#5809 HIGH Future : Ctrl-alt-Fn-Erase produces "kernel panic - not syncing: Attempted to kill init!"

Zarro Boogs per Child bugtracker at laptop.org
Thu Jan 3 23:42:26 EST 2008


#5809: Ctrl-alt-Fn-Erase produces "kernel panic - not syncing: Attempted to kill
init!"
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  Reporter:  gnu     |       Owner:  dilinger      
      Type:  defect  |      Status:  new           
  Priority:  high    |   Milestone:  Future Release
 Component:  kernel  |     Version:  Build 650     
Resolution:          |    Keywords:                
  Verified:  0       |    Blocking:                
 Blockedby:          |  
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Comment(by AlbertCahalan):

 The process specified in /proc/sys/kernel/cad_pid gets SIGINT when you
 press Alt-Ctrl-Del.

 By default, that process is 1.

 The default action for SIGINT is the terminate the process without a core.

 When process 1 terminates, the kernel panics.

 Fix:

 Either put a different number in /proc/sys/kernel/cad_pid or have process
 1 do something about SIGINT. The signal can be ignored, caught, blocked,
 whatever... as long as it isn't allowed to kill process 1. You can even
 set /proc/sys/kernel/cad_pid to a value that won't be used, such as
 1234567890.

-- 
Ticket URL: <http://dev.laptop.org/ticket/5809#comment:2>
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