Re: OOM?

[Russell King]

Andrea Arcangeli writes:
> >It doesnt crash the kernel unless init dies
> 
> init can't die in latest 2.2.x kernels.

s/init/pid 1/ ?

Wrong - if pid 1 exits for any reason whatsoever:

1. Take a kernel.  Any 2.2, 2.3 or 2.4 kernel will do.
2. boot it with init=/bin/sh
3. Leave to simmer lightly for a while
4. Exit the shell
5. Experiance great joy as the kernel enters an infinite loop
   in kernel/exit.c:exit_notify() with local cpu interrupts
   disabled and the task list write-locked.
6. Hit the reset button to recover.

Ok, this is user-produced, and I think we've covered all possible
instances of the "real" init being killed.
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