disable rewind hooks.

* vm.c (hook_before_rewind): skip rewind hooks if err is SystemStackError
  because rewind hooks can cause stack overflow again and again.

* thread.c (ruby_thread_stack_overflow): do not disable all hooks.
  Additionally, clearing ruby_vm_event_flags is not suitable way
  to disable hooks.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58349 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 1 deletions

diff --git a/thread.c b/thread.c
index 54b4fd599c..a93c6100bf 100644
--- a/thread.c
+++ b/thread.c
@@ -2169,7 +2169,6 @@ NORETURN(void ruby_thread_stack_overflow(rb_thread_t *th));
 void
 ruby_thread_stack_overflow(rb_thread_t *th)
 {
-    ruby_vm_event_flags = 0;
     th->raised_flag = 0;
 #ifdef USE_SIGALTSTACK
     if (!rb_threadptr_during_gc(th)) {