Don't change vm_stack/cfp without acquiring gvl first.
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ab6d8d0b65
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2abe548f35
5
thread.c
5
thread.c
@ -714,6 +714,10 @@ thread_start_func_2(rb_thread_t *th, VALUE *stack_start)
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}
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vm_stack = alloca(size * sizeof(VALUE));
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VM_ASSERT(vm_stack);
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gvl_acquire(th->vm, th);
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rb_ec_initialize_vm_stack(th->ec, vm_stack, size);
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ruby_thread_set_native(th);
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@ -723,7 +727,6 @@ thread_start_func_2(rb_thread_t *th, VALUE *stack_start)
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thread_debug("thread start: %p\n", (void *)th);
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gvl_acquire(th->vm, th);
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{
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thread_debug("thread start (get lock): %p\n", (void *)th);
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rb_thread_set_current(th);
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