###@###.### wrote (while discussing bug-ID 6695810):

 Based on values on stack C2 requested not 16 bytes
 but 8Gb + 16 bytes:

 0xfffffd7fec264440: 0x0000000200000010 0xfffffd7fff01c8e2
 0xfffffd7fec264450: 0x00000000000000d7 0xfffffd7ffe5afdc0

 0x00d7 is line number 215:

 # java.lang.OutOfMemoryError: requested 16 bytes for Chunk::new. Out of swap space?
 #
 # Internal Error (allocation.cpp:215), pid=4425, tid=12

 There is bug in error report code which use %d to print long value:

 void VMError::report(outputStream) {
 ...
          st->print("# java.lang.OutOfMemoryError: ");
          if (_size) {
            st->print("requested ");
            sprintf(buf,"%d",_size);


vmError.hpp line 61 defines _size:

  size_t _size;

which on 64-bit platforms will be defined as something like ulong_t