Issue #9205 has been updated by Usaku NAKAMURA. Related to Backport #9463: SEGV when calling GC.start in a finalizer added ---------------------------------------- Bug #9205: Assertion failed: heap_pages_deferred_final == 0 https://bugs.ruby-lang.org/issues/9205#change-44826 * Author: Heesob Park * Status: Closed * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: ruby 2.1.0dev (2013-12-02 trunk 43958) [x64-mswin64_120] * Backport: 1.9.3: UNKNOWN, 2.0.0: DONE ---------------------------------------- If I run the following code: raise_proc = proc do |id| p "Finalizer one on #{id}" end 10000.times do ObjectSpace.define_finalizer(Object.new, raise_proc) end I can see an assertion failure. "Finalizer one on 24535120" Assertion failed: heap_pages_deferred_final == 0, file gc.c, line 2111 Same error with ruby 2.0.0p353 (2013-11-22) [i386-mingw32] ---Files-------------------------------- fix_assertion_fail.patch (981 Bytes) -- http://bugs.ruby-lang.org/