id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13528	Boost Test 1.67 crashes when the --report_sink command-line parameter is used	igor.akhmetov@…	Raffi Enficiaud	"Environment: Visual Studio 15.6, 64-bit build of Boost.

Scenario: a Boost.Test executable crashes with an access violation when run with the -e command-line argument.

Cause: Boost.Test has two global singletons, a framework::state instance inside s_frk_state() and a results_reporter_impl instance inside s_rr_impl(). Their relative destruction order is undefined, in my case the results_reporter_impl instance is destroyed before the framework::state instance. The following sequence of events then takes place:

1) framework::state::~state destroys the m_report_sink member, leading to the stream_holder::~stream_holder call.

2) stream_holder::~stream_holder destroys m_cleaner, which calls stream_holder::callback_cleaner::~callback_cleaner.

3) stream_holder::callback_cleaner::~callback_cleaner calls the m_cleaner_callback callback, which was passed from framework::init.

4) The callback calls results_reporter::set_stream.

5) results_reporter::set_stream accesses the results_reporter_impl singleton instance, which has been already destroyed, and the program crashes."	Bugs	closed	Boost 1.68.0	test	Boost 1.67.0	Showstopper	fixed