Let vm_dump show whether the fiber scheduler is enabled or not

... just for the case.

1 files changed, 4 insertions, 0 deletions

diff --git a/vm_dump.c b/vm_dump.c
index 3a5b96edcd..91f99d233b 100644
--- a/vm_dump.c
+++ b/vm_dump.c
@@ -9,6 +9,7 @@
 **********************************************************************/
 
 #include "ruby/internal/config.h"
+#include "ruby/fiber/scheduler.h"
 
 #ifdef HAVE_UCONTEXT_H
 # include <ucontext.h>
@@ -1140,6 +1141,9 @@ rb_vm_bugreport(const void *ctx, FILE *errout)
                 "---------------------------------------------------\n");
         kprintf("Total ractor count: %u\n", vm->ractor.cnt);
         kprintf("Ruby thread count for this ractor: %u\n", rb_ec_ractor_ptr(ec)->threads.cnt);
+        if (rb_fiber_scheduler_current() != Qnil) {
+            kprintf("Note that the Fiber scheduler is enabled\n");
+        }
         kputs("\n");
     }