From owner-freebsd-stable@FreeBSD.ORG Wed Nov 12 17:58:37 2008 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 4A11B1065677 for ; Wed, 12 Nov 2008 17:58:37 +0000 (UTC) (envelope-from tdb@carrick.bishnet.net) Received: from carrick.bishnet.net (carrick.bishnet.net [IPv6:2a01:348:132::1]) by mx1.freebsd.org (Postfix) with ESMTP id E296B8FC1C for ; Wed, 12 Nov 2008 17:58:36 +0000 (UTC) (envelope-from tdb@carrick.bishnet.net) Received: from tdb by carrick.bishnet.net with local (Exim 4.66 (FreeBSD)) (envelope-from ) id 1L0Jz0-00032C-9N; Wed, 12 Nov 2008 17:58:26 +0000 Date: Wed, 12 Nov 2008 17:58:26 +0000 From: Tim Bishop To: freebsd-stable@freebsd.org Message-ID: <20081112175826.GD26195@carrick.bishnet.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-PGP-Key: 0x5AE7D984, http://www.bishnet.net/tim/tim-bishnet-net.asc X-PGP-Fingerprint: 1453 086E 9376 1A50 ECF6 AE05 7DCE D659 5AE7 D984 User-Agent: Mutt/1.5.13 (2006-08-11) X-Bishnet-MailScanner-Information: Contact postmaster@bishnet.net X-Bishnet-MailScanner-VirusCheck: Found to be clean X-Bishnet-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-1.087, required 5, BAYES_00 -2.60, DNS_FROM_SECURITYSAGE 1.51, NO_RELAYS -0.00) X-Bishnet-MailScanner-From: tdb@carrick.bishnet.net Cc: tim@bishnet.net Subject: System deadlock when using mksnap_ffs 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: Wed, 12 Nov 2008 17:58:37 -0000 I've been playing around with snapshots lately but I've got a problem on one of my servers running 7-STABLE amd64: FreeBSD paladin 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #8: Mon Nov 10 20:49:51 GMT 2008 tdb@paladin:/usr/obj/usr/src/sys/PALADIN amd64 I run the mksnap_ffs command to take the snapshot and some time later the system completely freezes up: paladin# cd /u2/.snap/ paladin# mksnap_ffs /u2 test.1 It only happens on this one filesystem, though, which might be to do with its size. It's not over the 2TB marker, but it's pretty close. It's also backed by a hardware RAID system, although a smaller filesystem on the same RAID has no issues. Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/da0s1a 2078881084 921821396 990749202 48% /u2 To clarify "completely freezes up": unresponsive to all services over the network, except ping. On the console I can switch between the ttys, but none of them respond. The only way out is to hit the reset button. Any advice? I'm happy to help debug this further to get to the bottom of it. Thanks, Tim. -- Tim Bishop http://www.bishnet.net/tim/ PGP Key: 0x5AE7D984