id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
9569	[windows] Upgrade lock is not acquired when previous upgrade lock releases if another read lock is present	Rodionov Andrew <camelot58@…>	viboes	"The problem is described here https://svn.boost.org/trac/boost/ticket/5516. Example and result are the same. The only difference is that I use <boost/thread/win32/shared_mutex.hpp> instead of <boost/thread/pthread/shared_mutex.hpp>.

I tried to compile with BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN flag and everything goes right. So the problem is in function unlock_upgrade() in <boost/thread/win32/shared_mutex.hpp>.

My platform: Windows 7 x64, MS VS 2012."	Bugs	closed	Boost 1.57.0	thread	Boost 1.55.0	Problem	fixed	shared_mutex windows