libstdc++.so.6 doing SEGV when run mysql-workbench-bin
#1  0x0000000808dc9bc1 in std::char_traits<char>::length (__s=0x0) at char_traits.h:258
#2  0x0000000808dcbe15 in std::string::assign (this=0x7fffffffe4b0, __s=0x0) at basic_string.h:920
#3  0x0000000808dcbe45 in std::string::operator= (this=0x7fffffffe4b0, __s=0x0) at basic_string.h:499

Backtrace:
(gdb) bt full
#0  0x00000008092c05b7 in strlen () from /lib/libc.so.7
#1  0x0000000808dc9bc1 in std::char_traits<char>::length (__s=0x0) at char_traits.h:258
#2  0x0000000808dcbe15 in std::string::assign (this=0x7fffffffe4b0, __s=0x0) at basic_string.h:920
#3  0x0000000808dcbe45 in std::string::operator= (this=0x7fffffffe4b0, __s=0x0) at basic_string.h:499
#4  0x000000000070a87a in main (argc=1, argv=0x7fffffffe768) at main.cpp:113

It should not pass NULL into libc.

See more: http://forums.freebsd.org/showthread.php?t=19387

Fix: 

Check if __s is NULL?

#2  0x0000000808dcbe15 in std::string::assign (this=0x7fffffffe4b0, __s=0x0) at basic_string.h:920
      /**
       *  @brief  Set value to contents of a C string.
       *  @param s  The C string to use.
       *  @return  Reference to this string.
       *
       *  This function sets the value of this string to the value of @a s.
       *  The data is copied, so there is no dependence on @a s once the
       *  function returns.
       */
      basic_string&
      assign(const _CharT* __s)
      {
  __glibcxx_requires_string(__s);
  return this->assign(__s, traits_type::length(__s));
#1  0x0000000808dc9bc1 in std::char_traits<char>::length (__s=0x0) at char_traits.h:258
      static size_t
      length(const char_type* __s)
      { return strlen(__s); }
How-To-Repeat: > mysql-workbench-bin
Segmentation fault