You can enable the debugging of the waiting time for a lock of RsMutex in rsthreads.h with
#define RSMUTEX_DEBUG 300
That means all locks waiting longer than 300ms are logged into the stderr.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@4392 b45a01b8-16f6-495d-af2f-9b41ad6348cc