Would it be advisable to limit the number of worker_processes to
NGX_MAX_PROCESSES at least when we have `worker_processes auto;` in the
config?

A corresponding patch could be:

diff a/src/core/nginx.c b/src/core/nginx.c
--- a/src/core/nginx.c
+++ b/src/core/nginx.c
@@ -1478,7 +1478,7 @@ ngx_set_worker_processes(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf)
     value = cf->args->elts;

     if (ngx_strcmp(value[1].data, "auto") == 0) {
-        ccf->worker_processes = ngx_ncpu;
+        ccf->worker_processes = ngx_min(ngx_ncpu, NGX_MAX_PROCESSES);
         return NGX_CONF_OK;
     }



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