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任何线索为什么我在使用 apache/passenger/mysql 尝试我的应用程序时会收到以下错误，而在 webtrick 中运行良好？

[ 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.
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在我的情况下，帮助删除对 /etc/profile 的访问 - 检查您是否在那里或 bashrc/bash_profile 等中没有一些阻塞调用。Passenger 正在生成 bash 进程以启动应用程序并且它正在读取 profile/rc。我知道这是迟到的答案，但也许它会帮助某人。

于 2013-06-27T22:47:39.863 回答