[Boost-bugs] [Boost C++ Libraries] #4739: A thread safe bug about epoll_reactor

Subject: [Boost-bugs] [Boost C++ Libraries] #4739: A thread safe bug about epoll_reactor
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-15 02:18:16

#4739: A thread safe bug about epoll_reactor
--------------------------------+-------------------------------------------
 Reporter:  anonymous           |       Owner:  chris_kohlhoff
     Type:  Bugs                |      Status:  new           
Milestone:  To Be Determined    |   Component:  asio          
  Version:  Boost 1.45.0        |    Severity:  Problem       
 Keywords:  asio epoll_reactor  |  
--------------------------------+-------------------------------------------
 There is a bug epoll_reacor the version Release 1.45.0
 In the file epoll_reactor.hpp, function epoll_reacor::run, line 369.
      void* ptr = events[i].data.ptr;
      ...
      descriptor_state* descriptor_data =
 static_cast<descriptor_state*>(ptr);
      mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);

 And the file epoll_reactor.hpp, function epoll_reacor::close_descriptor,
 line 256.
      registered_descriptors_.erase(descriptor);

      The ptr ( void* ptr = events[i].data.ptr) may been free in the
 epoll_reacor::close_descriptor.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4739>
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