From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 28Bx5BdvlgnO for ; Wed, 21 Sep 2011 04:04:00 +0200 (CEST) Received: from smtp.meme.com (janus.meme.com [69.17.73.118]) by mail.saout.de (Postfix) with ESMTP for ; Wed, 21 Sep 2011 04:04:00 +0200 (CEST) Received: from mofo.meme.com (unknown [192.168.1.2]) by smtp.meme.com (Postfix) with ESMTP id 0E1B4A261 for ; Tue, 20 Sep 2011 21:03:57 -0500 (CDT) Received: from mofo (localhost.localdomain [127.0.0.1]) by mofo.meme.com (Postfix) with ESMTP id 6612B43D0F for ; Tue, 20 Sep 2011 21:03:56 -0500 (CDT) Date: Tue, 20 Sep 2011 21:03:56 -0500 From: "Karl O. Pinc" In-Reply-To: <20110920234354.GA30110@tansi.org> (from arno@wagner.name on Tue Sep 20 18:43:54 2011) Message-Id: <1316570636.4663.3@mofo> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [dm-crypt] Password is not accepted List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de On 09/20/2011 06:43:54 PM, Arno Wagner wrote: > Very strange indeed. Is this repeatable? This is strictly an FYI in case anyone's interested. This seems like a good time to mention a similar strange issue. I've chalked it up to too-new hardware and have yet to try with the latest kernel.org kernel, but running Debian Squeeze, with either the stock 2.6.32 kernel or the backports 2.6.39 kernel I see failure to enter the luks password. This is on an Acer Aspire One D255E-13647 with a manufacture date of 2011-01. This is all driven by the initramfs. What happens is that, sometimes, the screen goes black for perhaps 15 or more seconds starting about 3 or 4 seconds after the luks password prompt. Attempts to enter the password or portion thereof during this time always result in failure. I believe I've seen the same problem without the screen going black as well. If I wait a long time to enter the password all is well. In any case I've not tracked the details closely and=20 am waiting until I get around to trying a newer kernel=20 to see if the problem goes away. > Meybe a thermal issue with RAM, CPU or PSU that has the > password iterations fail when cold and work when warmed=20 > up? For CPU/RAM this would be strance as cold CMOS=20 > circuits work better than hot ones. For the PSU, it > is possible that failing capacitors reconstiture a bit > after warm up. Anyways, sounds like a hardware issue to=20 > me. >=20 > Arno >=20 > On Tue, Sep 20, 2011 at 09:13:32PM +0200, Ask Me wrote: > > Hi > >=20 > > Now I'm having a strange problem. First I thought that I was=20 > getting > old and had forgot my password but now it happens more then once. > >=20 > > When I reboot my computer and try to open my encrypted device with > "cryptsetup luksOpen /dev/vg_home/home_private lv_encr" I get the > message that my password is not accepted. > > But if I reboot it again and wait for a few minutes and try the > command again it's successful.=20 > > Is it possible that it needs time to activate? It's a LVM array.=20 > But > my /tmp and swap is encrypted at boot and they works (I hope =3D) ) > >=20 > > My setup is > > sda1 -> LVM -> dm_crypt -> xfs > >=20 > > //Martin >=20 > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@saout.de > > http://www.saout.de/mailman/listinfo/dm-crypt >=20 >=20 > --=20 > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > arno@wagner.name=20 > 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 >=20 > If it's in the news, don't worry about it. The very definition of=20 > "news" is "something that hardly ever happens." -- Bruce Schneier=20 > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt >=20 >=20 Karl Free Software: "You don't pay back, you pay forward." -- Robert A. Heinlein