I triggered the following message printed so stderr for my program (C++, boost::asio, threads, SMP/2cpu)
thr_umtx_wait: FAULT VALUE CHANGE 0 -> 1 oncond 0x282f0314 thr_umtx_wait: FAULT VALUE CHANGE 0 -> 1 oncond 0x282f0344 thr_umtx_wait: FAULT VALUE CHANGE 0 -> 1 oncond 0x282f032c What is it? I found lines in source doing fprintf (libthread_xu/thread/thr_umtx.c, line 140), but I not quite understand what happens. Is it harmful and worth debugging, or I should just ignore this? 2.6-RELEASE DragonFly v2.6.3.43.gb67e7
