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 am waiting until I get around to trying a newer kernel 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 > up? For CPU/RAM this would be strance as cold CMOS > 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 > me. > > Arno > > On Tue, Sep 20, 2011 at 09:13:32PM +0200, Ask Me wrote: > > Hi > > > > Now I'm having a strange problem. First I thought that I was > getting > old and had forgot my password but now it happens more then once. > > > > 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. > > Is it possible that it needs time to activate? It's a LVM array. > But > my /tmp and swap is encrypted at boot and they works (I hope =) ) > > > > My setup is > > sda1 -> LVM -> dm_crypt -> xfs > > > > //Martin > > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@xxxxxxxx > > http://www.saout.de/mailman/listinfo/dm-crypt > > > -- > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > arno@xxxxxxxxxxx > 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 > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt > > Karl <kop@xxxxxxxx> Free Software: "You don't pay back, you pay forward." -- Robert A. Heinlein _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
