From owner-freebsd-current@FreeBSD.ORG Thu Jul 10 10:46:03 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8BAA137B401 for ; Thu, 10 Jul 2003 10:46:03 -0700 (PDT) Received: from mailbox.univie.ac.at (mailbox.univie.ac.at [131.130.1.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id 236FC43F3F for ; Thu, 10 Jul 2003 10:46:02 -0700 (PDT) (envelope-from l.ertl@univie.ac.at) Received: from wireless (adslle.cc.univie.ac.at [131.130.102.11]) by mailbox.univie.ac.at (8.12.2/8.12.2) with ESMTP id h6AHjp7D199990 for ; Thu, 10 Jul 2003 19:45:57 +0200 Date: Thu, 10 Jul 2003 19:45:46 +0200 (CEST) From: Lukas Ertl To: current@freebsd.org Message-ID: <20030710193303.A725@korben.in.tern> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE X-DCC-ZID-Univie-Metrics: mx1 4244; Body=0 Fuz1=0 Fuz2=0 Subject: panic: kmem_malloc X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Jul 2003 17:46:03 -0000 Hi, we are currently stress-testing two 5.1 machines. Each of the machines have a 2.6GHz P4 and 512 MB RAM. The machines are running zebra, ospfd and nscd. We bomb the machines with many DNS requests (up to 50k/s), transmitted over Gigabit Ethernet. Unfortunately, both machines panic soon after starting the tests, and both go down with "kmem_malloc(4096): kmem_map too small" and says the current process is "4 (g_down)". I'd love to present a coredump and a backtrace, but somehow it just doesn't dump, it rather panics again with "ata_dmasetup: transfer active". Well, if I get this right, it means that the kernel VM is exhausted. Is there anything I can do apart from using more RAM? regards, le --=20 Lukas Ertl eMail: l.ertl@univie.ac.at UNIX-Systemadministrator Tel.: (+43 1) 4277-14073 Zentraler Informatikdienst (ZID) Fax.: (+43 1) 4277-9140 der Universit=E4t Wien http://mailbox.univie.ac.at/~le/