From owner-freebsd-current@FreeBSD.ORG Sat Apr 4 10:11:59 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0D335106566B for ; Sat, 4 Apr 2009 10:11:59 +0000 (UTC) (envelope-from bsam@ipt.ru) Received: from services.ipt.ru (services.ipt.ru [194.62.233.110]) by mx1.freebsd.org (Postfix) with ESMTP id BEFDF8FC0A for ; Sat, 4 Apr 2009 10:11:58 +0000 (UTC) (envelope-from bsam@ipt.ru) Received: from bb.ipt.ru ([194.62.233.89]) by services.ipt.ru with esmtp (Exim 4.54 (FreeBSD)) id 1Lq2qz-000DEs-Gv; Sat, 04 Apr 2009 14:11:57 +0400 To: Thierry Herbelot References: <200904041050.28932.thierry.herbelot@free.fr> <200904041151.18209.thierry.herbelot@free.fr> From: Boris Samorodov Date: Sat, 04 Apr 2009 14:11:56 +0400 In-Reply-To: <200904041151.18209.thierry.herbelot@free.fr> (Thierry Herbelot's message of "Sat\, 4 Apr 2009 11\:51\:17 +0200") Message-ID: <10969763@bb.ipt.ru> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Cc: freebsd-current@freebsd.org, peter@FreeBSD.org Subject: Re: Stuck kernel while cleaning up the object tree X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Sat, 04 Apr 2009 10:11:59 -0000 On Sat, 4 Apr 2009 11:51:17 +0200 Thierry Herbelot wrote: > Le Saturday 04 April 2009, Thierry Herbelot a écrit : > > Hello, > > > > On recent -current machines, I have seen a common pattern, with the machine > > being frozen (still responsive to pings, though) in the initial phases of > > the buildworld procedure : > > > > example freeze : > > -------------------------------------------------------------- > > > > >>> stage 2.1: cleaning up the object tree > > > > -------------------------------------------------------------- > > cd /usr/src; MAKEOBJDIRPREFIX=/usr/obj MACHINE_ARCH=i386 MACHINE=i386 > > CPUTYPE= GROFF_BIN_PATH=/usr/obj/usr/src/tmp/legacy/usr/bin > > GROFF_FONT_PATH=/usr/obj/usr/src/tmp/legacy/usr/share/groff_font > > GROFF_TMAC_PATH=/usr/obj/usr/src/tmp/legacy/usr/share/tmac > > _SHLIBDIRPREFIX=/usr/obj/usr/src/tmp VERSION="FreeBSD 8.0-CURRENT i386 > > 800074" INSTALL="sh /usr/src/tools/install.sh" > > PATH=/usr/obj/usr/src/tmp/legacy/usr/sbin:/usr/obj/usr/src/tmp/legacy/usr/b > >in:/usr/obj/usr/src/tmp/legacy/usr/games:/usr/obj/usr/src/tmp/usr/sbin:/usr/ > >obj/usr/src/tmp/usr/bin:/usr/obj/usr/src/tmp/usr/games:/sbin:/bin:/usr/sbin: > >/usr/bin NO_CTF=1 make -f Makefile.inc1 DESTDIR=/usr/obj/usr/src/tmp > > par-cleandir ===> share/info (cleandir) > > ===> lib (cleandir) > > ===> lib/csu/i386-elf (cleandir) > > [type ^T in the console] > > load: 0.00 cmd: sh 24587 [*Name Cache] 0.01u 0.00s 0% 1584k > > > > The other machines also froze while "cleaning up the object tree". > > > > The machines are configured with serial consoles : I have no kernel stack > > backtrace to aid in pinpointing the cause of this freeze. > > > > Cheers > > > > TfH > With a bit more investigation : > on a separate ssh session, top is still live and shows processes stuck as : > 24523 root 1 76 0 1888K 764K *Name 1 0:00 0.00% make > on still another machine, running Witnesses (all other machines run with a > lean GENERIC, with most of the debuging features commented out) : > System call __getcwd returning with the following locks held: > shared rw Name Cache (Name Cache) r = 0 (0xc0ee7e1c) locked > @ /usr/src/sys/kerne/vfs_cache.c:974 This is definitely related to: SVN rev 190655 on 2009-04-02 21:16:20Z by peter (peter@ CCed) > panic: witness_warn > cpuid = 0 > KDB: enter: panic WBR -- Boris Samorodov (bsam) Research Engineer, http://www.ipt.ru Telephone & Internet SP FreeBSD Committer, http://www.FreeBSD.org The Power To Serve