connection.rb:11: [BUG] Segmentation fault at 0x0000000000000000

[rgaufman]

I'm not sure if this is ohm or redic related, when I run .first or [0] I get a segmentation fault, e.g.

$ irb
irb(main):001:0> require "ohm"
irb(main):001:0> Ohm.redis = Redic.new("redis://127.0.0.1:6379")
irb(main):001:0> Ohm.redis.call "SET", "Foo", "Bar"
/usr/local/lib/ruby/gems/2.5.0/gems/redic-1.5.0/lib/redic/connection.rb:11: [BUG] Segmentation fault at 0x0000000000000000
...

The full details and log file is here: amakawa/redic#12

Any ideas why this is happening?

My Ruby/Redis/Redic/Ohm versions are:

• ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17]
• Redis server v=4.0.9 sha=00000000:0 malloc=libc bits=64 build=e0c8d37381c486c6
• redic (1.5.0
• ohm (3.1.1)

[soveran]

Hello, thanks for the report. Do you have hiredis installed?

I was unable to reproduce it with ruby 2.5.0 but I'm upgrading it right now to test against the version you have.

[soveran]

OK, I could reproduce it with ruby 2.5.1p57, now I have to find out what's going on :-)

[soveran]

Can you try reinstalling hiredis? It should be gem uninstall hiredis and then gem install hiredis. It solved the problem for me, let me know how it goes.

[rgaufman]

That worked, I also tried installing ruby2.6.0-preview1 which worked too :)

[soveran]

Excellent! Yes, it was scary but it has to do with the compiled extension of hiredis. I guess many users will run into the same issue, so thanks a lot for bringing this up.