dockstar# xz libtool-2.2.6b.tar.lzma dockstar# rm libtool-2.2.6b.tar dockstar# xz -d libtool-2.2.6b.tar.lzma zsh: bus error (core dumped) xz -d libtool-2.2.6b.tar.lzma dockstar# gdb core-file xz.core GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "arm-marcel-freebsd"...core-file: No such file or directory. Core was generated by `xz'. Program terminated with signal 10, Bus error. #0 0x20069f34 in ?? ()