From: Eric Wong <normalperson@...>
Date: 2014-03-21T21:07:01+00:00
Subject: [ruby-core:61624] Re: [ruby-trunk - Bug #9653] gc_sweep(): unknown data type 0x0

hongbin034@gmail.com wrote:
> Issue #9653 has been updated by Hongbin Lu.
> 
> File Gemfile.txt added
> File Gemfile.lock.txt added

Maybe therubyracer or passenger.  I see a lot of reports on ruby-core
for therubyracer (but otherwise know little about it).

Run:   grep '/gems/.*\.so\>' log-545.txt
To figure out which C extensions you have loaded and start with those.
Also good to look at commit messages/release notes for those to see
if there's relevant fixes.