kou commented on issue #40518:
URL: https://github.com/apache/arrow/issues/40518#issuecomment-1997019743

   I thought that it's a library bug but we can't care about this case in 
library.
   
   This is happen in GC. We can't allocate any Ruby related memory in GC. This 
is happen because a `Gio::RubyInputStream` object created by 
`Gio::RubyInputStream.open(chunk)` is GC-ed. The object calls `close` method 
when it's GC-ed. We need to allocate Ruby related memory to call `close` 
method. We can't avoid calling `close` because we can't determine whether we 
can avoid `close` call safely or not. It depends on how to implement IO-like 
object that is passed to `Gio::RubyInputStream.new`.
   
   Users can avoid this by calling `close` explicitly. For example, users can 
use block:
   
   ```
   Gio::RubyInputStream.open(chunk) do
   end
   ```
   


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