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authorPeter Zhu <peter@peterzhu.ca>2023-01-03 10:59:47 -0500
committerPeter Zhu <peter@peterzhu.ca>2023-01-04 09:10:58 -0500
commitb8a3f1bd456f92866c4a7bd83235f78c574784a8 (patch)
tree843a013bce52ba539df4056462e7be51e01b65a0 /gc.h
parent3bcf92d8afb62a10dd4c700a4925d2ccac43f5a2 (diff)
Fix crash in tracing object allocations
ObjectSpace.trace_object_allocations_start could crash since it adds a TracePoint for when objects are freed. However, TracePoint could crash since it modifies st tables while inside the GC that is trying to free the object. This could cause a memory allocation to happen which would crash if it triggers another GC. See a crash log: http://ci.rvm.jp/results/trunk@ruby-sp1/4373707
Notes
Notes: Merged: https://github.com/ruby/ruby/pull/7058
Diffstat (limited to 'gc.h')
-rw-r--r--gc.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/gc.h b/gc.h
index b2356444c6..23218c1a9e 100644
--- a/gc.h
+++ b/gc.h
@@ -116,8 +116,6 @@ int ruby_get_stack_grow_direction(volatile VALUE *addr);
const char *rb_obj_info(VALUE obj);
const char *rb_raw_obj_info(char *const buff, const size_t buff_size, VALUE obj);
-VALUE rb_gc_disable_no_rest(void);
-
struct rb_thread_struct;
size_t rb_size_pool_slot_size(unsigned char pool_id);
@@ -142,6 +140,8 @@ void rb_objspace_each_objects_without_setup(
size_t rb_gc_obj_slot_size(VALUE obj);
+VALUE rb_gc_disable_no_rest(void);
+
RUBY_SYMBOL_EXPORT_END
#endif /* RUBY_GC_H */