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"NotImplementedError: waitpid unsupported or native support failed to load" with 9.0.0.0 on Ubuntu if build tools not installed #3285

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npryce opened this issue Aug 26, 2015 · 9 comments
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"NotImplementedError: waitpid unsupported or native support failed to load" with 9.0.0.0 on Ubuntu if build tools not installed #3285

npryce opened this issue Aug 26, 2015 · 9 comments
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core JRuby 9000
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JRuby 1.7.23

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@npryce
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npryce commented Aug 26, 2015

Installing JRuby 9.0.0.0 with rbenv and ruby-build in a Docker container running Ubuntu 14.04 and Oracle Java JDK 1.8.0_60.

If we do not install the build-essential package with apt-get first, installing JRuby fails, with the error message:

"NotImplementedError: waitpid unsupported or native support failed to load"

JRuby appears to depend on a library installed as a dependency of build-essentials, but it's not clear which one.

We would prefer not to install build-essentials on a production box, so this is currently a problem for us.

As a workaround, could you specify which .so(s) are required by JRuby to implement its POSIX runtime API?
@headius
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headius commented Aug 26, 2015

On Linux systems I believe all we try to load is libc and licrypt. Perhaps you could trace the startup of the JVM + JRuby and see which library is failing to load? You can also try passing -Xnative.verbose=true to JRuby.

There are some systems where /tmp is not allowed to contain executable code, breaking our unpack+load of FFI libraries. I don't think that's the case here, though.

@mkristian
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mkristian commented Aug 26, 2015 via email

@mkristian
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it was jvm tar.gz installed from orable (no apt or dpkg) no build-essentials, etc does fail to find libcrypt

@npryce
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npryce commented Aug 26, 2015

It appears that on Ubuntu, libcrypt is installed as libcrypt.so.1, not as libcrypt.so. For example:

# ldconfig -p | grep libcrypt
    libcrypto.so.1.0.0 (libc6,x86-64) => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0
    libcrypt.so.1 (libc6,x86-64, OS ABI: Linux 2.6.24) => /lib/x86_64-linux-gnu/libcrypt.so.1

Installing libc6-dev creates a symlink for libcrypt.so under /usr/lib. For example:

# ls -l /usr/lib/x86_64-linux-gnu/libcrypt.so 
lrwxrwxrwx 1 root root 35 Feb 25 16:57 /usr/lib/x86_64-linux-gnu/libcrypt.so -> /lib/x86_64-linux-gnu/libcrypt.so.1

After that, the library can be loaded by the name libcrypt.so:

root@5e34dcccdeb1:/lib/x86_64-linux-gnu# ldconfig -p | grep libcrypt
    libcrypto.so.1.0.0 (libc6,x86-64) => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0
    libcrypt.so.1 (libc6,x86-64, OS ABI: Linux 2.6.24) => /lib/x86_64-linux-gnu/libcrypt.so.1
    libcrypt.so (libc6,x86-64, OS ABI: Linux 2.6.24) => /usr/lib/x86_64-linux-gnu/libcrypt.so

Not sure what the solution is, but JRuby should be able to run on production machines that do not have development tools installed.

@mkristian
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my patch for jnr/ffi will solve this issue by using /etc/ld.conf.d/* to find the library paths.

@headius
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headius commented Sep 3, 2015

@mkristian Ahh, very nice. I will merge that and push a snapshot dependency for JRuby. We'll see how it looks and let it bake for a while.

@headius
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headius commented Sep 3, 2015

I have merged jnr/jnr-ffi#50 plus some tweaks and will update 1.7 and master to use jnr-ffi 2.0.4-SNAPSHOT. We'll need to release it before 1.7.23 and 9.0.2.0.

@headius
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headius commented Sep 3, 2015

1.7 update is in 4bee414.

@headius headius mentioned this issue Sep 3, 2015
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headius added a commit that referenced this issue Sep 3, 2015
@headius
Update to jnr-ffi-2.0.4-SNAPSHOT for #3285.
34c2316 
See also jnr/jnr-ffi#50.
@headius headius added this to the JRuby 1.7.23 milestone Sep 3, 2015
@headius headius closed this as completed Sep 3, 2015
@stefanhorning stefanhorning mentioned this issue Sep 30, 2015
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@stefanhorning
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For me jruby-9.0.1.0 installs just fine (without build essentials). But in order to be able to use it's gem command (to install bundler) I also had to resolve the libcrypy issue first with an apt-get intsall libc6-dev.

The error I had:

ubuntu@ip-10-0-3-36:~$ /opt/rubies/jruby-9.0.1.0/bin/gem install bundler
Fetching: bundler-1.10.6.gem (100%)
NotImplementedError: waitpid unsupported or native support failed to load
                       flock at org/jruby/RubyFile.java:298
  block in cache_update_path at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/remote_fetcher.rb:316
                        open at org/jruby/RubyIO.java:1126
                        open at org/jruby/RubyKernel.java:310
           cache_update_path at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/remote_fetcher.rb:315
                    download at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/remote_fetcher.rb:174
                    download at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/source.rb:210
                    download at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/resolver/activation_request.rb:60
            block in install at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/request_set.rb:160
                        each at org/jruby/RubyArray.java:1560
                     install at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/request_set.rb:150
                 install_gem at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/commands/install_command.rb:249
       block in install_gems at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/commands/install_command.rb:299
                        each at org/jruby/RubyArray.java:1560
                install_gems at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/commands/install_command.rb:295
                     execute at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/commands/install_command.rb:202
      invoke_with_build_args at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/command.rb:307
                process_args at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/command_manager.rb:168
                         run at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/command_manager.rb:138
                         run at /opt/rubies/jruby-9.0.1.0/lib/ruby/stdlib/rubygems/gem_runner.rb:54
                       <top> at /opt/rubies/jruby-9.0.1.0/bin/jgem:21
                        load at org/jruby/RubyKernel.java:957
                       <top> at /opt/rubies/jruby-9.0.1.0/bin/gem:4

And after an apt-get install libc6-dev (and cleaning the gem cache), it just worked:

/opt/rubies/jruby-9.0.1.0/bin/gem install bundler
Fetching: bundler-1.10.6.gem (100%)
Successfully installed bundler-1.10.6
1 gem installed

@donv donv mentioned this issue Oct 14, 2015
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@frsyuki frsyuki mentioned this issue Feb 25, 2016
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@headius @mkristian @npryce @stefanhorning