debug: display stack size limit

Author: dunglas

.github/workflows/docker.yml

@@ -137,7 +137,7 @@ jobs:
         continue-on-error: ${{fromJson(needs.prepare.outputs.push)}}
         run: |
           ulimit -s
-          docker run --ulimit stack=$(ulimit -s)000 --platform=${{matrix.platform}} --rm \
+          docker run --platform=${{matrix.platform}} --rm \
             $(jq -r '."builder-${{matrix.variant}}"."containerimage.config.digest"' <<< $METADATA) \
             "sh -c 'ulimit -s && frankenphp version && go test ${{matrix.race}} -v ./... && cd caddy && go test ${{matrix.race}} -v ./...'"
         env:

frankenphp.c

@@ -21,6 +21,8 @@
 #include "frankenphp_arginfo.h"
 #include "_cgo_export.h"
 
+#include <sys/resource.h>
+
 #if defined(PHP_WIN32) && defined(ZTS)
 ZEND_TSRMLS_CACHE_DEFINE()
 #endif
@@ -616,6 +618,11 @@ int frankenphp_init(int num_threads) {
 	int *num_threads_ptr = calloc(1, sizeof(int));
 	*num_threads_ptr = num_threads;
 
+	struct rlimit r;
+	getrlimit(RLIMIT_STACK, &r);
+
+	fprintf(stderr, "stacklimit(soft: %ju, max: %ju)\n", (intmax_t) r.rlim_cur, (intmax_t) r.rlim_max);
+
     if (pthread_create(&thread, NULL, *manager_thread, (void *) num_threads_ptr) != 0) {
 		go_shutdown();