From owner-freebsd-fs@FreeBSD.ORG Thu Aug 22 09:31:49 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 12127F2C for ; Thu, 22 Aug 2013 09:31:49 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 79F3F2C97 for ; Thu, 22 Aug 2013 09:31:48 +0000 (UTC) Received: from tom.home (kostik@localhost [127.0.0.1]) by kib.kiev.ua (8.14.7/8.14.7) with ESMTP id r7M9VcAr046959; Thu, 22 Aug 2013 12:31:38 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.8.3 kib.kiev.ua r7M9VcAr046959 Received: (from kostik@localhost) by tom.home (8.14.7/8.14.7/Submit) id r7M9Vc29046957; Thu, 22 Aug 2013 12:31:38 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 22 Aug 2013 12:31:38 +0300 From: Konstantin Belousov To: Yamagi Burmeister Subject: Re: 9.2-RC1: LORs / Deadlock with SU+J on HAST in "memsync" mode Message-ID: <20130822093138.GO4972@kib.kiev.ua> References: <20130819115101.ae9c0cf788f881dc4de464c5@yamagi.org> <20130822102121.a799b116b0f6b0f7c90ba578@yamagi.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="UdMTFKtjsqZ7F4Ev" Content-Disposition: inline In-Reply-To: <20130822102121.a799b116b0f6b0f7c90ba578@yamagi.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on tom.home Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Aug 2013 09:31:49 -0000 --UdMTFKtjsqZ7F4Ev Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 22, 2013 at 10:21:21AM +0200, Yamagi Burmeister wrote: > Hello, > attached is a file with the transcript of a dd session containing: > - ps > - trace > - show pcpu > - show allpcpu > - show locks > - show alllocks > - show lockedvnods > - alltrace > If the attachement is eaten by mailman the file can be found here: > http://deponie.yamagi.org/freebsd/debug/lor_hast/ddb2.txt >=20 > This is my first deadlock debug session. So if anything is still > missing please tell me. >=20 This has absolutely nothing to do with the deadlock we trying to catch. On your case, it seems that all i/o on the box is stalled, and my guess is that hastd just recursed waiting for some i/o completion which requires working hastd to finish. Talk to hastd author(s) about this. --UdMTFKtjsqZ7F4Ev Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (FreeBSD) iQIcBAEBAgAGBQJSFdp5AAoJEJDCuSvBvK1Bu14P/iAEEh4gpJvfaX9p6ownrW+2 pnuu1nOuM4kaGnK2ZghCqznpvlG+wOYzXIkp0A9m1tkq2kOmUgEnbTnnTRlsatTi fq4Zi2jOZ7+9OxjaShxH8K12zeTydjVRX6Wt/AkdUH6p8L8044BezI2fbVG3oZ21 ml8pfg+NaM7wbYdcF8KgKwV8EK1eAixqdBqsIM85xQwyjnRDnlpXCzMr0RJCHGqd WAsCGLA/eKj/bYubha/jffxHOgXTyn+ySmecJuE8ib2rapvVXQ7X5Qrw5udikVn/ fP7j2BCIRc8plg8fu8zyMw3EzdmD/WQFFU+Tsm2V1NvQQaCUmlSO50KRRyYik8vf oL/7+5TIcVbont3syfcZiW2oCjagRjELzzNBWalpejYJZWv8UIOVRUNe0CAe/56l ajrd99h6E4JoyCDxapqhxZUqKIvzV/T+Ll0eDjke2YvOKPlRx5r0eHxgApSgpApj +fbr3WWdodP90u9t4vNuO9p9/2RZ2vvP6g/vfA3+qrsQZQWpRvctT2Ju2rXNzUYj fvQFikvH258LmDAuuZWkYOUe8JdncoJBw0VgejzwckFdQd3u/HwEvyEawQEFw2+D AX7y7o6PTLQ5KdqzChrk59bhr3nBUSH3cwKtknMJO2xQAXkqLCUpCK+cv+Jq+o+4 t4QHdSQqp49XMoINGITr =iRdS -----END PGP SIGNATURE----- --UdMTFKtjsqZ7F4Ev--