[Boost-bugs] [Boost C++ Libraries] #10651: boost::thread leaks memory when using the MinGW compiler

Subject: [Boost-bugs] [Boost C++ Libraries] #10651: boost::thread leaks memory when using the MinGW compiler
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-10-12 09:26:55

#10651: boost::thread leaks memory when using the MinGW compiler
------------------------------+----------------------
 Reporter:  michael.burr@…    |      Owner:  anthonyw
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  thread
  Version:  Boost 1.56.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+----------------------
 boost::thread leaks memory when using the MinGW compiler

 This report is based on information originally from:

     [hxxp://stackoverflow.com/questions/26284056/threads-hogging-up-
 memory]

 When the following program is compiled with MinGW, the memory use of the
 process continually increases:

 {{{
 #include <boost/thread.hpp>

 void thread_func()
 {
     return;
 }

 int main()
 {
     for (;;) {
         boost::thread t1(thread_func);
         boost::thread t2(thread_func);

         t1.join();
         t2.join();
     }
 }

 }}}

 Any one of the following changes to the program seem to make the memory
 leak go away:

   - add a call to the Windows API `Sleep(1)` to `thread_func()`
   - use only a single thread
   - move the call to `t1.join()` to before the creation of `t2`

 I'm not sure if this problem is sensitive to the version of MinGW.  I used
 MinGW 4.8.1 from tdm-gcc:

     [hxxp://tdm-gcc.tdragon.net/]

 I built a 32-bit program; I'm not sure if a 64-bit program would behave
 differently.

 The problem doesn't occur when MSVC 12 (Visual Studio 2013) is used.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10651>
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