From owner-freebsd-net@FreeBSD.ORG Wed Feb 17 14:10:01 2010 Return-Path: Delivered-To: freebsd-net@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 94D22106566B for ; Wed, 17 Feb 2010 14:10:01 +0000 (UTC) (envelope-from minotaur@crete.org.ua) Received: from relay.padonki.org.ua (relay.padonki.org.ua [193.0.227.26]) by mx1.freebsd.org (Postfix) with ESMTP id 5337C8FC13 for ; Wed, 17 Feb 2010 14:10:00 +0000 (UTC) Received: from minotaur by relay.padonki.org.ua with local (Exim 4.69 (FreeBSD)) (envelope-from ) id 1NhjvE-0000Eu-OM; Wed, 17 Feb 2010 15:26:32 +0200 Date: Wed, 17 Feb 2010 15:26:32 +0200 From: Alexander Shikoff To: freebsd-net@FreeBSD.org Message-ID: <20100217132632.GA756@crete.org.ua> MIME-Version: 1.0 Content-Type: text/plain; charset=koi8-u Content-Disposition: inline User-Agent: Mutt/1.5.18 (2008-05-17) Sender: Alexander Shikoff Cc: Subject: mpd has hung X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Feb 2010 14:10:01 -0000 Hello All, I have mpd 5.3 running on 8.0-RC1 as PPPoE server (now only 5 clients). Today mpd process hung and I cannot kill it with -9 signal, and I cannot access it's console via telnet. State of process in `top` output is STOP: 73551 root 2 44 0 29588K 5692K STOP 6 0:32 0.00% mpd5 # procstat -kk 73551 PID TID COMM TDNAME KSTACK 73551 100233 mpd5 - mi_switch+0x16f sleepq_wait+0x42 _cv_wait+0x111 flowtable_flush+0x51 if_detach+0x2f2 ng_iface_shutdown+0x1e ng_rmnode+0x167 ng_apply_item+0xef7 ng_snd_item+0x2ce ngc_send+0x1d2 sosend_generic+0x3f6 kern_sendit+0x13d sendit+0xdc sendto+0x4d syscall+0x1da Xfast_syscall+0xe1 73551 100502 mpd5 - mi_switch+0x16f thread_suspend_switch+0xc6 thread_single+0x1b6 exit1+0x72 sigexit+0x7c postsig+0x306 ast+0x279 doreti_ast+0x1f Is there a way to stop a process without rebooting a whole system? Thanks in advance! P.S. I'm ready for experiments with it before tonight, but I cannot force system to crash in order to get crash dump right now. -- MINO-RIPE