Re: Kernel stack for a process

["Joseph A. Knapka" <jknapka@earthlink.net>]

Nagaraj wrote:
> 
> Hiiiyooo,
> 
> Ive another silly question.
> I gather that max kernel stack allocated for a process
> is 8k ( 2 pages ) by the linux kernel.  ( correct me if im wrong here ).
> 
> If so, what happens when a dirty recursive program
> never stops ?

You have a nice big smoking crater in the landscape. Kernel
code is carefully written to avoid deep call nesting.
The stack isn't even 8k, because the task struct lives
in that 2-page block as well. (I'm not sure if GCC
is smart enough to do tail-recursion optimization or
not, but I wouldn't count on it.)

Cheers,

-- Joe
  "I'd rather chew my leg off than maintain Java code, which
   sucks, 'cause I have a lot of Java code to maintain and
   the leg surgery is starting to get expensive." - Me
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/