From owner-freebsd-net@FreeBSD.ORG Tue May 17 19:54:44 2005 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0DDA816A4CE for ; Tue, 17 May 2005 19:54:44 +0000 (GMT) Received: from mail04.stbernard.com (mail02.stbernard.com [64.154.93.166]) by mx1.FreeBSD.org (Postfix) with ESMTP id 540C043D80 for ; Tue, 17 May 2005 19:54:43 +0000 (GMT) (envelope-from esmallis@stbernard.com) Received: from mail01.stbernard.com (mail01.stbernard.com [192.168.32.92]) j4HJsTvl090943; Tue, 17 May 2005 12:54:29 -0700 (PDT) X-MimeOLE: Produced By Microsoft Exchange V6.0.6375.0 content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 17 May 2005 12:54:29 -0700 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: PR kern/78968 MBuf cluster exhaustion. RFC (solutions) Thread-Index: AcVbGigGmzMpNbDpQ/2fwaMIUBbnFw== From: "Ernest Smallis" To: X-Scanned-By: ePrism email filtering appliance Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: PR kern/78968 MBuf cluster exhaustion. RFC (solutions) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 May 2005 19:54:44 -0000 Hi All, I am seeing this problem as well: a. The kernel is in a tight loop via the fxp driver since there are = frames that need to be DMA'd but cannot be because 'b.' b. The fxp driver calls m_getcl( ) which returns ENOBUFS since there are = no clusters to satisfy the request. This goes on constantly so it = appears the system is hung. I submitted a follow-up to the PR and also requested contact with a = committer to discuss this problem and possible solutions.=20 I think this should be fixed, right away. If you would like to donate your 2 cents worth to this discussion; I = would be very happy to hear from you and am grateful for the input.=20 Ernie ;-) Ernest Smallis Sr. Software Engineer RAPID Development esmallis@stbernard.com 858-524-2137