Arch Linux

ktwo

Member

Registered: 2012-01-22

Posts: 1

truecrypt7.1 crypto after kernel update

hi, today after the update kmod + kernel i wasnt able to mount my truecrypt volumes anymore (it worked before)

Linux 3.2.1-1-ARCH on armv5tel  (sorry i know its not x86, but maybe you can help me too since it should be a rather generic problem)

ive also recompiled truecrypt7 for this specific kernel

now following happens:

truecrypt /path/to/container /mountpoint
Error: device-mapper: reload ioctl failed: No such file or directory

nano /var/log/errors.log
kernel: [ 1839.631001] device-mapper: table: 254:0: crypt: Error allocating crypto tfm

however when i use -m=nokernelcrypto it works. however this really gives me poor performance, considering it is only a 1.2Ghz CPU

some other info which might help

 zcat /proc/config.gz | egrep "CONFIG_CRYPTO_XTS|CONFIG_CRYPTO_LRW|AES|DM_CRYPT|CONFIG_BLK_DEV_DM|CONFIG_CRYPTO=m"
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_AES=y

[# lsmod
Module                  Size  Used by
dm_crypt               14106  0
dm_mod                 60254  1 dm_crypt
fuse                   59016  2
ipv6                  254908  14
mv_cesa                 9269  0

Thanks, im happy for each input!
if you need more info, ill give it

sorry if the category of the thread is not 100% correct, but i thought it is more a kernel problem since it happened directly after the kernel update, and the fact that nokernelcrypto works was letting me think it was a kernel problem

Last edited by ktwo (2012-01-22 17:05:34)