I am using pclinuxos and "uname -a" gives: Linux mtz 3.2.18-pclos2.bfs #1 SMP PREEMPT Thu May 24 04:44:50 CEST 2012 i686 i686 i386 GNU/Linux Using this kernel version: i created a 2GB file using dd, then i opened a plain mapper on the file and then attempted to write 1GB of data through the mapper using dd and the system lock up. I tried it 3 times and it lock up 3 times. writing 100MB or smaller amount of data does not hang the system.It seem the lock up occurs when a certain number of data is passed. is this problem known? _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt