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-rw-r--r--thread_sync.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/thread_sync.c b/thread_sync.c
index 152995fac0..297b440a49 100644
--- a/thread_sync.c
+++ b/thread_sync.c
@@ -299,7 +299,11 @@ rb_mutex_lock(VALUE self)
if (mutex->th == th) mutex_locked(th, self);
if (interrupted) {
- RUBY_VM_CHECK_INTS_BLOCKING(th);
+ RUBY_VM_CHECK_INTS_BLOCKING(th); /* may release mutex */
+ if (!mutex->th) {
+ mutex->th = th;
+ mutex_locked(th, self);
+ }
}
}
}