title: Mutli-threaded application hanging on _dl_sysinfo_int80
body: <p>I have a multi-threaded application that is hanging on a call to _dl_sysinfo_int80().  According to gdb, all threads are stuck in this call.</p>
  
  <p>The top of the stack trace looks like:</p>
  
  <pre><code>#0  0x002727a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  #1  0x004f23de in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
  #2  0x004ef00b in _L_mutex_lock_35 () from /lib/tls/libpthread.so.0
  #3  0x092828ac in construction vtable for std::ostream-in-std::basic_stringstream&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; ()
  </code></pre>
  
  <p>Any idea what could be causing this?</p>