improve ngx_slab_alloc() error logging

1 files changed, 11 insertions, 0 deletions

diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index 5fa400de4..eb8888802 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -1412,6 +1412,7 @@ ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
 static ngx_int_t
 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
 {
+    size_t                    len;
     ngx_slab_pool_t          *shpool;
     ngx_ssl_session_cache_t  *cache;
 
@@ -1432,6 +1433,16 @@ ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
 
     ngx_queue_init(&cache->expire_queue);
 
+    len = sizeof(" in SSL session shared cache \"\"") + shm_zone->name.len;
+
+    shpool->log_ctx = ngx_slab_alloc(shpool, len);
+    if (shpool->log_ctx == NULL) {
+        return NGX_ERROR;
+    }
+
+    ngx_sprintf(shpool->log_ctx, " in SSL session shared cache \"%V\"%Z",
+                &shm_zone->name);
+
     shm_zone->data = cache;
 
     return NGX_OK;