id summary reporter owner description type status milestone component version severity resolution keywords cc 4251 Interprocess failed to communicate in OS X 10.5.8 Leopard under 64 bit mode Chih-Yao Hsieh Ion Gaztañaga "This issue only exists explicitly for OSX leopard 64 bits application trying to use IPC. Windows 32/64 bits, XP, Vista, Win 7 has no issue and OSX 10.4: 32 bits, 10.5: 32 bits, 10.6: 32/64 bits all works fine. The issue is due to ""inline void get_bootstamp(std::string &s, bool add = false)"" function. When a 64 bits host application create the shared_memory_object, there will be a folder somewhat like ""33FABFC2B8FACA0133FABFC2B8FACA01"" being created in the boost_interprocess directory. When the 64 bits client application trying to open the created shared_memory_object, the ""get_bootstamp(std::string &s, bool add = false)"" function will return ""33FABFC2B8FACA010000000000000000"", therefore, the client will always failed to find the shared memory object." Bugs closed Boost 1.43.0 interprocess Boost 1.44.0 Problem fixed