On 10/16/07, Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx> wrote:
Why wouldn't things in kernel space be swapped out? Dosen't make sense...
Hi...
> I am new to Linux MM. Can someone answer my following questions?
>
I'll try...
> 1> Where is the process page table(mm->pgd) stored? Is it stored below
> PAGE_OFFSET ?
Above PAGE_OFFSET, in other word... it's inside kernel space, just like
the task_struct descriptor.
> If yes, then wouldn't there
> be a chance of the page tables getting accidentally corrupted by the user
> process as it is in the user address space?
>
> 2> What will happen if the page containing the process page table(mm->pgd)
> is swapped on the disk and the process is scheduled for execution ?
>
Since it's in kernel space, it won't be swapped out.
Why wouldn't things in kernel space be swapped out? Dosen't make sense...
regards,
Mulyadi
--
To unsubscribe from this list: send an email with
"unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
Please read the FAQ at http://kernelnewbies.org/FAQ
--
Paul Francisco = pAnk7.yArdbird
http://pank7yardbird.googlepages.com
http://hi.baidu.com/pank7
.' ' ` . pAnk7.yArdbird ^_^
: :' : pank7yardbird(AT)gmail.com
`. ` ' liyi(AT)net.pku.edu.cn
`- Debian GNU/Linux -- The power of reedom
