[Boost-bugs] [Boost C++ Libraries] #11951: Memory leak in boost::when_all

Subject: [Boost-bugs] [Boost C++ Libraries] #11951: Memory leak in boost::when_all
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-02-03 10:53:08

#11951: Memory leak in boost::when_all
 Reporter: snizovtsev@… | Owner: anthonyw
     Type: Bugs | Status: new
Milestone: To Be Determined | Component: thread
  Version: Boost 1.60.0 | Severity: Regression
 Keywords: future continuation leak |
 After trying to identify the source of huge memory leak in our product we
 found that problem sits inside boost::when_all.

 I have written a minimal program to demonstrate it. It simply constructs
 many promises, extracts the future from them and assign continuation to
 boost::when_all future. Then it waits for completition and loop.

 Run `htop` and see how memory infinitly consumes in time at ~300-400
 kb/sec. I have run this test on OS X (El Capitan) and Ubuntu 15.10. On
 Linux also virtual memory (address space) consumed at ~1 GB/sec rate!

 ifdef-ed part of code are used to run on valgrind and test that future's
 target objects are NOT leaked.

Ticket URL: <https://svn.boost.org/trac/boost/ticket/11951>
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