From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <mbroz@redhat.com>
Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28])
 by mail.saout.de (Postfix) with ESMTP
 for <dm-crypt@saout.de>; Fri, 12 Nov 2010 22:01:05 +0100 (CET)
Message-ID: <4CDDAB0C.1020603@redhat.com>
Date: Fri, 12 Nov 2010 22:01:00 +0100
From: Milan Broz <mbroz@redhat.com>
MIME-Version: 1.0
References: <AANLkTi=KAJOjf6Ac+8xU55+nrx6W1OH_-K18+dvnEm_n@mail.gmail.com>
 <20101112165136.GA23352@tansi.org>
 <AANLkTim_8EEn8861FzX-kMop=KhRiAVgAbeczuSrYWmS@mail.gmail.com>
In-Reply-To: <AANLkTim_8EEn8861FzX-kMop=KhRiAVgAbeczuSrYWmS@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Subject: Re: [dm-crypt] system freezes when using swap that is encrypted
List-Id: <dm-crypt.saout.de>
List-Unsubscribe: <http://www.saout.de/mailman/options/dm-crypt>,
 <mailto:dm-crypt-request@saout.de?subject=unsubscribe>
List-Archive: <http://www.saout.de/pipermail/dm-crypt>
List-Post: <mailto:dm-crypt@saout.de>
List-Help: <mailto:dm-crypt-request@saout.de?subject=help>
List-Subscribe: <http://www.saout.de/mailman/listinfo/dm-crypt>,
 <mailto:dm-crypt-request@saout.de?subject=subscribe>
To: Nicolas Bock <nicolasbock@gmail.com>
Cc: dm-crypt@saout.de


On 11/12/2010 08:32 PM, Nicolas Bock wrote:
> As an aside, would it make sense to go back in kernel versions to a time before these write-barriers? Do I need those anyway? Where they introduced recently?

I don't think that barriers should be problem here, but everything is possible:-)
How is that swap configured - through /etc/crypttab? (send dmsetup table; mount )

When it freezes, can you try to get full process backtrace and sent it to me?
Just run "echo t>/proc/sysrq-trigger" or activate sysrq and do it from keybuard (alt-sysrq+t),
(maybe serial console is needed here, but it should print status to syslog)

Milan