Fixed segfault with poll and resolver used.
Poll event method needs ngx_cycle->files to work, and use of ngx_exit_cycle
without files set caused null pointer dereference in resolver's cleanup
on udp socket close.
diff --git a/src/os/unix/ngx_process_cycle.c b/src/os/unix/ngx_process_cycle.c
index 82cf8e6..0474a26 100644
--- a/src/os/unix/ngx_process_cycle.c
+++ b/src/os/unix/ngx_process_cycle.c
@@ -711,6 +711,8 @@
ngx_exit_log.file = &ngx_exit_log_file;
ngx_exit_cycle.log = &ngx_exit_log;
+ ngx_exit_cycle.files = ngx_cycle->files;
+ ngx_exit_cycle.files_n = ngx_cycle->files_n;
ngx_cycle = &ngx_exit_cycle;
ngx_destroy_pool(cycle->pool);
@@ -1054,6 +1056,8 @@
ngx_exit_log.file = &ngx_exit_log_file;
ngx_exit_cycle.log = &ngx_exit_log;
+ ngx_exit_cycle.files = ngx_cycle->files;
+ ngx_exit_cycle.files_n = ngx_cycle->files_n;
ngx_cycle = &ngx_exit_cycle;
ngx_destroy_pool(cycle->pool);
