From owner-freebsd-current@FreeBSD.ORG Mon Oct 18 17:02:34 2004 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 B9FEE16A4CE; Mon, 18 Oct 2004 17:02:34 +0000 (GMT) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0C90C43D45; Mon, 18 Oct 2004 17:02:33 +0000 (GMT) (envelope-from avg@icyb.net.ua) Received: from [212.40.38.87] (oddity.topspin.kiev.ua [212.40.38.87]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id UAA29884; Mon, 18 Oct 2004 20:02:30 +0300 (EEST) (envelope-from avg@icyb.net.ua) Message-ID: <4173F726.5060408@icyb.net.ua> Date: Mon, 18 Oct 2004 20:02:30 +0300 From: Andriy Gapon User-Agent: Mozilla Thunderbird 0.7.3 (X11/20040831) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-current@freebsd.org, freebsd-emulation@freebsd.org Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailman-Approved-At: Tue, 19 Oct 2004 12:05:14 +0000 Subject: process stuck in DE state 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: Mon, 18 Oct 2004 17:02:34 -0000 The hanging application runs in linux emulation. $ ps ax -O wchan | fgrep 970 970 fdlhol p4 DE 0:00,09 strmqcsv WAS_node_si_server_sb4_si $ fstat -p 970 USER CMD PID FD MOUNT INUM MODE SZ|DV R/W mqm strmqcsv 970 root / 2 drwxr-xr-x 512 r mqm strmqcsv 970 wd /usr 1555303 drwxrwxr-x 512 r mqm strmqcsv 970 text /usr 1536473 -r-sr-s--- 7630 r mqm strmqcsv 970 0 /dev 10 crw-rw-rw- null r mqm strmqcsv 970 1 /dev 10 crw-rw-rw- null rw mqm strmqcsv 970 2 /dev 10 crw-rw-rw- null rw mqm strmqcsv 970 3* pipe c7076408 <-> c7af0158 0 rw mqm strmqcsv 970 4* pipe c7af0158 <-> c7076408 0 rw ipcs -a | fgrep 970 m 65561 286838271 --rw-rw-rw- mqm mqm mqm mqm 1 8192 970 974 18:47:11 18:47:11 18:47:11 This happens from time to time, I can not reproduce this at will, so it looks like a concurrency issue. As I understand this happens in kernel fdfree(). I use 5.2.1-release, so maybe it was fixed later, but I can not install -current (or 5.3 beta) at the moment. Is there anything I can do to avoid this problem and help debug it? -- Andriy Gapon