root@Control:~# crushtool -d foo
terminate called after throwing an instance of 'ceph::buffer::malformed_input'
  what():  buffer::malformed_input: bad magic number
*** Caught signal (Aborted) **
 in thread 7f1556119780
 ceph version 0.48argonaut (commit:c2b20ca74249892c8e5e40c12aa14446a2bf2030)
 1: crushtool() [0x437f0a]
 2: (()+0xfcb0) [0x7f15557b4cb0]
 3: (gsignal()+0x35) [0x7f1554801445]
 4: (abort()+0x17b) [0x7f1554804bab]
 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f155514f69d]
 6: (()+0xb5846) [0x7f155514d846]
 7: (()+0xb5873) [0x7f155514d873]
 8: (()+0xb596e) [0x7f155514d96e]
 9: (CrushWrapper::decode(ceph::buffer::list::iterator&)+0xdb7) [0x4554f7]
 10: (main()+0x22f4) [0x430044]
 11: (__libc_start_main()+0xed) [0x7f15547ec76d]
 12: crushtool() [0x4327f9]
2012-07-13 19:00:30.196212 7f1556119780 -1 *** Caught signal (Aborted) **
 in thread 7f1556119780

 ceph version 0.48argonaut (commit:c2b20ca74249892c8e5e40c12aa14446a2bf2030)
 1: crushtool() [0x437f0a]
 2: (()+0xfcb0) [0x7f15557b4cb0]
 3: (gsignal()+0x35) [0x7f1554801445]
 4: (abort()+0x17b) [0x7f1554804bab]
 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f155514f69d]
 6: (()+0xb5846) [0x7f155514d846]
 7: (()+0xb5873) [0x7f155514d873]
 8: (()+0xb596e) [0x7f155514d96e]
 9: (CrushWrapper::decode(ceph::buffer::list::iterator&)+0xdb7) [0x4554f7]
 10: (main()+0x22f4) [0x430044]
 11: (__libc_start_main()+0xed) [0x7f15547ec76d]
 12: crushtool() [0x4327f9]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

--- begin dump of recent events ---
     0> 2012-07-13 19:00:30.196212 7f1556119780 -1 *** Caught signal (Aborted) **
 in thread 7f1556119780

 ceph version 0.48argonaut (commit:c2b20ca74249892c8e5e40c12aa14446a2bf2030)
 1: crushtool() [0x437f0a]
 2: (()+0xfcb0) [0x7f15557b4cb0]
 3: (gsignal()+0x35) [0x7f1554801445]
 4: (abort()+0x17b) [0x7f1554804bab]
 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f155514f69d]
 6: (()+0xb5846) [0x7f155514d846]
 7: (()+0xb5873) [0x7f155514d873]
 8: (()+0xb596e) [0x7f155514d96e]
 9: (CrushWrapper::decode(ceph::buffer::list::iterator&)+0xdb7) [0x4554f7]
 10: (main()+0x22f4) [0x430044]
 11: (__libc_start_main()+0xed) [0x7f15547ec76d]
 12: crushtool() [0x4327f9]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

--- end dump of recent events ---
Aborted