Christoph Anton Mitterer wrote: > <when I diff -q -r /mnt/unencrypted /mnt/encrypted/ here, everything is > ok but this is just, because those files are still cached in RAM> > <unmount + close mapping + reboot> > <create mappings and mount everything again> > > Here's the first problem: > 1) When I now diff the two versions again (the unencrypted and the one > from the encrypted partition) I get differences... > I'm quite sure that this is not due to damaged RAM or harddisk (checked > several times with memtest and badblocks) and the corruption is always > the same, although not fully reproducibly. > The filesystem tree itself seems to be the same on both discs (but I'm > not sure if the permissions and owners are copied correctly), but there > are differences in some (though not all) files. > The difference is always the same, that for one or more bytes of the > affected files, the hexcode is reduced by 0x10 > That is: > If the file contains a byte "T" (0x74) on the unencrypted partition it > will have a "D" (0x64) on the encrypted. Hi, Are you sure, that your USB-stick is not faulty ? Could you reproduce it with different piece of hw ? (Several strange reports for dm-crypt over USB were identified to be USB hw faults.) > 2) The second bug happens only rarely and leads to a panic. > Unfortunately it's difficult to reproduce, but it always happened when I > mkfs.ext3 on the /dev/mapper/sda2. > There's a stack-trace printed which clearly involves some dmcrypt > lines... But no stack trace attached here... please attach it. It can be known bug which was fixed in stable version some time ago see http://lkml.org/lkml/2007/7/20/211 > btw: are there any other currently known bugs in dmcrypt? Or is it > considered as "production stable"? No known bugs causing data corruption, no such reports so far for stable kernel. Milan -- mbroz@xxxxxxxxxx --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
