Boost C++ Libraries: Ticket #12049: Assertion failure from detached threads during shutdown

owner, status changed

viboes — Sat, 19 Mar 2016 15:59:50 GMT

owner changed from Anthony Williams to viboes
status new → assigned

Hi, next follows the changes applied in 1.60 that could concern this issue https://github.com/boostorg/thread/commits/develop/src/pthread/thread.cpp

https://github.com/boostorg/thread/commit/c0fe04ecc99f3ab71eaed6bcb3c5ffa77fbaa7ef https://github.com/boostorg/thread/commit/40b3dc0c2c3d781ac07433064ffc466fa96bbe2b https://github.com/boostorg/thread/commit/242cf35c519fc886c13789f1f9a049571fde4cdc https://github.com/boostorg/thread/commit/4d45da6c06970b54387ee040e20a8a88c84c50c0

There are not too much changes. Could please, try to rollback those changes and see if you get yet the issue.

I will continue to analyze it.

viboes — Sat, 19 Mar 2016 16:10:07 GMT

I suspect the change

https://github.com/boostorg/thread/commit/242cf35c519fc886c13789f1f9a049571fde4cdc

could be the cause. Please, could you try to rollback this one first?

milestone changed

viboes — Wed, 23 Mar 2016 22:16:40 GMT

milestone To Be Determined → Boost 1.61.0

rollback done with https://github.com/boostorg/thread/commit/47357de276fe4fc01469f34c1dbf8b26fdbc1c4b

status changed; resolution set

viboes — Thu, 31 Mar 2016 22:16:51 GMT

status assigned → closed
resolution → fixed

blastrock — Mon, 18 Apr 2016 07:19:33 GMT

Hi,

I wanted to investigate a bit on this bug, do you have a minimal example? I tried to produce one with the description of the bug and wrote this:

#include <boost/thread.hpp>
#include <thread>
#include <unistd.h>
boost::thread_specific_ptr<int> p;
int main()
{
  std::thread th([]{ p.reset(new int); usleep(200000); });
  //th.join();
  th.detach();
  pthread_exit(0);
}

But this program works fine on my Linux, even if I comment the pthread_exit or if I invert the reset() and the usleep() calls.