[Boost-bugs] [Boost C++ Libraries] #11537: named_recursive_mutex deadlock problem

Subject: [Boost-bugs] [Boost C++ Libraries] #11537: named_recursive_mutex deadlock problem
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-08-13 07:27:49

#11537: named_recursive_mutex deadlock problem
------------------------------+--------------------------
 Reporter:  zzweng_2001@…     |      Owner:  igaztanaga
     Type:  Support Requests  |     Status:  new
Milestone:  To Be Determined  |  Component:  interprocess
  Version:  Boost 1.49.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+--------------------------
 In my fastcgi application code, I tried to use managed_mapped_file to
 communicate between process, and use named_recursive_mutex to do
 synchronization. With fastcgi, I started 3 child process, after a few
 minutes, I found all these 3 process waiting for lock:
 Thread 1 (Thread 0x7f0e2b536820 (LWP 16593)):
 #0  0x0000003d9ee0e054 in __lll_lock_wait () from /lib64/libpthread.so.0
 #1  0x0000003d9ee093a3 in _L_lock_892 () from /lib64/libpthread.so.0
 #2  0x0000003d9ee09287 in pthread_mutex_lock () from
 /lib64/libpthread.so.0
 #3  0x000000000054a9cf in
 boost::interprocess::ipcdetail::posix_recursive_mutex::lock() ()
 #4  0x000000000054aabc in
 boost::interprocess::interprocess_recursive_mutex::lock() ()
 #5  0x000000000054b304 in
 boost::interprocess::ipcdetail::shm_named_recursive_mutex::lock() ()
 #6  0x000000000054b390 in
 boost::interprocess::named_recursive_mutex::lock() ()
 #7  0x000000000054bade in
 boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>::scoped_lock(boost::interprocess::named_recursive_mutex&)
 ()
 #8  0x00000000005647ef in IPRateLimit::CIPLimit::incCount(unsigned int,
 IPRateLimit::iprate&) ()
 #9  0x00000000004d8017 in (anonymous namespace)::TboProc::operator()() ()
 #10 0x00000000004e40f9 in Goome::FCGI_Accepter<(anonymous
 namespace)::TboProc>::dispatch() ()
 #11 0x00000000004e2f80 in fork_main(int) ()
 #12 0x00000000004e346f in main ()

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/11537>
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