Re: [Boost-bugs] [Boost C++ Libraries] #3950: boost::interprocess::mapped_region destructor deletes shm where it shouldn't.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #3950: boost::interprocess::mapped_region destructor deletes shm where it shouldn't.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-05-21 20:07:33

#3950: boost::interprocess::mapped_region destructor deletes shm where it
shouldn't.
-------------------------------------------+--------------------------------
 Reporter:  Lénaïc Huard <lhuard@…>        |       Owner:  igaztanaga  
     Type:  Bugs                           |      Status:  new         
Milestone:  Boost 1.43.0                   |   Component:  interprocess
  Version:  Boost 1.42.0                   |    Severity:  Problem     
 Keywords:                                 |  
-------------------------------------------+--------------------------------

Comment(by Lénaïc Huard <lhuard@…>):

 I found the problem.

 The problem was indeed caused by the strict aliasing rule violation by the
 class rv (in detail/move.hpp)

 The case described here above and in #3951 can be solved by flagging the
 class rv with the gcc specific {{{__attribute__((__may_alias__))}}}.

 The full patch that fixes the issue is attached in
 [https://svn.boost.org/trac/boost/raw-

 attachment/ticket/3950/boost_interprocess.patch boost_interprocess.patch].

 Could you please have a look at it?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3950#comment:2>
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