gdb drops out with 'I/O possible message'

[Andrew Walrond]

What might cause gdb to do this?

$ sudo gdb /bin/ruby
GNU gdb 6.3
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 "x86_64-unknown-linux-gnu"...Using host 
libthread_db library "/pkg/glibc/lib/libthread_db.so.1".

(gdb) set args
(gdb) set args -- sbin/heretix --cf ruby version=stable --ec
(gdb) run
Starting program: /bin/ruby -- sbin/heretix --cf ruby version=stable --ec
No config directory found for kernel version 2.6.14
Build settings:  cpu=x86_64  build-jobs=5  make-jobs=4
Building symlink database...
Processing......
  +S ruby                 (version='20051027' cpu='x86_64')
    [ruby]

Elapsed time: 0h 2m 3s

I/O possible
sbin/heretix:461: [BUG] Segmentation fault
ruby 1.8.3 (2005-10-26) [x86_64-linux]

andrew@orac main $