diff options
author | Peter Zhu <peter@peterzhu.ca> | 2023-01-03 10:59:47 -0500 |
---|---|---|
committer | Peter Zhu <peter@peterzhu.ca> | 2023-01-04 09:10:58 -0500 |
commit | b8a3f1bd456f92866c4a7bd83235f78c574784a8 (patch) | |
tree | 843a013bce52ba539df4056462e7be51e01b65a0 /gc.h | |
parent | 3bcf92d8afb62a10dd4c700a4925d2ccac43f5a2 (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.h | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -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 */ |