhtidjk6e3LGww= 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-389-YsIuk6rOM5iBrJ3KJoVCvg-1; Mon, 25 Jan 2021 18:54:24 -0500 X-MC-Unique: YsIuk6rOM5iBrJ3KJoVCvg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F0EC11005504; Mon, 25 Jan 2021 23:54:20 +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 5403510023BF; Mon, 25 Jan 2021 23:54:20 +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 6885A4A7C6; Mon, 25 Jan 2021 23:54:01 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 10PNrxhV011517 for ; Mon, 25 Jan 2021 18:53:59 -0500 Received: by smtp.corp.redhat.com (Postfix) id A69A819C47; Mon, 25 Jan 2021 23:53:59 +0000 (UTC) Received: from x2.localnet (ovpn-117-75.rdu2.redhat.com [10.10.117.75]) by smtp.corp.redhat.com (Postfix) with ESMTP id 894FB19C78; Mon, 25 Jan 2021 23:53:53 +0000 (UTC) From: Steve Grubb To: burn@swtf.dyndns.org Subject: Re: Occasional delayed output of events Date: Mon, 25 Jan 2021 18:53:52 -0500 Message-ID: <11685937.O9o76ZdvQC@x2> Organization: Red Hat In-Reply-To: <6484d9c52b66405ecbe76096fd5e896e5626b216.camel@iinet.net.au> References: <30c5dbc14368a1919717e2f39d2d4c29463c3108.camel@iinet.net.au> <6484d9c52b66405ecbe76096fd5e896e5626b216.camel@iinet.net.au> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-loop: linux-audit@redhat.com Cc: Richard Guy Briggs , Linux Audit 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 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=linux-audit-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Saturday, January 23, 2021 5:55:44 PM EST Burn Alting wrote: > > > How is the following for a way forward. > > > a. I will author a patch to the user space code to correctly parse this > > > condition and submit it on the weekend. It will be via a new > > > configuration item to auditd.conf just in case placing a fixed > > > extended timeout (15-20 secs) affects memory usage for users of the > > > auparse library. This solves the initial problem of ausearch/auparse > > > failing to parse generated audit.b. I am happy to instrument what ever > > > is recommended on my hosts at home (vm's and bare metal) to provide > > > more information, should we want to 'explain' the occurrence, given I > > > see this every week or two and report back. > > > > Seems reasonable to me. > > I can implement the 'end_of_event_timeout' change either as > i. a command line argument to ausearch/aureport (say --eoetmo secs) and a > new pair of library functions within the auparse() stable (say > auparse_set_eoe_timeout() and auparse_get_eoe_timeout()) > or > ii. a configuration item in /etc/audit/auditd.conf, or > > > Which is your preference? Mine is i. as this is a user space processing > change, not a demon change. To be honest, I'm not entirely sure what we're seeing. I run some tests today on my system. It's seeing issues also. I'd still like to treat the root cause of this. But we do need to change the default. That I what I'm trying to figure out. Back to your question, I'm wondering if we should do both? A changeable default in auditd.conf and an override on the command line. -Steve -- Linux-audit mailing list Linux-audit@redhat.com https://www.redhat.com/mailman/listinfo/linux-audit