Hi, I have a C++ application using the new std::thread functionality. At random I see all kinds of crashes, mostly in std::string but also in std::map and friends. I have profiling (-pg) enabled. It seems that if I disable profiling, also the random errors (SIGSEGV) disappear. Are there any known issues with profiling, c++0x and gcc version 4.7 with this? (tried g++ 4.6 as well) Thanks. Folkert.