From: Christophe@..., Bliard@...
Date: 2014-01-13T10:38:07+00:00
Subject: [ruby-core:59739] [ruby-trunk - Bug #9384] Segfault in ruby 2.1.0p0

Issue #9384 has been updated by Christophe Bliard.

File Gemfile.lock.works added
File Gemfile.lock.segfaults added

Aman Gupta wrote:
> Maybe it's related to the ref gem and weak_reference implementation? Can you try without it?

No I can't because ref is required by therubyracer gem, which is needed for rails assets precompilation. So I tried updating ref gem.

After running `bundle update therubyracer`, the updated gems are:
 - therubyracer from 0.11.3 to 0.12.0
 - libv8 from 3.11.8.17 to 3.16.14.3
 - ref from 1.0.2 to 1.0.5

It seems to fix it: I tried multiple times and it has always worked. I tried with these rubies:
 - ruby 2.1.0 (ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux])
 - ruby 2.1.1 (ruby 2.1.1p2 (2013-12-31 revision 44467) [x86_64-linux])
 - ruby 2.2.0 (ruby 2.2.0dev (2014-01-08 trunk 44527) [x86_64-linux])

I do not know if the culprit is ref, libv8 or therubyracer. I joined the Gemfile.lock files: one when it segfaults and one when it works.

----------------------------------------
Bug #9384: Segfault in ruby 2.1.0p0
https://bugs.ruby-lang.org/issues/9384#change-44260

* Author: Christophe Bliard
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux]
* Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
I got a stacktrace while capistrano was deploying our rails app to our server. We switched to ruby 2.1.0 recently. It worked on my dev station, not in staging.

I attached the ruby stderr as output by capistrano and every line was prepended with '*** [err :: hostname.com] '. I removed them for clarity. It looks like some output has been modified by capistrano too.

If you need further data, please tell me.

---Files--------------------------------
ruby_stderr.log (248 KB)
bundle_exec_rake_assets_precompile.1.log (247 KB)
bundle_exec_rake_assets_precompile.2.log (235 KB)
ruby_rake_assets_precompile_all.1.log (235 KB)
ruby_rake_assets_precompile_all.2.log (234 KB)
bundle_exec_rake_assets_precompile.ruby_trunk.log (224 KB)
Gemfile.lock.works (8.36 KB)
Gemfile.lock.segfaults (8.36 KB)


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