ngx_slab_junk      99 core/ngx_slab.c     ngx_slab_junk(p, size);
ngx_slab_junk     587 core/ngx_slab.c         ngx_slab_junk(p, size << ngx_pagesize_shift);
ngx_slab_junk     598 core/ngx_slab.c     ngx_slab_junk(p, size);