From: Yusuke Endoh <redmine@...>
Date: 2010-05-13T21:47:02+09:00
Subject: [ruby-core:30209] [Bug #3286] segfault in method_missing -> method -> method_missing recursive loop

Issue #3286 has been updated by Yusuke Endoh.

Target version set to 1.9.2

Hi,

This duplicates #1813.  This issue also occurs on trunk.

Essentially, infinite recursion may cause segv.  The segv is rescued
by using sigaltstack on Linux, but it will not on platform where
sigaltstack is not available (such as windows).
So if you want to write a portable ruby script, you should not depend
on SystemStackError.

Even in Linux, sigaltstack is set only for main thread.  The segv
that occurs on sub threads leads to core dump.  I don't know the
reason why sigaltstack is not used on sub threads, but I guess it is
merely forgotten.

-- 
Yusuke Endoh <mame@tsg.ne.jp>
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