From owner-freebsd-current@FreeBSD.ORG Tue Oct 19 19:46:02 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 0F2B916A4CE; Tue, 19 Oct 2004 19:46:02 +0000 (GMT) Received: from mail.vicor-nb.com (bigwoop.vicor-nb.com [208.206.78.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id B134F43D54; Tue, 19 Oct 2004 19:45:59 +0000 (GMT) (envelope-from julian@elischer.org) Received: from elischer.org (julian.vicor-nb.com [208.206.78.97]) by mail.vicor-nb.com (Postfix) with ESMTP id 74E557A424; Tue, 19 Oct 2004 12:45:59 -0700 (PDT) Message-ID: <41756EF7.1020906@elischer.org> Date: Tue, 19 Oct 2004 12:45:59 -0700 From: Julian Elischer User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.3.1) Gecko/20030516 X-Accept-Language: en, hu MIME-Version: 1.0 To: Andriy Gapon References: <4173F726.5060408@icyb.net.ua> In-Reply-To: <4173F726.5060408@icyb.net.ua> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-emulation@freebsd.org cc: freebsd-current@freebsd.org Subject: Re: 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: Tue, 19 Oct 2004 19:46:02 -0000 Andriy Gapon wrote: >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? > Unfortunatly a LOT of work was done in this area for 5.3. We did make it clear I think that people loading 5.2 should be prepared to upgrade to 5.3 as soon as it became viable because we expectedt too many problems with 5.2 for us to go back and fix it.. So Unfortunatly I'm going to suggest the one thing you said you really didn't want to have to do.. (WHY can't you go to 5.3?) > > >