id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8788	SIGSEGV on thread::join	anonymous	Anthony Williams	"Fedora 19, x86_64.

The following program:
{{{
#include <boost/thread/thread.hpp>

void myFunc()
{
}

int main(int, char **)
{
  boost::thread p(myFunc);

  p.join();
}
}}}

When compiled with:
{{{g++ -o bthread bthread.cxx -lboost_thread -D_GLIBCXX_DEBUG}}}

Results in the following segfault (with -ggdb added):

{{{
boost::detail::thread_data_base::~thread_data_base (this=0x6100d0, __in_chrg=<optimized out>) at libs/thread/src/pthread/thread.cpp:42
42	                i->second->unlock();
(gdb) bt full
#0  boost::detail::thread_data_base::~thread_data_base (this=0x6100d0, __in_chrg=<optimized out>) at libs/thread/src/pthread/thread.cpp:42
        i = <error reading variable i (Cannot access memory at address 0x1)>
        e = <error reading variable e (Cannot access memory at address 0x0)>
#1  0x00000000004095bb in boost::detail::thread_data<void (*)()>::~thread_data (this=0x6100d0, __in_chrg=<optimized out>)
    at /usr/include/boost/thread/detail/thread.hpp:91
No locals.
#2  0x00000000004095ea in boost::detail::thread_data<void (*)()>::~thread_data (this=0x6100d0, __in_chrg=<optimized out>)
    at /usr/include/boost/thread/detail/thread.hpp:91
No locals.
#3  0x0000000000409622 in boost::checked_delete<boost::detail::thread_data<void (*)()> > (x=0x6100d0) at /usr/include/boost/checked_delete.hpp:34
No locals.
#4  0x0000000000409912 in boost::detail::sp_counted_impl_p<boost::detail::thread_data<void (*)()> >::dispose (this=0x6102f0)
    at /usr/include/boost/smart_ptr/detail/sp_counted_impl.hpp:78
No locals.
#5  0x00000000004052ce in boost::detail::sp_counted_base::release (this=0x6102f0)
    at /usr/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:146
No locals.
#6  0x000000360500c93d in ~shared_count (this=0x7fffffffe0e8, __in_chrg=<optimized out>) at boost/smart_ptr/detail/shared_count.hpp:371
No locals.
#7  ~shared_ptr (this=0x7fffffffe0e0, __in_chrg=<optimized out>) at boost/smart_ptr/shared_ptr.hpp:328
No locals.
#8  boost::thread::join_noexcept (this=0x7fffffffe1c0) at libs/thread/src/pthread/thread.cpp:340
        local_thread_info = {px = 0x6100d0, pn = {pi_ = 0x6102f0}}
---Type <return> to continue, or q <return> to quit---
#9  0x0000000000405bf5 in boost::thread::join (this=0x7fffffffe1c0) at /usr/include/boost/thread/detail/thread.hpp:751
No locals.
#10 0x00000000004045eb in main () at bthread.cxx:11
        p = {thread_info = {px = 0x0, pn = {pi_ = 0x0}}}
}}}

See also ticket #7666."	Bugs	closed	To Be Determined	thread	Boost 1.53.0	Problem	duplicate	SIGSEGV, thread