* thread.c (rb_thread_atfork_internal): reinitialize global lock

  at fork to get rid of deadlock.  based on the patch from Hongli
  Lai in [ruby-core:26783].  [ruby-core:26361]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25842 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/thread.c b/thread.c
index 5caf1da4ff..9c6ec5b73d 100644
--- a/thread.c
+++ b/thread.c
@@ -2710,6 +2710,7 @@ rb_thread_atfork_internal(int (*atfork)(st_data_t, st_data_t, st_data_t))
     VALUE thval = th->self;
     vm->main_thread = th;
 
+    native_mutex_reinitialize_atfork(&th->vm->global_vm_lock);
     st_foreach(vm->living_threads, atfork, (st_data_t)th);
     st_clear(vm->living_threads);
     st_insert(vm->living_threads, thval, (st_data_t)th->thread_id);