dc55c914e4
The LXC provider issues the "fetch_ip" action to look up the IP address of the container as part of its "ssh_info" action. Vagrant::LXC::Action.action_fetch_ip checks the machine state using Builtin::IsState, which calls Vagrant::Machine.state, which also updates the state in the machine index and acquires a machine index entry lock to do that. A race condition ensues in WaitForCommunicator.call, where ready_thr tries to acquire the machine index lock while running ssh_info, and states_thr tries to acquire the same lock doing its own state look up (env[:machine].state.id). If they both try to acquire the lock at the same time, one will fail, and an exception will be raised. Work around this issue by checking for the desired machine state (:running) in Vagrant::LXC::Provider.ssh_info, which can get the state from Vagrant::LXC::Provider.state, which in turn does not write out the state into the index file and does not acquire the index entry lock. |
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| .. | ||
| action | ||
| backports/action | ||
| command | ||
| driver | ||
| provider/cap | ||
| action.rb | ||
| config.rb | ||
| driver.rb | ||
| errors.rb | ||
| plugin.rb | ||
| provider.rb | ||
| sudo_wrapper.rb | ||
| synced_folder.rb | ||
| version.rb | ||