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merges r30743 from trunk into ruby_1_9_2.

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	* thread.c (thread_start_func_2): check deadlock condition before
	  release thread stack. fix memory violation when deadlock detected.
	  reported by Max Aller. [Bug #4009] [ruby-core:32982]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@31202 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
yugui 2011-03-28 13:40:56 +00:00
parent 4ed5cda951
commit 67db9280bf
3 changed files with 10 additions and 3 deletions
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5
thread.c
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@ -512,13 +512,14 @@ thread_start_func_2(rb_thread_t *th, VALUE *stack_start, VALUE *register_stack_s
join_th = join_th->join_list_next;
}
thread_unlock_all_locking_mutexes(th);
if (th != main_th) rb_check_deadlock(th->vm);
if (!th->root_fiber) {
rb_thread_recycle_stack_release(th->stack);
th->stack = 0;
}
}
thread_unlock_all_locking_mutexes(th);
if (th != main_th) rb_check_deadlock(th->vm);
if (th->vm->main_thread == th) {
ruby_cleanup(state);
}