From owner-freebsd-stable@FreeBSD.ORG Thu Jan 6 12:26:38 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 34D4F106564A for ; Thu, 6 Jan 2011 12:26:38 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id 8681C8FC0C for ; Thu, 6 Jan 2011 12:26:36 +0000 (UTC) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id p06CQWOx063486 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 6 Jan 2011 14:26:32 +0200 (EET) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.4/8.14.4) with ESMTP id p06CQWsB024516; Thu, 6 Jan 2011 14:26:32 +0200 (EET) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.4/8.14.4/Submit) id p06CQWxk024515; Thu, 6 Jan 2011 14:26:32 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 6 Jan 2011 14:26:32 +0200 From: Kostik Belousov To: Lev Serebryakov Message-ID: <20110106122632.GO12599@deviant.kiev.zoral.com.ua> References: <1608571029.20110106133145@serebryakov.spb.ru> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="lLR1BQqf7txDtYcF" Content-Disposition: inline In-Reply-To: <1608571029.20110106133145@serebryakov.spb.ru> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-3.4 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, DNS_FROM_OPENWHOIS autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: "freebsd-stable@freebsd.org" Subject: Re: FreeBSD 8.2-PRERELEASE hangs under load with "live" kernel X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Jan 2011 12:26:38 -0000 --lLR1BQqf7txDtYcF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jan 06, 2011 at 01:31:45PM +0300, Lev Serebryakov wrote: > Hello, Freebsd-stable. >=20 > I've added torrent client (transmission) to software on my home > server and it starts to hang in very unusual way: kernel works but > userland doesn't. >=20 > I can ping it (and it answers). I can scroll console with > "scrolllock" button and keys. I can break into debugger with > Ctrl+SysReq and it shows, that one CPU is occupied by idle process and > other by "Giant tasq", but no userland processes answer: I can not > ssh to it, I cannot login on console, samba is dead, etc. >=20 > "ps" in kernel debugger shows, that many of processes in "pfault" > state, and noting more "special". >=20 > memtest86+ doesn't show any errors after 8 passes of tests (about > 10 hours), so RAM looks Ok. >=20 > What should I do in kdb to understand what happens? >=20 > Kernel config and /var/run/dmesg.boot is attached. http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kernel= debug-deadlocks.html --lLR1BQqf7txDtYcF Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAk0ltPgACgkQC3+MBN1Mb4hAWwCfR7NEV7956dk02hAdeZu2LjLu bNMAoMix6mFxq7lL3mQ0btSuGbMN1xmx =dEsS -----END PGP SIGNATURE----- --lLR1BQqf7txDtYcF--