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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 --- ext/objspace/depend | 1 + ext/objspace/object_tracing.c | 7 +++++++ gc.h | 4 ++-- 3 files changed, 10 insertions(+), 2 deletions(-)