VM barrier needs to store GC root
On the VM barrier waiting, it needs to store machine context as a GC root.
Also it needs to wait for barrier synchronization correctly by while (for continuous barrier sync by another ractor).
while
This is why GC marking misses are occerred on ARM machines. like: https://rubyci.s3.amazonaws.com/fedora40-arm/ruby-master/log/20240702T063002Z.fail.html.gz
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VM barrier needs to store GC root
On the VM barrier waiting, it needs to store machine context
as a GC root.
Also it needs to wait for barrier synchronization correctly
by
while(for continuous barrier sync by another ractor).This is why GC marking misses are occerred on ARM machines.
like: https://rubyci.s3.amazonaws.com/fedora40-arm/ruby-master/log/20240702T063002Z.fail.html.gz