From owner-freebsd-current@FreeBSD.ORG Fri Dec 20 10:55:49 2013 Return-Path: Delivered-To: freebsd-current@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 ESMTPS id CF01280B for ; Fri, 20 Dec 2013 10:55:49 +0000 (UTC) Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 8B636176B for ; Fri, 20 Dec 2013 10:55:49 +0000 (UTC) Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.82) for freebsd-current@freebsd.org with esmtp (envelope-from ) id <1Vtxk4-000cNH-MT>; Fri, 20 Dec 2013 11:55:40 +0100 Received: from telesto.geoinf.fu-berlin.de ([130.133.86.198] helo=telesto) by inpost2.zedat.fu-berlin.de (Exim 4.82) for freebsd-current@freebsd.org with esmtpsa (envelope-from ) id <1Vtxk4-000noL-KK>; Fri, 20 Dec 2013 11:55:40 +0100 Date: Fri, 20 Dec 2013 11:55:34 +0100 From: "O. Hartmann" To: FreeBSD CURRENT Subject: ZFS/zpool command blocks ... locking up all terminals Message-ID: <20131220115534.52e79a76@telesto> Organization: FU Berlin X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.22; amd64-portbld-freebsd11.0) MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; boundary="Sig_/H2/FUdg0bY=BMPNQjMrIaVY"; protocol="application/pgp-signature" X-Originating-IP: 130.133.86.198 X-ZEDAT-Hint: A X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.17 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: Fri, 20 Dec 2013 10:55:49 -0000 --Sig_/H2/FUdg0bY=BMPNQjMrIaVY Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable I have a faulty pool with an ambiguous label and I tried to resolve that problem. ZFS is at the moment highly active copying data from several volumes to another. Operating system: 11.0-CURRENT FreeBSD 11.0-CURRENT #1 r259522: Tue Dec 17 19:02:10 CET 2013 amd64 In one terminal I exported the pool in question and tried to list it via "zpool import". But the this command sequence locks up the terminal for an hour up! In another terminal I tried to issue to command "zpool status" to watch the status of the pools (I have several). But this terminal ist alos locked up right now! What is wrong here? I had such an issue in 10.0-CURRENT as well. It seems ZFS is locking everything up and can only be brought back by a hard reset! What is going on? Why is zpool locking up in trying to display a label-scrambled pool while the zpool status is then also locked up, but latter is supposed to show the status of the other, healthy pools? This reminds me of single-threaded tools which looks up every operation consecutively issued after the blocking command. How is this to be solved? Oliver --Sig_/H2/FUdg0bY=BMPNQjMrIaVY Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQEcBAEBAgAGBQJStCIsAAoJEOgBcD7A/5N84yQH/RT3HZ3Uz0gsVBLulYWnqb0s 6Rw242q9nuikMbjuGZv1kjIcQFj9QMHfcDru2IYLsaWtFRK7i+FOWO46zEpJvtxE dRhgQK0s85iV11bluWFHwDdPaIh9fCMD3nEPLyIATv7Uf+qM/OKKYwV54PjHdmxl iANXEHiZRNxEeNznCaycO45ybdqnT8FBGr0nWnvCV7nYIIkBWs6wUe9cZzq82eFV O8ahY8WYLolNJc4tallW96FGEUrBuPQ3AmN6d46whfN2ebh8IDRDRplzm9T35Cs8 NNz4GM7J/Bf8gU9Li5CgdUNrV8GrJaXTiknKJ3CnJ6AyOFDgLEg/9QhAUqNv8/Y= =f4Zy -----END PGP SIGNATURE----- --Sig_/H2/FUdg0bY=BMPNQjMrIaVY--