c++ - BIND DNS servers crash when setting root-delegation-only without exclude option -

i think it's bug in bind. happens on both bind dns 9.9.x , 9.10.x.

if set root-delegation-only without exclude opntion named.conf, named cannot start.

named.conf example:

controls {   inet 127.0.0.1 allow { localhost; } keys { "rndc-key"; }; };  key "rndc-key" {   algorithm "hmac-md5";   secret "mtizndu2";  }; options {   directory "c:\named";   root-delegation-only;   #root-delegation-only exclude { "com"; "net"; };  }; 

run named

named.exe -c c:\named\named.conf -g

named crashes errors:

23-jul-2015 18:47:22.280 set managed keys zone view _default, file 'managed-keys.bind' 23-jul-2015 18:47:22.280 ..\parser.c:1167: require(obj == ((void *)0) || obj->type->rep == &cfg_rep_list) failed 23-jul-2015 18:47:22.280 exiting (due assertion failure) 

it works if add exclude option:

root-delegation-only exclude { "com"; "net"; };

it is bug in bind. it's known bug, , fix has been coded , included in next regularly-scheduled releases of bind (i.e. bind 9.9.8 , bind 9.10.3.)

4112.   [bug]       named failed load when "root-delegation-only"                     used without list of domains exclude.                     [rt #39380] 

development (beta) releases include change should available in late august or in september (2015), since know bug number (39380) , change number (4112) can retrieve diff isc's source repository if wish. here's a link gitweb interface, or can use command-line git tools if prefer.