[Boost-bugs] [Boost C++ Libraries] #4736: MinGW: tss crashes (SIGSEGV) in ~thread_specific_ptr

Subject: [Boost-bugs] [Boost C++ Libraries] #4736: MinGW: tss crashes (SIGSEGV) in ~thread_specific_ptr
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-14 14:46:02

#4736: MinGW: tss crashes (SIGSEGV) in ~thread_specific_ptr
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 Reporter:  Jim Bell <jim@…>                                               |       Owner:  anthonyw
     Type:  Bugs                                                           |      Status:  new     
Milestone:  To Be Determined                                               |   Component:  thread  
  Version:  Boost 1.44.0                                                   |    Severity:  Problem 
 Keywords:  mingw tss SIGSEGV thread_specific_ptr destructor set_tss_data  |  
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 tss crashes with a SIGSEGV in the destructor of thread_specific_ptr under
 mingw, inside boost::detail::set_tss_data().

 After main() exits, apparently cleanup_tls_key() gets called some time
 prior to the thread_specific_ptr clean-up.

 Then inside set_tss_data(), get_or_make_current_thread_data() returns 0,
 and dereferencing it (current_thread_data->tss_data, line 589) causes the
 crash.

 get_or_make_... actually makes one, but get_current_thread_data() won't
 return it because current_thread_tls_key is reset. So there's a little
 resource leak here, too. Though I don't think that's important this late
 in the program's termination sequence, you could check
 current_thread_tls_key explicitly in get_or_make_... and avoid it.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4736>
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