From: Eric Wong <normalperson@yhbt.net>
To: unicorn list <mongrel-unicorn@rubyforge.org>
Cc: Bharanee Rathna <deepfryed@gmail.com>
Subject: Re: unicorn segfaulting on Array.shuffle under ruby 1.9.1
Date: Sun, 14 Mar 2010 23:53:57 +0000 [thread overview]
Message-ID: <20100314235357.GC27911@dcvr.yhbt.net> (raw)
In-Reply-To: <70b2ff111003141500r55eebf03kb0d993d9e34c5d96@mail.gmail.com>
Bharanee Rathna <deepfryed@gmail.com> wrote:
> Hi Guys,
>
> http://gist.github.com/332266
>
> results in a segfault when run under unicorn. It seems to be fine
> with webrick or thin. Any ideas ?
Hi Bharanee, it looks like the random number generator needs to be
reinitialized after fork()...
Try putting "rand" anywhere before shuffle, you can reproduce
it below even without Unicorn:
------------------- 8< ----------------
pid = fork do
rand # removing this will segfault
(1..10).to_a.shuffle
end
p Process.waitpid2(pid)
------------------- 8< ----------------
I'll see if I can fix it and follow up with a report to ruby-core/redmine
--
Eric Wong
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next prev parent reply other threads:[~2010-03-14 23:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-14 22:00 unicorn segfaulting on Array.shuffle under ruby 1.9.1 Bharanee Rathna
2010-03-14 23:53 ` Eric Wong [this message]
2010-03-15 0:44 ` Eric Wong
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