title: KDL
text: # KDL
  
  A KDL (short for Kernel Debug(ger) Land) is a term used on BeOS/Haiku and possibly other operating systems for a serious kernel error which causes the computer to drop into the kernel debugger.
  
  While a KDL brought about by a buggy driver which is not crucial, such as a filesystem driver, can be escaped from (with the command 'es'), it usually leaves the user needing to reboot.
  
  ## Entering the kernel debugger
  
  The Kernel Debug(ger) Land can also be entered on BeOS/Haiku at any time by pressing Alt-SysReq-D on the keyboard while the system is running.
  
  