fix segfault in resolver:

ngx_resolve_name_done() and ngx_resolve_addr_done() did not delete
contexts from a resolver node waiting list.

diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c
index 9adc2d223549cae93e64e2fcc474ffa57b09a96e..82785c276043344ceb76d1a59acfaf7c6a3e99e1 100644 (file)
--- a/src/core/ngx_resolver.c
+++ b/src/core/ngx_resolver.c
@@ -464,6 +464,7 @@ ngx_resolve_name_locked(ngx_resolver_t *r, ngx_resolver_ctx_t *ctx)
 
             ctx->next = rn->waiting;
             rn->waiting = ctx;
+            ctx->state = NGX_AGAIN;
 
             return NGX_AGAIN;
         }
@@ -625,6 +626,7 @@ ngx_resolve_addr(ngx_resolver_ctx_t *ctx)
 
             ctx->next = rn->waiting;
             rn->waiting = ctx;
+            ctx->state = NGX_AGAIN;
 
             /* unlock addr mutex */