From owner-freebsd-questions@FreeBSD.ORG Mon Feb 28 08:23:28 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 228FA1065676 for ; Mon, 28 Feb 2011 08:23:28 +0000 (UTC) (envelope-from leprasko@yahoo.com) Received: from nm28.bullet.mail.ne1.yahoo.com (nm28.bullet.mail.ne1.yahoo.com [98.138.90.91]) by mx1.freebsd.org (Postfix) with SMTP id BADDA8FC19 for ; Mon, 28 Feb 2011 08:23:27 +0000 (UTC) Received: from [98.138.90.57] by nm28.bullet.mail.ne1.yahoo.com with NNFMP; 28 Feb 2011 08:09:58 -0000 Received: from [98.138.89.163] by tm10.bullet.mail.ne1.yahoo.com with NNFMP; 28 Feb 2011 08:09:58 -0000 Received: from [127.0.0.1] by omp1019.mail.ne1.yahoo.com with NNFMP; 28 Feb 2011 08:09:58 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 507985.92243.bm@omp1019.mail.ne1.yahoo.com Received: (qmail 78112 invoked by uid 60001); 28 Feb 2011 08:09:58 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1298880598; bh=VPBbxfQGd4XSrOlZ/45VzdRODmjKQlTKaIgH8jWlbQw=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=lr1j4dOOq2PtSO4XbhNnXjYlme6DCkaktYGyT53TvnF81/KJ4SmJtqMLAw3BfbmLUc+VxA8qiYPHDIxLgeeUqwFTMEbkxWNI74sXibKzsgmsVJQGDFwzvIYKF9fskYzgIj+OjbwAks16/3WYcImqOkQ/Vasxcw9IiRtAadu3NJU= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=5j8/E2/kCvnkM7tJhwlCdTdRvnVhIu+N5FDjLcDfuWqlKZGj+wnc27FsMfN40IbTc0SgGLoBVMAl2DdCxNHKhYTYGJSWNzkPo1lldwKshmQWqWutXwlNvGckvB59zbSKddmem+PM9DYnHh+fxw/0BuNcE+OoHpSUWC1Q7oqHpqQ=; Message-ID: <410789.77875.qm@web120601.mail.ne1.yahoo.com> X-YMail-OSG: HR_k4YAVM1n_LqhK5riatuhFI6fFSBzLf52TiUNNX7URXOg 8PpOyzB1Dy1pqpH9VW3L8s7j0eUXWEs5UgmKYBH55qkVJpPchRjjGVmI5Sew NHCE4a21Y7tM_.imvKu5DIgsewAzWQiuHlARnPxUqp8lk4td4UaazSLOVP7R AQnzY15Aljf0QhKqABG.QwHoOwdj9oJwRJk.LAW5tzOMTeS8fZCsaFo3ZcFQ jmWabKNwZPPbAoDeK_uqgHW.A2RShpoD7mO5x.krBo9b8G6xo8g-- Received: from [194.44.21.226] by web120601.mail.ne1.yahoo.com via HTTP; Mon, 28 Feb 2011 00:09:58 PST X-Mailer: YahooMailRC/555 YahooMailWebService/0.8.109.292656 Date: Mon, 28 Feb 2011 00:09:58 -0800 (PST) From: Lep Names To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: server drop network connections 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: Mon, 28 Feb 2011 08:23:28 -0000 Hello. I have so strange trouble: every week my server drop all network connections - ssh,ping etc. But it continue working. tech support can access it over kvm. after reboot everything works fine for a week. it seems to me that it's trouble in mbufs. FreeBSD 8.1-RELEASE-p2 sysctl.conf: security.bsd.see_other_uids=0 kern.ipc.somaxconn=2048 net.inet.icmp.drop_redirect=1 #net.inet.icmp.log_redirect=1 net.inet.tcp.blackhole=2 net.inet.tcp.drop_synfin=1 net.inet.tcp.sendspace=131072 net.inet.tcp.recvspace=65536 net.inet.udp.recvspace=32768 kern.fallback_elf_brand=-1 net.inet.ip.maxfragpackets=1024 kern.sync_on_panic=1 vfs.ufs.dirhash_maxmem=100000000 kern.polling.burst_max=1000 kern.polling.each_burst=1000 kern.polling.reg_frac=100 kern.polling.user_frac=1 kern.maxvnodes=256000 net.inet.ip.intr_queue_maxlen=256 #dev.em.0.rx_processing_limit=1000 #dev.em.1.rx_processing_limit=1000 net.inet.tcp.recvbuf_auto=0 net.inet.tcp.sendbuf_auto=0 net.inet.tcp.tso=0 net.isr.direct=1 net.route.netisr_maxqlen=1024 #net.inet.flowtable.nmbflows=8192 kern.ipc.nmbclusters=65536 net.inet.ip.portrange.first=1024 net.inet.ip.portrange.hifirst=1024 net.inet.tcp.hostcache.expire=1200 net.inet.tcp.fast_finwait2_recycle=1 net.inet.tcp.finwait2_timeout=3000 net.inet.tcp.keepinit=5000 net.inet.tcp.nolocaltimewait=1 net.inet.tcp.maxtcptw=65536 net.inet.tcp.msl=3000 kern.coredump=1 kern.random.sys.harvest.interrupt=0 kern.random.sys.harvest.ethernet=0 net.inet.udp.blackhole=1 netstat -m 868/1052/1920 mbufs in use (current/cache/total) 715/923/1638/65536 mbuf clusters in use (current/cache/total/max) 709/443 mbuf+clusters out of packet secondary zone in use (current/cache) 0/35/35/12800 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) 1647K/2249K/3896K 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) 139/313/6656 sfbufs in use (current/peak/max) 0 requests for sfbufs denied 0 requests for sfbufs delayed 4031 requests for I/O initiated by sendfile 0 calls to protocol drain routines it seems to me that i must enlarge 1920 value, but i do not know how. Thanks