I've tried having swap on, or swap off, and two kernels, 2.4.3 and 2.4.14 with loop-AES version 1.5b It seems to happen when I have a high I/O load involving an encrypted, loop-mounted file... Can anyone shed some light on this problem? Thanks, -Tim - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/