id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3592	under_debugger() goes into infinite loop	a.sanders@…	Gennadiy Rozental	"In the under_debugger() function in debug.ipp there is the following loop:

-------------------------------------------
    pid_t pid = ::getpid();

    while( pid != 0 ) {
        process_info pi( pid );

        // !! ?? should we use tokenizer here instead?
        if( dbg_list.find( pi.binary_name() ) != const_string::npos )
            return true;

        pid = pi.parent_pid();
    }
---------------------------------------

The loop assumes it will eventually find a process who's parent
process id is zero. On our Solaris 10 systems (which is under Cluster control) it eventually ends up at the zsched process who's parent pid is the same as it's own pid. And so the loop never terminates.

$ ps -ef | grep zsched
    root  2487  2487   0   Oct 13 ?           0:00 zsched

Output from running the Test executable under truss shows how it keeps looping round on pid 2487.

If I run the Test executable from within gdb, then it runs okay and under_debugger() doesn't go into an infinite loop.

Output from truss is attached.
"	Bugs	closed	Boost 1.59.0	test	Boost 1.40.0	Problem	fixed