Re: [Boost-bugs] [Boost C++ Libraries] #4978: Deadlock on interrupt() all threads if they are in wait()

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4978: Deadlock on interrupt() all threads if they are in wait()
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-03-02 20:03:08

#4978: Deadlock on interrupt() all threads if they are in wait()
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  Reporter:  d.schneider@…           |       Owner:  anthonyw   
      Type:  Bugs                    |      Status:  new        
 Milestone:  To Be Determined        |   Component:  thread     
   Version:  Boost 1.46.0            |    Severity:  Showstopper
Resolution:                          |    Keywords:             
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Comment (by moraleda@…):

 Replying to [comment:1 moraleda@…]:
 > To work around it, I have reordered the locks inside
 thread::interrupt(), so they are acquired in the same order as in
 condition_variable::wait()
 My proposed work around does not actually work. The reason is that
 cond_mutex is mutable and could be changed by another thread if data_mutex
 is not locked. Thus changing the order of the lock could (and does) result
 in a segmentation fault. I don't see a trivial fix, so I am reverting to
 an earlier version of boost thread until this problem is fixed.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4978#comment:3>
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