linux khelper service
时间：2009-03-12 来源：ice.wu
一段关于khelper服务的解释：
Linux has various parts of the hotplug subsystem and events subsystem, which work together when a new device is inserted before it becomes available. Linux has a permanent kernel_thread helper running called khelper. This thread is occasionally used as a schedulable context for stuff that call_usermode_helper wants to run - like /sbin/hotplug or modprobe. It’s a pretty cool solution to the problem of calling out to userspace for help. khelper is responsible for running up hotplug when I insert my wifi card, which then configures the netdevice and hooks up ifplugd to watch for net events。
以上摘自http://www.jonmasters.org/blog/2005/01/02/wasted-time-but-fun/
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