tree aed636c361bf82fb68f7f4376b4b572eb0032bf7
parent de1a04029d5bf0ca5d2c82b95569cdbce3a92421
author Maxim Dounin <mdounin@mdounin.ru> 1508259136 +0300
committer Maxim Dounin <mdounin@mdounin.ru> 1508259136 +0300

Core: free shared memory zones only after reconfiguration.

This is what usually happens for zones no longer used in the new
configuration, but zones where size or tag were changed were freed
when creating new memory zones.  If reconfiguration failed (for
example, due to a conflicting listening socket), this resulted in a
segmentation fault in the master process.

Reported by Zhihua Cao,
http://mailman.nginx.org/pipermail/nginx-devel/2017-October/010536.html.