红宝石轨道，乘客得到握手错误
问题描述：
任何线索为什么我会得到以下错误时尝试我的应用程序与 apache /乘客/ MySQL同时运行良好与webtrick？红宝石轨道，乘客得到握手错误
[ 2013-05-12 01:39:31.3313 26429/7f0535e4b700 Pool2/Implementation.cpp:762 ]: Could not spawn process for group /home/ruby/work/depot#default: An error occurred while starting up the preloader: it did not write a handshake message in time.
in 'void Passenger::ApplicationPool2::SmartSpawner::throwPreloaderSpawnException(const std::string&, Passenger::SpawnException::ErrorKind, Passenger::ApplicationPool2::Spawner::BackgroundIOCapturerPtr&, const Passenger::ApplicationPool2::Spawner::DebugDirPtr&)' (SmartSpawner.h:149)
in 'std::string Passenger::ApplicationPool2::SmartSpawner::negotiatePreloaderStartup(Passenger::ApplicationPool2::SmartSpawner::StartupDetails&)' (SmartSpawner.h:539)
in 'void Passenger::ApplicationPool2::SmartSpawner::startPreloader()' (SmartSpawner.h:205)
in 'virtual Passenger::ApplicationPool2::ProcessPtr Passenger::ApplicationPool2::SmartSpawner::spawn(const Passenger::ApplicationPool2::Options&)' (SmartSpawner.h:743)
in 'void Passenger::ApplicationPool2::Group::spawnThreadRealMain(const Passenger::ApplicationPool2::SpawnerPtr&, const Passenger::ApplicationPool2::Options&, unsigned int)' (Implementation.cpp:695)
[ 2013-05-12 01:39:31.3315 26429/7f053688d700 agents/HelperAgent/RequestHandler.h:1884 ]: [Client 20] Cannot checkout session. An error occurred while starting up the preloader: it did not write a handshake message in time.
答
在什么情况下，我是帮助消除接入/ etc/profile文件 - 检查是否别有一番阻塞调用有或.bashrc中/在.bash_profile等乘客产卵bash进程来启动应用程序，它的阅读配置文件/ rc。我知道这是迟到的答案，但也许它会帮助别人。