Hello, Kostik. You wrote 17 ноября 2011 г., 11:49:09: > High-tech solution is to link with libunwind and add code into sigprocmask() > to gather the stacks. But I expect that gdb attach is enough. Proper high-tech solution is to use DTrace. It is very food in such things. -- // Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>