From owner-freebsd-questions@FreeBSD.ORG Tue Nov 22 18:18:15 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C8A2C106564A for ; Tue, 22 Nov 2011 18:18:15 +0000 (UTC) (envelope-from henry95@gmail.com) Received: from mail-vx0-f182.google.com (mail-vx0-f182.google.com [209.85.220.182]) by mx1.freebsd.org (Postfix) with ESMTP id 861E68FC0C for ; Tue, 22 Nov 2011 18:18:15 +0000 (UTC) Received: by vcbfl10 with SMTP id fl10so781183vcb.13 for ; Tue, 22 Nov 2011 10:18:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=F0E7pubt9KLHptlpaO8uJTRvo/sX3T7t16tO7CJgqcE=; b=W7wJc3NEa/rJhXp2Aso4MoovQGZpOQpTyGz9BYkwlCBUkdxEHq1ygi5o/hWFszjz9Y YcCsuNhU6TycESDL5y7bkM9deCIkbH0hwSdGyyMhYhgBevmn7NOC4lKEQRD6100Kmrod yhOO3xGxm3j7p6TdZRxSuoqr3XqwC1IhGlWis= MIME-Version: 1.0 Received: by 10.52.38.6 with SMTP id c6mr22754857vdk.73.1321984256352; Tue, 22 Nov 2011 09:50:56 -0800 (PST) Received: by 10.52.114.132 with HTTP; Tue, 22 Nov 2011 09:50:56 -0800 (PST) Date: Tue, 22 Nov 2011 12:50:56 -0500 Message-ID: From: Henry M To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: reexec socketpair: No buffer space available X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Nov 2011 18:18:16 -0000 Hi all, Has anyone come across this error before: sshd[20861]: error: reexec socketpair: No buffer space available It stops remote users/services to connect to the machine remotely. I have 17 jails running on the machine. CPU load on the machine is low, and RAM usage is also low (16GB avail, 5GB Active) System info: FreeBSD 8.0-RELEASE-p6 FreeBSD 8.0-RELEASE-p6 $ netstat -mb 1029/4101/5130 mbufs in use (current/cache/total) 514/3446/3960/65536 mbuf clusters in use (current/cache/total/max) 0/1536 mbuf+clusters out of packet secondary zone in use (current/cache) 0/1582/1582/12800 4k (page size) jumbo clusters in use (current/cache/total/max) 0/0/0/6400 9k jumbo clusters in use (current/cache/total/max) 0/0/0/3200 16k jumbo clusters in use (current/cache/total/max) 1285K/14245K/15530K bytes allocated to network (current/cache/total) 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) 0/0/0 requests for jumbo clusters denied (4k/9k/16k) 0/0/0 sfbufs in use (current/peak/max) 0 requests for sfbufs denied 0 requests for sfbufs delayed 373686 requests for I/O initiated by sendfile 0 calls to protocol drain routines What else should I be looking for to help me trouble this? I know I'm hitting some limit, but not sure which one. Any help would be much appreciated. Thanks, Henry