From owner-freebsd-geom@FreeBSD.ORG Sun Oct 12 09:46:13 2008 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C880C106568C; Sun, 12 Oct 2008 09:46:13 +0000 (UTC) (envelope-from auryn@zirakzigil.org) Received: from mail.giulioferro.it (mail.giulioferro.it [85.18.102.52]) by mx1.freebsd.org (Postfix) with ESMTP id 881978FC24; Sun, 12 Oct 2008 09:46:13 +0000 (UTC) (envelope-from auryn@zirakzigil.org) Received: from localhost (localhost [127.0.0.1]) by mail.giulioferro.it (Postfix) with ESMTP id 1E3D633C40; Sun, 12 Oct 2008 11:47:43 +0200 (CEST) X-Virus-Scanned: amavisd-new at giulioferro.it Received: from mail.giulioferro.it ([127.0.0.1]) by localhost (aurynwork1sv1.giulioferro.it [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZeZdEjKnj2OP; Sun, 12 Oct 2008 11:47:40 +0200 (CEST) Received: from [192.168.229.16] (localhost [127.0.0.1]) (Authenticated sender: gferro@giulioferro.it) by mail.giulioferro.it (Postfix) with ESMTP id 7024333C39; Sun, 12 Oct 2008 11:47:40 +0200 (CEST) Message-ID: <48F1C760.1080902@zirakzigil.org> Date: Sun, 12 Oct 2008 11:46:08 +0200 From: Giulio Ferro User-Agent: Thunderbird 2.0.0.17 (X11/20080925) MIME-Version: 1.0 To: freebsd-geom@freebsd.org, pjd@freebsd.org References: <48DE439C.4050505@zirakzigil.org> In-Reply-To: <48DE439C.4050505@zirakzigil.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: Re: Problems with journal? X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Oct 2008 09:46:13 -0000 Giulio Ferro wrote: > I'm experiencing very serious delay issues in 2 production servers. [...] > > I hope any of you can help me look in the right direction, and point > me to any further tests to try or tunable > to set... > > Thanks in advance. > I didn't receive any answer to this, so I'm guessing ufs journal is abandoned or there is no interest in supporting it in production environment. Anyway I removed it from my servers and reverted to standard UFS, so the problems disappeared. I also tried zfs (the only other journaled filesystem available on freebsd). I didn't experiences the hanging behavior I did with journaled ufs, but it's considerably slower than standard ufs (1/2 slower writes, 1/10 slower reads)... From owner-freebsd-geom@FreeBSD.ORG Sun Oct 12 14:13:40 2008 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E5F6B1065686 for ; Sun, 12 Oct 2008 14:13:40 +0000 (UTC) (envelope-from gcubfg-freebsd-geom@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 6F5D08FC17 for ; Sun, 12 Oct 2008 14:13:40 +0000 (UTC) (envelope-from gcubfg-freebsd-geom@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Kp1hR-00076K-Jd for freebsd-geom@freebsd.org; Sun, 12 Oct 2008 14:13:37 +0000 Received: from 89-172-40-227.adsl.net.t-com.hr ([89.172.40.227]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 12 Oct 2008 14:13:37 +0000 Received: from ivoras by 89-172-40-227.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 12 Oct 2008 14:13:37 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-geom@freebsd.org From: Ivan Voras Date: Sun, 12 Oct 2008 16:13:26 +0200 Lines: 70 Message-ID: References: <48DE439C.4050505@zirakzigil.org> <48F1C760.1080902@zirakzigil.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig944EA1D4A61F55876793181E" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 89-172-40-227.adsl.net.t-com.hr User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) In-Reply-To: <48F1C760.1080902@zirakzigil.org> X-Enigmail-Version: 0.95.7 Sender: news Subject: Re: Problems with journal? X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Oct 2008 14:13:41 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig944EA1D4A61F55876793181E Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Giulio Ferro wrote: > Giulio Ferro wrote: >> I'm experiencing very serious delay issues in 2 production servers. > [...] >> >> I hope any of you can help me look in the right direction, and point >> me to any further tests to try or tunable >> to set... >> >> Thanks in advance. >> >=20 > I didn't receive any answer to this, so I'm guessing ufs journal > is abandoned or there is no interest in supporting it in production > environment. > Anyway I removed it from my servers and reverted to standard UFS, > so the problems disappeared. I also tried zfs (the only other journale= d > filesystem available on freebsd). I didn't experiences the hanging beha= vior > I did with journaled ufs, but it's considerably slower than standard uf= s > (1/2 slower writes, 1/10 slower reads)... Both gjournal and ZFS are still "experimental" as far as stability and performance is concerned (actually, I have the feeling that gjournal itself is simple enough to be ok but it exposes timing problems with UFS...), but you might help by giving more information about your problem= : * send output from top (with "S" mode) and vmstat ("vmstat 1") when you experience your slowdown problem * create a kernel core dump (see http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kern= eldebug.html#KERNELDEBUG-OBTAIN and http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kern= eldebug-online-ddb.html , enter "call doadump" on the online debugger prompt) when your problem starts. * attach a debugger to the kernel dump, record and send output of "ps", "show pcpu", "show allpcpu", "show locks", "show alllocks", "show lockedvnods" and "alltrace." These are just generic tips, I don't have an idea what might cause your problems (so some of the information I requested might be useless, but better to send as much as possible; maybe someone will see something interesting). --------------enig944EA1D4A61F55876793181E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkjyBgYACgkQldnAQVacBciHwgCdFV2YnrX1SQ7gcYcEenwID4gi 0OUAoJs/Lu/psDFfCkqeBxUDMp3kM7Mx =16uK -----END PGP SIGNATURE----- --------------enig944EA1D4A61F55876793181E-- From owner-freebsd-geom@FreeBSD.ORG Sun Oct 12 16:54:21 2008 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C24A51065687 for ; Sun, 12 Oct 2008 16:54:21 +0000 (UTC) (envelope-from 000.fbsd@quip.cz) Received: from elsa.codelab.cz (elsa.codelab.cz [91.103.162.4]) by mx1.freebsd.org (Postfix) with ESMTP id 7E1E18FC16 for ; Sun, 12 Oct 2008 16:54:21 +0000 (UTC) (envelope-from 000.fbsd@quip.cz) Received: from localhost (localhost.codelab.cz [127.0.0.1]) by elsa.codelab.cz (Postfix) with ESMTP id B7F0919E027; Sun, 12 Oct 2008 18:54:19 +0200 (CEST) Received: from [192.168.1.2] (r5bb235.net.upc.cz [86.49.61.235]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by elsa.codelab.cz (Postfix) with ESMTPSA id 9B4BA19E019; Sun, 12 Oct 2008 18:54:17 +0200 (CEST) Message-ID: <48F22BDB.2040803@quip.cz> Date: Sun, 12 Oct 2008 18:54:51 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 X-Accept-Language: cz, cs, en, en-us MIME-Version: 1.0 To: Giulio Ferro References: <48DE439C.4050505@zirakzigil.org> <48F1C760.1080902@zirakzigil.org> In-Reply-To: <48F1C760.1080902@zirakzigil.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-geom@freebsd.org Subject: Re: Problems with journal? X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Oct 2008 16:54:21 -0000 Giulio Ferro wrote: > Giulio Ferro wrote: > >> I'm experiencing very serious delay issues in 2 production servers. > > [...] > >> >> I hope any of you can help me look in the right direction, and point >> me to any further tests to try or tunable >> to set... >> >> Thanks in advance. >> > > I didn't receive any answer to this, so I'm guessing ufs journal > is abandoned or there is no interest in supporting it in production > environment. > Anyway I removed it from my servers and reverted to standard UFS, > so the problems disappeared. I also tried zfs (the only other journaled > filesystem available on freebsd). I didn't experiences the hanging behavior > I did with journaled ufs, but it's considerably slower than standard ufs > (1/2 slower writes, 1/10 slower reads)... I am using gjournal on few production machines (not heavily IO loaded) without any hangs. Form time to time I get this message in log: fsync: giving up on dirty 0xc553e880: tag devfs, type VCHR usecount 1, writecount 0, refcount 5305 mountedhere 0xc54a1c00 flags () v_object 0xc5526e88 ref 0 pages 33571 lock type devfs: EXCL (count 1) by thread 0xc52aaa50 (pid 41) dev da0s2e.journal GEOM_JOURNAL: Cannot suspend file system /vol0 (error=35). I asked this message in the list 6 month ago and Eric Anderson wrote that it shouldn't be a problem. I tested ZFS and UFS comparing speed of copying ports tree in incremental endless loop - UFS became slower and slower with more used inodes, but ZFS had same speed even on almost full partition. At the end of the test, ZFS was about three times faster than UFS+SU. Miroslav Lachman From owner-freebsd-geom@FreeBSD.ORG Mon Oct 13 11:06:50 2008 Return-Path: Delivered-To: freebsd-geom@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0B344106569A for ; Mon, 13 Oct 2008 11:06:50 +0000 (UTC) (envelope-from owner-bugmaster@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id EB4598FC1F for ; Mon, 13 Oct 2008 11:06:49 +0000 (UTC) (envelope-from owner-bugmaster@FreeBSD.org) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id m9DB6ngK029429 for ; Mon, 13 Oct 2008 11:06:49 GMT (envelope-from owner-bugmaster@FreeBSD.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id m9DB6nBT029425 for freebsd-geom@FreeBSD.org; Mon, 13 Oct 2008 11:06:49 GMT (envelope-from owner-bugmaster@FreeBSD.org) Date: Mon, 13 Oct 2008 11:06:49 GMT Message-Id: <200810131106.m9DB6nBT029425@freefall.freebsd.org> X-Authentication-Warning: freefall.freebsd.org: gnats set sender to owner-bugmaster@FreeBSD.org using -f From: FreeBSD bugmaster To: freebsd-geom@FreeBSD.org Cc: Subject: Current problem reports assigned to freebsd-geom@FreeBSD.org X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Oct 2008 11:06:50 -0000 Note: to view an individual PR, use: http://www.freebsd.org/cgi/query-pr.cgi?pr=(number). The following is a listing of current problems submitted by FreeBSD users. These represent problem reports covering all versions including experimental development code and obsolete releases. S Tracker Resp. Description -------------------------------------------------------------------------------- o kern/126902 geom [geom] [geom_label] Kernel panic during install boot o kern/124973 geom [gjournal] [patch] boot order affects geom_journal con o kern/124969 geom gvinum(8): gvinum raid5 plex does not detect missing s o kern/124294 geom [geom] gmirror(8) have inappropriate logic when workin o kern/124130 geom [gmirror][usb] gmirror fails to start usb devices that o kern/123962 geom [panic] gjournal(8): gjournal (455Gb data, 8Gb journal o kern/123630 geom [patch] [gmirror] gmirror doesnt allow the original dr o kern/123122 geom [geom] GEOM / gjournal kernel lock f kern/122415 geom [geom] UFS labels are being constantly created and rem o kern/122067 geom [geom] [panic] Geom crashed during boot o kern/121559 geom [patch] [geom] geom label class allows to create inacc o kern/121364 geom [gmirror] Removing all providers create a "zombie" mir o kern/120231 geom [geom] GEOM_CONCAT error adding second drive o kern/120044 geom [msdosfs] [geom] incorrect MSDOSFS label fries adminis o kern/120021 geom [geom] [panic] net-p2p/qbittorrent crashes system when o kern/119743 geom [geom] geom label for cds is keeped after dismount and f kern/115547 geom [geom] [patch] [request] let GEOM Eli get password fro o kern/114532 geom [geom] GEOM_MIRROR shows up in kldstat even if compile o kern/113957 geom [gmirror] gmirror is intermittently reporting a degrad o kern/113885 geom [gmirror] [patch] improved gmirror balance algorithm o kern/113837 geom [geom] unable to access 1024 sector size storage o kern/113419 geom [geom] geom fox multipathing not failing back p bin/110705 geom gmirror(8) control utility does not exit with correct o kern/107707 geom [geom] [patch] [request] add new class geom_xbox360 to o kern/104389 geom [geom] [patch] sys/geom/geom_dump.c doesn't encode XML o kern/98034 geom [geom] dereference of NULL pointer in acd_geom_detach o kern/94632 geom [geom] Kernel output resets input while GELI asks for o kern/90582 geom [geom] [panic] Restore cause panic string (ffs_blkfree o bin/90093 geom fdisk(8) incapable of altering in-core geometry a kern/89660 geom [vinum] [patch] [panic] due to g_malloc returning null o kern/89546 geom [geom] GEOM error s kern/89102 geom [geom] [panic] panic when forced unmount FS from unplu o kern/87544 geom [gbde] mmaping large files on a gbde filesystem deadlo o kern/84556 geom [geom] GBDE-encrypted swap causes panic at shutdown o kern/79251 geom [2TB] newfs fails on 2.6TB gbde device o kern/79035 geom [vinum] gvinum unable to create a striped set of mirro o bin/78131 geom gbde(8) "destroy" not working. s kern/73177 geom kldload geom_* causes panic due to memory exhaustion 38 problems total. From owner-freebsd-geom@FreeBSD.ORG Mon Oct 13 20:45:23 2008 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E28261065690 for ; Mon, 13 Oct 2008 20:45:23 +0000 (UTC) (envelope-from auryn@zirakzigil.org) Received: from mail.giulioferro.it (mail.giulioferro.it [85.18.102.52]) by mx1.freebsd.org (Postfix) with ESMTP id 9FCBD8FC12 for ; Mon, 13 Oct 2008 20:45:23 +0000 (UTC) (envelope-from auryn@zirakzigil.org) Received: from localhost (localhost [127.0.0.1]) by mail.giulioferro.it (Postfix) with ESMTP id 2803B33C39; Mon, 13 Oct 2008 22:46:54 +0200 (CEST) X-Virus-Scanned: amavisd-new at giulioferro.it Received: from mail.giulioferro.it ([127.0.0.1]) by localhost (aurynwork1sv1.giulioferro.it [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MGZaQovUQ7j2; Mon, 13 Oct 2008 22:46:50 +0200 (CEST) Received: from [192.168.229.16] (localhost [127.0.0.1]) (Authenticated sender: gferro@giulioferro.it) by mail.giulioferro.it (Postfix) with ESMTP id 4CC4733C37; Mon, 13 Oct 2008 22:46:50 +0200 (CEST) Message-ID: <48F3B35D.9060507@zirakzigil.org> Date: Mon, 13 Oct 2008 22:45:17 +0200 From: Giulio Ferro User-Agent: Thunderbird 2.0.0.17 (X11/20080925) MIME-Version: 1.0 To: Miroslav Lachman <000.fbsd@quip.cz>, freebsd-geom@freebsd.org References: <48DE439C.4050505@zirakzigil.org> <48F1C760.1080902@zirakzigil.org> <48F22BDB.2040803@quip.cz> In-Reply-To: <48F22BDB.2040803@quip.cz> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: Re: Problems with journal? X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Oct 2008 20:45:24 -0000 Miroslav Lachman wrote: > Giulio Ferro wrote: >> Giulio Ferro wrote: >> >>> I'm experiencing very serious delay issues in 2 production servers. >> >> [...] >> >>> >>> I hope any of you can help me look in the right direction, and point >>> me to any further tests to try or tunable >>> to set... >>> >>> Thanks in advance. >>> >> >> I didn't receive any answer to this, so I'm guessing ufs journal >> is abandoned or there is no interest in supporting it in production >> environment. >> Anyway I removed it from my servers and reverted to standard UFS, >> so the problems disappeared. I also tried zfs (the only other journaled >> filesystem available on freebsd). I didn't experiences the hanging >> behavior >> I did with journaled ufs, but it's considerably slower than standard ufs >> (1/2 slower writes, 1/10 slower reads)... > > I am using gjournal on few production machines (not heavily IO loaded) > without any hangs. I'm glad for you. Unfortunately, as I reported in my original message, if the filesystem is cluttered enough even a simple "find" command can very nearly freeze the system. I had jails on the journaled partition, each running a heavily loaded db. > > I tested ZFS and UFS comparing speed of copying ports tree in > incremental endless loop - UFS became slower and slower with more used > inodes, but ZFS had same speed even on almost full partition. At the > end of the test, ZFS was about three times faster than UFS+SU. I believe ZFS is the best thing happened to freebsd in a long time, and I use it full time in my desktops. Anyway I deemed it unusable in my production setup, since a 10 times slower read can't really keep up with that environment. And there is no danger of reaching disk capacity anytime soon... :-) From owner-freebsd-geom@FreeBSD.ORG Fri Oct 17 17:04:06 2008 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 68C2D10656A1 for ; Fri, 17 Oct 2008 17:04:06 +0000 (UTC) (envelope-from bsd@fluffles.net) Received: from mail.fluffles.net (fluffles.net [80.69.95.190]) by mx1.freebsd.org (Postfix) with ESMTP id 2AE228FC15 for ; Fri, 17 Oct 2008 17:04:05 +0000 (UTC) (envelope-from bsd@fluffles.net) Received: from [10.10.0.2] (cust.95.160.adsl.cistron.nl [195.64.95.160]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: info@fluffles.net) by mail.fluffles.net (Postfix) with ESMTP id 0CFB7B29D6A; Fri, 17 Oct 2008 19:04:39 +0200 (CEST) Message-ID: <48F8C662.80602@fluffles.net> Date: Fri, 17 Oct 2008 19:07:46 +0200 From: "fluffles.net" User-Agent: Thunderbird 2.0.0.17 (X11/20080925) MIME-Version: 1.0 To: Giulio Ferro References: <48DE439C.4050505@zirakzigil.org> <48F1C760.1080902@zirakzigil.org> <48F22BDB.2040803@quip.cz> <48F3B35D.9060507@zirakzigil.org> In-Reply-To: <48F3B35D.9060507@zirakzigil.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Miroslav Lachman <000.fbsd@quip.cz>, freebsd-geom@freebsd.org Subject: Re: Problems with journal? X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Oct 2008 17:04:06 -0000 Giulio Ferro wrote: > Miroslav Lachman wrote: >> Giulio Ferro wrote: >>> Giulio Ferro wrote: >>> >>>> I'm experiencing very serious delay issues in 2 production servers. >>> >>> [...] >>> >>>> >>>> I hope any of you can help me look in the right direction, and >>>> point me to any further tests to try or tunable >>>> to set... >>>> >>>> Thanks in advance. >>>> >>> >>> I didn't receive any answer to this, so I'm guessing ufs journal >>> is abandoned or there is no interest in supporting it in production >>> environment. >>> Anyway I removed it from my servers and reverted to standard UFS, >>> so the problems disappeared. I also tried zfs (the only other >>> journaled >>> filesystem available on freebsd). I didn't experiences the hanging >>> behavior >>> I did with journaled ufs, but it's considerably slower than standard >>> ufs >>> (1/2 slower writes, 1/10 slower reads)... >> >> I am using gjournal on few production machines (not heavily IO >> loaded) without any hangs. > > I'm glad for you. Unfortunately, as I reported in my original message, if > the filesystem is cluttered enough even a simple "find" command can > very nearly freeze the system. Hi Giulio, Have you checked that your disks or array is not using PIO mode? Which uses hefty interrupts which will bring any system to its knees even on light I/O. For ata devices use atacontrol mode for scsi devices including hardware RAID lookup dmesg. I'm not sure if hardware RAID can use PIO, but any hybrid RAID / Fake RAID can. Also, during the journal commit, you may experience a delay. Could you provide some benchmarks like bonnie on the volume, without background I/O if possible. Not sure if any of this is related to your problem, though. Kind regards, Veronica From owner-freebsd-geom@FreeBSD.ORG Sat Oct 18 06:46:48 2008 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 458E81065687 for ; Sat, 18 Oct 2008 06:46:48 +0000 (UTC) (envelope-from antik@bsd.ee) Received: from sorbesgroup.com (mail.sorbesgroup.com [217.159.241.118]) by mx1.freebsd.org (Postfix) with ESMTP id 011288FC19 for ; Sat, 18 Oct 2008 06:46:47 +0000 (UTC) (envelope-from antik@bsd.ee) Received: from localhost (localhost.localdomain [127.0.0.1]) by sorbesgroup.com (Postfix) with ESMTP id 3C9723C52B78 for ; Sat, 18 Oct 2008 09:43:15 +0300 (EEST) Received: from sorbesgroup.com ([127.0.0.1]) by localhost (sorbesgroup.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 24965-04 for ; Sat, 18 Oct 2008 09:43:14 +0300 (EEST) Received: from [127.0.0.1] (unknown [192.168.0.80]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by sorbesgroup.com (Postfix) with ESMTP id 82BAF3C52B72 for ; Sat, 18 Oct 2008 09:43:14 +0300 (EEST) Message-ID: <48F9865A.5050304@bsd.ee> Date: Sat, 18 Oct 2008 09:46:50 +0300 From: Andrei Kolu User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) MIME-Version: 1.0 To: freebsd-geom@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at localhost Subject: gmirror inconsistent filesystem X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Oct 2008 06:46:48 -0000 Hi, I encountered strange problem yesterday with gmirror setup on amd64 version of FreeBSD 7.1BETA2- after successful syncronization I shut down system cleanly and on bootup it said that /var filesystem is not clean and stopped rc startup script. I did "fsck -y /var" and mounted everything with "mount -a"- no problems on gmirror. Reboot and all starts over again- inconsistent /var... All other filesystems are clean. Everything works with gmirror without problem on 32bit FreeBSD 7.0RELEASE. Hardware is Asus P5GC-MX/1333, 2xMaxtor 160GB sata, 2x1GB Kingston 667MHz ddr2. Celeron dual-core 1,6GHz.