Ruby 1.9.3-p0 and RSpec causes frequent segmentation faults

Question

Is it just me, or has Ruby 1.9.3 introduced frequent segmentation faults when running RSpec?

Since upgrading to 1.9.3, I find startup time is noticeably quicker, however I get segmentation faults when running RSpec around 50% of the time.

The output that I am getting from Ruby is at http://pastebin.com/89YmpzaJ and my Gemfile is at http://pastebin.com/L6r73Max

Does anyone know what could be causing this? I am seeing this problem on both my CI server and my local development machine.

I have add segmentation faults trying to use rails 3.1 with ruby 1.8.7 that went away when I made sure rails used 1.9.2+ Don't know if that helps (so not an answer) but I thought I would mention it. Sometimes when you have multiple ruby versions the wrong one gets picked too. — Michael Durrant, Nov 09 '11 at 13:40

score 7 · Accepted Answer · answered Dec 23 '11 at 18:13

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There appears to be a problem with pry-doc/yard that can cause segfaults in yard. The best workaround I know of is to simply not use pry-doc. Pry-rails depends on pry-doc as a convenience, so in addition to removing pry-doc from your Gemfile, you will need modify pry-rails to remove its dependency on pry-doc.

(I've already forked pry-rails to do that: https://github.com/chrisfarber/pry-rails.)

answered Dec 23 '11 at 18:13

Chris Farber

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Thanks Chris. Not been using pry-doc for a few days now and since not had any issues. – Matthew O'Riordan Jan 02 '12 at 08:30
BTW. Chris, have you raised a ticket with Pry-rails? If not, I will raise one so that they are aware of the issue. – Matthew O'Riordan Jan 02 '12 at 08:30
Good idea, Matt. I've posted an issue on its github page. – Chris Farber Jan 04 '12 at 15:22

Marian Theisen · Answer 2 · 2011-11-10T07:23:30.423

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the problem doesn't lie with ruby 1.9.3 but with your compiler, i guess you're on mac os x lio n and use Xcode 4.2? the new default compiler (llvm) somehow introduces a bug, which causes the continuation check in yard to cause a seg fault. as far as i remember, it should work, if you compile it with gcc 4.2

i think, this should do it

CC=gcc-4.2 rvm install 1.9.3

edited Nov 10 '11 at 07:23

answered Nov 09 '11 at 13:36

Marian Theisen

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Indeed I am using Mac OS X Lion, and XCode 4.2 How can I get rvm to compile using GCC instead of Xcode? – Matthew O'Riordan Nov 09 '11 at 16:53
Nope, unfortunately made no difference. – Matthew O'Riordan Nov 10 '11 at 13:17
There's a good post over here for setting your default compiler: http://stackoverflow.com/questions/1165361/setting-gcc-4-2-as-the-default-compiler-on-mac-os-x-leopard – Jul 27 '12 at 20:37

score 0 · Answer 3 · answered Jun 06 '12 at 10:58

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I had the same problem and after updating pry-doc to version 0.4.2, rspec runs all the time with out "segmentation faults"

answered Jun 06 '12 at 10:58

user773093

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Ruby 1.9.3-p0 and RSpec causes frequent segmentation faults

3 Answers3

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