From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [10.15.80.229] (dhcp80-229.msp.redhat.com [10.15.80.229]) by pobox.corp.redhat.com (8.12.8/8.12.8) with ESMTP id k3JDwuVP009807 for ; Wed, 19 Apr 2006 09:58:57 -0400 Mime-Version: 1.0 (Apple Message framework v623) In-Reply-To: <1145364034.3003.55.camel@localhost> References: <1145364034.3003.55.camel@localhost> Message-Id: From: Jonathan E Brassow Subject: Re: [linux-lvm] dmeventd_mirror problem and some questions. Date: Wed, 19 Apr 2006 09:00:39 -0500 Content-Transfer-Encoding: 8bit Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="utf-8"; format="flowed" To: LVM general discussion and development There are some kernel patches that you need. Either way, the DSO shouldn't be crashing, so I'll look into that. Kernel patches are located at http://www.brassow.com/mirroring. Last updated on April 3rd... I'll be updating those either today or tomorrow as well. brassow On Apr 18, 2006, at 7:40 AM, Simone Gotti wrote: > Hi All, > > I was curious to try the experimental dmeventd + the mirror checking > dso. > Everytime I created a mirror volume, dmeventd was crashing when the > mirror finished the syncing process. > I tracked it down to _get_mirror_event that is expeting a return string > from the status ioctl to dm like "2 253:4 253:5 400/400 1 AA 3 cluster > 253:3 A" but it gets only "2 253:4 253:5 400/400" so it SIGSEGV when is > going to read over the number of returned arguments in the "args" array > from split_words. > > The same string is returned by "dmsetup status". > > Do these informations aren't already implemented in the ioctl, or are > there some patches around that I can try? (my kernel is the latest > available in fedora rawhide: 2.6.16-1.2131_FC6) > > Another question, If I understand it correctly, the mirror library for > dmeventd will look to possible problems (eg the lost of a PV containing > a mirror), and it will call the right lvm command to fix it? > For example, if a PV containing a side of a 2 way mirrored volume is > lost, what are the various actions that it will do (I noticed an > lvreduce --removemissing, but my fear is that this command will also > remove unmirrored volumes)? > > Thanks! > > Bye! > > Simone Gotti. > > > > > -- > Email.it, the professional e-mail, gratis per te: > http://www.email.it/f > > Sponsor: > Problemi di Liquidit�? Con Logos Finanziaria 30.000 � in 24 ore a > dipendenti e lavoratori autonomi con rimborsi fino a 120 mesi, clicca > qui > * > Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=2911&d=18-4 > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ >