From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <wagner@tansi.org>
Received: from mail.saout.de ([127.0.0.1])
 by localhost (mail.saout.de [127.0.0.1]) (amavisd-new, port 10024)
 with ESMTP id WRLUcr7SZ438 for <dm-crypt@saout.de>;
 Thu, 15 Sep 2011 18:06:45 +0200 (CEST)
Received: from v4.tansi.org (ns.km33513-03.keymachine.de [87.118.94.3])
 by mail.saout.de (Postfix) with ESMTP
 for <dm-crypt@saout.de>; Thu, 15 Sep 2011 18:06:45 +0200 (CEST)
Received: from gatewagner.dyndns.org (84-74-163-71.dclient.hispeed.ch
 [84.74.163.71]) by v4.tansi.org (Postfix) with ESMTPA id B1DAD2062E8
 for <dm-crypt@saout.de>; Thu, 15 Sep 2011 18:06:45 +0200 (CEST)
Date: Thu, 15 Sep 2011 18:06:45 +0200
From: Arno Wagner <arno@wagner.name>
Message-ID: <20110915160644.GA5473@tansi.org>
References: <CANGzC2y4NOZxda_jSq_szh_5PKGTzDroCHA3OBOqVDmwev9J9w@mail.gmail.com>
 <CANGzC2zfxuOyi4yys+aMgkbXXMG7fsz6YXaWPo6dQdgd_R4XOw@mail.gmail.com>
 <1315506605.6590.0@mofo>
 <CANGzC2y=gmHQ5pxfbeFrnJaC1TkCTpDTEkY_EUbzaJ8+ojSfVw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CANGzC2y=gmHQ5pxfbeFrnJaC1TkCTpDTEkY_EUbzaJ8+ojSfVw@mail.gmail.com>
Subject: Re: [dm-crypt] openLuks failing - semaphore weird bug involved ?
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: dm-crypt@saout.de

On Thu, Sep 15, 2011 at 11:54:30AM -0400, Ric Flomag wrote:
> >
> > If the drive has smart you could ask the drive's diagnostics
> > if there's any indication of trouble.
> >
> >
> I am not familiar with SMART. It reports 4 pending sectors and nothing else
> wrong. 

That is pretty bad. It means 4 unreadable sectors. Modern HDDs
try pretty had to read damaged sectors ond usually succeed. 

>I have run a "badblocks -nvs
> /dev/sdb3<https://one.ubuntu.com/dev/sdb3>",
> it did not find any error... And after this, SMART still reports 4 pending
> sectors.

Meaning the pending sectors are someplae else.

> Any clue about how investigating further ?

badblocks on /dev/sdb.

Arno

> Regards.
> 
> 
> 2011/9/8 Karl O. Pinc <kop@meme.com>
> 
> > On 09/08/2011 10:46:42 AM, Ric Flomag wrote:
> >
> >
> > > What worries me is that I have no clue what happened. A damage to the
> > > header
> > > is it possible without any signs of it ?
> >
> > I've not been paying attention, but have a thought.
> >
> > If the drive has smart you could ask the drive's diagnostics
> > if there's any indication of trouble.
> >
> > Regards,
> >
> > Karl <kop@meme.com>
> > Free Software:  "You don't pay back, you pay forward."
> >                 -- Robert A. Heinlein
> >
> >

> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt


-- 
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier