`hash' called on unexpected T_NODE object

`hash' called on unexpected T_NODE object

[Philip Cunningham]

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Hello

We recently experienced an issue with our staging server on Heroku. It's the first time we've seen this error and the staging server hasn't been updated in a week or so. It's not clear to me how I should investigate this further so I would appreciate any assistance you might offer. Some details are below:

``` ruby version
ruby 2.0.0p481 (2014-05-08 revision 45883) [x86_64-linux]
```

``` log
2014-07-22T14:47:34.306596+00:00 app[web.2]: /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_request.rb:80:in `parse': method `hash' called on unexpected T_NODE object (0x007fa3c36823d8 flags=0x33b21c) (NotImplementedError)
2014-07-22T14:47:34.306602+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_request.rb:80:in `read'
2014-07-22T14:47:34.306627+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:572:in `process_client'
2014-07-22T14:47:34.306629+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:666:in `worker_loop'
2014-07-22T14:47:34.306632+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:521:in `spawn_missing_workers'
2014-07-22T14:47:34.306653+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:532:in `maintain_worker_count'
2014-07-22T14:47:34.306657+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:290:in `join'
2014-07-22T14:47:34.306658+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/bin/unicorn:126:in `<top (required)>'
2014-07-22T14:47:34.306659+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/bin/unicorn:23:in `load'
2014-07-22T14:47:34.306660+00:00 app[web.2]:    from /app/vendor/bundle/ruby/2.0.0/bin/unicorn:23:in `<main>'
2014-07-22T14:47:34.461811+00:00 app[web.2]: E, [2014-07-22T14:47:34.461628 #2] ERROR -- : reaped #<Process::Status: pid 122 exit 1> worker=0
```

Cheers
Philip

Re: `hash' called on unexpected T_NODE object

[Eric Wong]

Philip Cunningham <philip@irisconnect.co.uk> wrote:
> We recently experienced an issue with our staging server on Heroku.
> It's the first time we've seen this error and the staging server
> hasn't been updated in a week or so. It's not clear to me how I should
> investigate this further so I would appreciate any assistance you
> might offer. Some details are below:

> ``` ruby version
> ruby 2.0.0p481 (2014-05-08 revision 45883) [x86_64-linux]
> ```
> 
> ``` log
> 2014-07-22T14:47:34.306596+00:00 app[web.2]: /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_request.rb:80:in `parse': method `hash' called on unexpected T_NODE object (0x007fa3c36823d8 flags=0x33b21c) (NotImplementedError)

This is either a version mismatch from objects of different Ruby versions
or memory corruption caused by a C extension.  Since your install
hasn't been touched in a week, I suspect a buggy C extension.

Can you share a list of C extensions, in particular less popular/used
ones so others may have a look and see if there's any known issues?

Just in case, can you ensure you're not carrying around any .so files
between different Ruby versions/installations?

Thanks.

Re: `hash' called on unexpected T_NODE object

[Jonathan del Strother]

I also run into similar problems maybe every week or so.  For
comparison, here's my collection of C extensions :

bcrypt-ruby-3.0.1
fast_xs-0.8.0
ffi-1.9.3
hiredis-0.4.5
kgio-2.8.0
mysql2-0.3.13
nokogiri-1.5.11
oily_png-1.1.1
posix-spawn-0.3.6
raindrops-0.12.0
rmagick-2.13.2
taglib-ruby-0.6.0
thread_safe-0.3.4
unicorn-4.6.2
websocket-driver-0.3.2


On 22 July 2014 17:39, Eric Wong <e@80x24.org> wrote:
> Philip Cunningham <philip@irisconnect.co.uk> wrote:
>> We recently experienced an issue with our staging server on Heroku.
>> It's the first time we've seen this error and the staging server
>> hasn't been updated in a week or so. It's not clear to me how I should
>> investigate this further so I would appreciate any assistance you
>> might offer. Some details are below:
>
>> ``` ruby version
>> ruby 2.0.0p481 (2014-05-08 revision 45883) [x86_64-linux]
>> ```
>>
>> ``` log
>> 2014-07-22T14:47:34.306596+00:00 app[web.2]: /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_request.rb:80:in `parse': method `hash' called on unexpected T_NODE object (0x007fa3c36823d8 flags=0x33b21c) (NotImplementedError)
>
> This is either a version mismatch from objects of different Ruby versions
> or memory corruption caused by a C extension.  Since your install
> hasn't been touched in a week, I suspect a buggy C extension.
>
> Can you share a list of C extensions, in particular less popular/used
> ones so others may have a look and see if there's any known issues?
>
> Just in case, can you ensure you're not carrying around any .so files
> between different Ruby versions/installations?
>
> Thanks.
>