title: Error when running 'vagrant up' -- Too many open files - getcwd (Errno::EMFILE)
body: <p>I have a very basic Vagrantfile, and when I call 'vagrant up' for the first time (after destroying the box) I get the error below just about every time. Any ideas why? I'm at a loss. I'm on OSX.</p>
  
  <p>Vagrantfile:</p>
  
  <pre><code># -*- mode: ruby -*-
  # vi: set ft=ruby :
  
  Vagrant.configure("2") do |config|
    config.vm.hostname = "myapp-berkshelf"
    config.vm.box = "precise64_provisioned"
    config.vm.box_url = "http://dl.dropbox.com/u/1537815/precise64.box"
    config.omnibus.chef_version = :latest
    config.vm.network :private_network, ip: "33.33.33.10"
  
    config.vm.provision :chef_solo do |chef|
      chef.cookbooks_path = ["cookbooks", "my-cookbooks"]
      chef.add_recipe "nginx"
    end
  
    config.berkshelf.enabled = true
  
    config.vm.provision :chef_solo do |chef|
      chef.json = {
        :mysql =&gt; {
          :server_root_password =&gt; 'rootpass',
          :server_debian_password =&gt; 'debpass',
          :server_repl_password =&gt; 'replpass'
        }
      }
  
      chef.run_list = [
          "recipe[myapp::default]"
      ]
    end
  end
  </code></pre>
  
  <p>Backtrace:</p>
  
  <pre><code>INFO global: Vagrant version: 1.3.1
   ...&lt;VagrantPlugins::Omnibus::Action::InstallChef:0x00000108507c98&gt;
   INFO warden: Calling action: #&lt;Berkshelf::Vagrant::Action::Install:0x00000108507c20&gt;
   INFO interface: warn: This version of the Berkshelf plugin has not been fully tested on this version of Vagrant.
  [Berkshelf] This version of the Berkshelf plugin has not been fully tested on this version of Vagrant.
   INFO interface: warn: You should check for a newer version of vagrant-berkshelf.
  [Berkshelf] You should check for a newer version of vagrant-berkshelf.
   INFO interface: warn: If you encounter any errors with this version, please report them at https://github.com/RiotGames/vagrant-berkshelf/issues
  [Berkshelf] If you encounter any errors with this version, please report them at https://github.com/RiotGames/vagrant-berkshelf/issues
   INFO interface: warn: You can also join the discussion in #berkshelf on Freenode.
  [Berkshelf] You can also join the discussion in #berkshelf on Freenode.
   INFO interface: info: Updating Vagrant's berkshelf: '/Users/macm/.berkshelf/default/vagrant/berkshelf-20130913-24059-1ex15i6-default'
  [Berkshelf] Updating Vagrant's berkshelf: '/Users/macm/.berkshelf/default/vagrant/berkshelf-20130913-24059-1ex15i6-default'
   INFO interface: info: Using application_ruby (2.1.0)
  [Berkshelf] Using application_ruby (2.1.0)
   INFO interface: info: Using postgresql (3.0.4)
  [Berkshelf] Using postgresql (3.0.4)
   INFO interface: info: Using apt (2.1.1)
  [Berkshelf] Using apt (2.1.1)
   INFO interface: info: Using user (0.3.0)
  [Berkshelf] Using user (0.3.0)
   INFO interface: info: Using ruby_build (0.8.0)
  [Berkshelf] Using ruby_build (0.8.0)
   INFO interface: info: Using nginx (1.8.0)
  [Berkshelf] Using nginx (1.8.0)
   INFO interface: info: Using application (3.0.0)
  [Berkshelf] Using application (3.0.0)
   INFO interface: info: Using unicorn (1.3.0)
  [Berkshelf] Using unicorn (1.3.0)
   INFO interface: info: Using apache2 (1.7.0)
  [Berkshelf] Using apache2 (1.7.0)
   INFO interface: info: Using passenger_apache2 (2.0.4)
  [Berkshelf] Using passenger_apache2 (2.0.4)
   INFO interface: info: Using build-essential (1.4.2)
  [Berkshelf] Using build-essential (1.4.2)
   INFO interface: info: Using runit (1.2.0)
  [Berkshelf] Using runit (1.2.0)
   INFO interface: info: Using yum (2.3.2)
  [Berkshelf] Using yum (2.3.2)
   INFO interface: info: Using openssl (1.1.0)
  [Berkshelf] Using openssl (1.1.0)
   INFO interface: info: Using ohai (1.1.12)
  [Berkshelf] Using ohai (1.1.12)
   INFO warden: Calling action: #&lt;Berkshelf::Vagrant::Action::Upload:0x00000108507bf8&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::EnvSet:0x00000108507bd0&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::PrepareForwardedPortCollisionParams:0x00000108507ba8&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "vms"]
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "72dd1e43-2966-4b2a-96ea-e25df6ee7d5e", "--machinereadable"]
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::HandleForwardedPortCollisions:0x00000108507b80&gt;
   INFO handle_port_collisions: Detecting any forwarded port collisions...
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::PruneNFSExports:0x00000100b1ae08&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "vms"]
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::NFS:0x00000100b1ade0&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::PrepareNFSSettings:0x000001084eea68&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::ClearSharedFolders:0x000001084d9f50&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::ShareFolders:0x000001084d9f28&gt;
   INFO interface: info: Creating shared folders metadata...
  [default] Creating shared folders metadata...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "sharedfolder", "add", "f31f231f-b99d-45ac-91cf-0929308714e9", "--name", "/vagrant", "--hostpath", "/Users/macm/Documents/Development/chef-repo/my-cookbooks/measureful"]
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "setextradata", "f31f231f-b99d-45ac-91cf-0929308714e9", "VBoxInternal2/SharedFoldersEnableSymlinksCreate//vagrant", "1"]
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "sharedfolder", "add", "f31f231f-b99d-45ac-91cf-0929308714e9", "--name", "/tmp/vagrant-chef-1/chef-solo-1/cookbooks", "--hostpath", "/Users/macm/.berkshelf/default/vagrant/berkshelf-20130913-24059-1ex15i6-default"]
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "setextradata", "f31f231f-b99d-45ac-91cf-0929308714e9", "VBoxInternal2/SharedFoldersEnableSymlinksCreate//tmp/vagrant-chef-1/chef-solo-1/cookbooks", "1"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::ClearNetworkInterfaces:0x00000106ba6650&gt;
   INFO interface: info: Clearing any previously set network interfaces...
  [default] Clearing any previously set network interfaces...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "modifyvm", "f31f231f-b99d-45ac-91cf-0929308714e9", "--nic2", "none", "--nic3", "none", "--nic4", "none", "--nic5", "none", "--nic6", "none", "--nic7", "none", "--nic8", "none"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Network:0x00000106ba6628&gt;
   INFO network: Determining network adapters required for high-level configuration...
   INFO network:  -- Slot 2: hostonly
   INFO network: Determining adapters and compiling network configuration...
   INFO network: Network slot 1. Type: nat.
   INFO network: Network slot 2. Type: hostonly.
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "bridgedifs"]
   INFO network: Searching for matching hostonly network: 33.33.33.10
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "dhcpservers"]
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "hostonlyifs"]
   INFO network: Enabling adapters...
   INFO interface: info: Preparing network interfaces based on configuration...
  [default] Preparing network interfaces based on configuration...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "modifyvm", "f31f231f-b99d-45ac-91cf-0929308714e9", "--nic1", "nat", "--nic2", "hostonly", "--hostonlyadapter2", "vboxnet0"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::ForwardPorts:0x00000100b07da8&gt;
   INFO interface: info: Forwarding ports...
  [default] Forwarding ports...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO interface: info: -- 22 =&gt; 2222 (adapter 1)
  [default] -- 22 =&gt; 2222 (adapter 1)
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "modifyvm", "f31f231f-b99d-45ac-91cf-0929308714e9", "--natpf1", "ssh,tcp,127.0.0.1,2222,,22"]
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::SetHostname:0x00000100b07d80&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::SaneDefaults:0x00000100b07d58&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "storagectl", "f31f231f-b99d-45ac-91cf-0929308714e9", "--name", "SATA Controller", "--hostiocache", "on"]
   INFO sanedefaults: Enabling the Host I/O cache on the SATA controller... (exit status = 0)
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "modifyvm", "f31f231f-b99d-45ac-91cf-0929308714e9", "--rtcuseutc", "on"]
   INFO sanedefaults: Enabling rtcuseutc... (exit status = 0)
   INFO sanedefaults: Automatically figuring out whether to enable/disable NAT DNS proxy...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "modifyvm", "f31f231f-b99d-45ac-91cf-0929308714e9", "--natdnsproxy1", "on"]
   INFO sanedefaults: Enable the NAT DNS proxy on adapter 1... (exit status = 0)
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Customize:0x00000100c3ab08&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Boot:0x00000100c3aae0&gt;
   INFO interface: info: Booting VM...
  [default] Booting VM...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "startvm", "f31f231f-b99d-45ac-91cf-0929308714e9", "--type", "headless"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Customize:0x00000100c3aab8&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::WaitForCommunicator:0x00000100c3aa90&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO interface: info: Waiting for machine to boot. This may take a few minutes...
  [default] Waiting for machine to boot. This may take a few minutes...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO ssh: Attempting SSH connnection...
   INFO ssh: Attempting to connect to SSH...
   INFO ssh:   - Host: 127.0.0.1
   INFO ssh:   - Port: 2222
   INFO ssh:   - Username: vagrant
   INFO ssh:   - Key Path: /Users/macm/.vagrant.d/insecure_private_key
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
  
  ERROR warden: Error occurred: Timed out while waiting for the machine to boot. This means that
  Vagrant was unable to communicate with the guest machine within
  the configured ("config.ssh.timeout" value) time period. This can
  mean a number of things.
  
  If you're using a custom box, make sure that networking is properly
  working and you're able to connect to the machine. It is a common
  problem that networking isn't setup properly in these boxes.
  Verify that authentication configurations are also setup properly,
  as well.
  
  If the box appears to be booting properly, you may want to increase
  the timeout ("config.ssh.timeout") value.
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
  
  ERROR warden: Error occurred: Timed out while waiting for the machine to boot. This means that
  Vagrant was unable to communicate with the guest machine within
  the configured ("config.ssh.timeout" value) time period. This can
  mean a number of things.
  
  If you're using a custom box, make sure that networking is properly
  working and you're able to connect to the machine. It is a common
  problem that networking isn't setup properly in these boxes.
  Verify that authentication configurations are also setup properly,
  as well.
  
  If the box appears to be booting properly, you may want to increase
  the timeout ("config.ssh.timeout") value.
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x0000010137f490&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
   INFO warden: Recovery complete.
  ERROR warden: Error occurred: Timed out while waiting for the machine to boot. This means that
  Vagrant was unable to communicate with the guest machine within
  the configured ("config.ssh.timeout" value) time period. This can
  mean a number of things.
  
  If you're using a custom box, make sure that networking is properly
  working and you're able to connect to the machine. It is a common
  problem that networking isn't setup properly in these boxes.
  Verify that authentication configurations are also setup properly,
  as well.
  
  If the box appears to be booting properly, you may want to increase
  the timeout ("config.ssh.timeout") value.
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x00000106b2e790&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
   INFO warden: Recovery complete.
  ERROR warden: Error occurred: Timed out while waiting for the machine to boot. This means that
  Vagrant was unable to communicate with the guest machine within
  the configured ("config.ssh.timeout" value) time period. This can
  mean a number of things.
  
  If you're using a custom box, make sure that networking is properly
  working and you're able to connect to the machine. It is a common
  problem that networking isn't setup properly in these boxes.
  Verify that authentication configurations are also setup properly,
  as well.
  
  If the box appears to be booting properly, you may want to increase
  the timeout ("config.ssh.timeout") value.
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b4558&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b45f8&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Import:0x000001075b8738&gt;
  ERROR warden: Error occurred: Too many open files - getcwd
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b4558&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b45f8&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Import:0x000001075b8738&gt;
  ERROR warden: Error occurred: Too many open files - getcwd
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b4558&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b45f8&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Import:0x000001075b8738&gt;
  ERROR warden: Error occurred: Too many open files - getcwd
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b4558&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b45f8&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Calling recover: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Import:0x000001075b8738&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Builder:0x000001026cea50&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::CheckVirtualbox:0x00000106977d98&gt;
   INFO base: VBoxManage path: VBoxManage
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "--version"]
   INFO meta: Using VirtualBox driver: VagrantPlugins::ProviderVirtualBox::Driver::Version_4_2
   INFO base: VBoxManage path: VBoxManage
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "hostonlyifs"]
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::Call:0x00000106977e38&gt;
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Builder:0x000001086aeb28&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Created:0x0000010358a990&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Warden:0x0000010712a5e0&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::Call:0x0000010712a540&gt;
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Builder:0x00000106acbd48&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::DestroyConfirm:0x00000106acc608&gt;
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Warden:0x00000100d29dc0&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::EnvSet:0x00000100d29d20&gt;
   INFO warden: Calling action: #&lt;Berkshelf::Vagrant::Action::SetUI:0x00000100d29cf8&gt;
   INFO warden: Calling action: #&lt;Berkshelf::Vagrant::Action::LoadShelf:0x00000100d29cd0&gt;
   INFO warden: Calling action: #&lt;Berkshelf::Vagrant::Action::ConfigureChef:0x00000100d29ca8&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::ConfigValidate:0x00000100d29c58&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::CheckAccessible:0x00000100d29c30&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::EnvSet:0x00000100d29c08&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::CheckVirtualbox:0x00000100d29be0&gt;
   INFO base: VBoxManage path: VBoxManage
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "--version"]
   INFO meta: Using VirtualBox driver: VagrantPlugins::ProviderVirtualBox::Driver::Version_4_2
   INFO base: VBoxManage path: VBoxManage
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "hostonlyifs"]
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::Call:0x00000100d29bb8&gt;
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Builder:0x00000108368090&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Created:0x0000010836d2c0&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Warden:0x00000100df0218&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::CheckAccessible:0x00000100df01a0&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::DiscardState:0x00000100df0178&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::Call:0x00000100df0150&gt;
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Builder:0x000001074e9640&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::IsPaused:0x000001074ee5a0&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Warden:0x00000108380e38&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::Call:0x00000100df0100&gt;
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Builder:0x00000106b405d0&gt;
   INFO warden: Calling action: #&lt;Vagrant::Action::Builtin::GracefulHalt:0x00000108390b80&gt;
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 2 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Warden:0x0000010681ec80&gt;
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::ForcedHalt:0x0000010681ec08&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "showvminfo", "f31f231f-b99d-45ac-91cf-0929308714e9", "--machinereadable"]
   INFO interface: info: Forcing shutdown of VM...
  [default] Forcing shutdown of VM...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "controlvm", "f31f231f-b99d-45ac-91cf-0929308714e9", "poweroff"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::PruneNFSExports:0x00000100d29b40&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "vms"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::Destroy:0x00000100d29b18&gt;
   INFO interface: info: Destroying VM and associated drives...
  [default] Destroying VM and associated drives...
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "unregistervm", "f31f231f-b99d-45ac-91cf-0929308714e9", "--delete"]
   INFO machine: New machine ID: nil
   INFO base: VBoxManage path: VBoxManage
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "--version"]
   INFO meta: Using VirtualBox driver: VagrantPlugins::ProviderVirtualBox::Driver::Version_4_2
   INFO base: VBoxManage path: VBoxManage
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::CleanMachineFolder:0x00000100d29af0&gt;
   INFO subprocess: Starting process: ["/usr/bin/VBoxManage", "list", "systemproperties"]
   INFO warden: Calling action: #&lt;VagrantPlugins::ProviderVirtualBox::Action::DestroyUnusedNetworkInterfaces:0x00000100d29ac8&gt;
   INFO warden: Recovery complete.
   INFO warden: Calling recover: #&lt;Vagrant::Action::Builtin::Call:0x000001024b4710&gt;
   INFO warden: Beginning recovery process...
   INFO warden: Recovery complete.
   INFO environment: Running hook: environment_unload
   INFO runner: Preparing hooks for middleware sequence...
   INFO runner: 1 hooks defined.
   INFO runner: Running action: #&lt;Vagrant::Action::Builder:0x00000107155c40&gt;
  /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/util/subprocess.rb:44:in `pwd': Too many open files - getcwd (Errno::EMFILE)
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/util/subprocess.rb:44:in `execute'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/util/subprocess.rb:24:in `execute'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/driver/base.rb:363:in `block in raw'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/util/busy.rb:19:in `busy'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/driver/base.rb:362:in `raw'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/driver/base.rb:292:in `block in execute'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/util/retryable.rb:17:in `retryable'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/driver/base.rb:290:in `execute'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/driver/version_4_2.rb:385:in `read_state'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/provider.rb:70:in `state'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/action/import.rb:36:in `recover'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:66:in `block in recover'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:63:in `each'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:63:in `recover'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/builtin/call.rb:62:in `recover'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:66:in `block in recover'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:63:in `each'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:63:in `recover'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:52:in `rescue in call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:28:in `call'
      from /Users/macm/.vagrant.d/gems/gems/vagrant-berkshelf-1.3.3/lib/berkshelf/vagrant/action/set_ui.rb:12:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:34:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/builtin/env_set.rb:19:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:34:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/builtin/call.rb:57:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:34:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/plugins/providers/virtualbox/action/check_virtualbox.rb:17:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/warden.rb:34:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/builder.rb:116:in `call'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/runner.rb:61:in `block in run'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/util/busy.rb:19:in `busy'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/action/runner.rb:61:in `run'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/machine.rb:147:in `action'
      from /Applications/Vagrant/embedded/gems/gems/vagrant-1.3.1/lib/vagrant/batch_action.rb:63:in `block (2 levels) in run'
  </code></pre>