rb_objspace_reachable_objects_from requires that the GC not be active. Since the Ractor barrier is not executed for incremental sweeping, Ractor may call rb_objspace_reachable_objects_from after sweeping has started to share objects. This causes a crash that looks like the following:
<internal:ractor>:627: [BUG] rb_objspace_reachable_objects_from() is not supported while during_gc == true
Added by peterzhu2118 (Peter Zhu) about 4 years ago
[Bug #18117] Fix Ractor race condition with GC
rb_objspace_reachable_objects_from requires that the GC not be active.
Since the Ractor barrier is not executed for incremental sweeping,
Ractor may call rb_objspace_reachable_objects_from after sweeping
has started to share objects. This causes a crash that looks like
the following:
Co-authored-by: Vinicius Stock vinicius.stock@shopify.com