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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-10-10 18:36:54 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-10-10 18:36:54 +0000
commit53861b8acd18cc5241d044f6246568cbac6a31cf (patch)
tree19a9e2139e2e72178b42f7b2887be8d216210ebc /test
parentabd6dc8c10dc8dc8f19898cef507be2e13ed1d0e (diff)
vm_trace.c: fix infinite hook
* thread.c (rb_threadptr_execute_interrupts): flush postponed job only once at last. * vm_trace.c (rb_postponed_job_flush): defer calling postponed jobs registered while flushing to get rid of infinite reentrance of ObjectSpace.after_gc_start_hook. [ruby-dev:47400] [Bug #8492] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43245 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
-rw-r--r--test/objspace/test_objspace.rb19
1 files changed, 19 insertions, 0 deletions
diff --git a/test/objspace/test_objspace.rb b/test/objspace/test_objspace.rb
index 133b1e9..861e40e 100644
--- a/test/objspace/test_objspace.rb
+++ b/test/objspace/test_objspace.rb
@@ -172,4 +172,23 @@ class TestObjSpace < Test::Unit::TestCase
assert_equal(nil, ObjectSpace.allocation_sourcefile(obj2))
assert_equal(nil, ObjectSpace.allocation_sourcefile(obj3))
end
+
+ def test_after_gc_start_hook_with_GC_stress
+ bug8492 = '[ruby-dev:47400] [Bug #8492]: infinite after_gc_start_hook reentrance'
+ assert_nothing_raised(Timeout::Error, bug8492) do
+ assert_in_out_err(%w[-robjspace], <<-'end;', /\A[1-9]/, timeout: 2)
+ stress, GC.stress = GC.stress, false
+ count = 0
+ ObjectSpace.after_gc_start_hook = proc {count += 1}
+ begin
+ GC.stress = true
+ 3.times {Object.new}
+ ensure
+ GC.stress = stress
+ ObjectSpace.after_gc_start_hook = nil
+ end
+ puts count
+ end;
+ end
+ end
end