On Mon, 25 Sep 2000 [EMAIL PROTECTED] wrote:

> On Mon, Sep 25, 2000 at 09:23:48PM +0100, Alan Cox wrote:
> > > my prediction is that if you show me an example of 
> > > DoS vulnerability,  I can show you fix that does not require bean counting.
> > > Am I wrong?
> > 
> > I think so. Page tables are a good example
> 
> I'm not too sure of what you have in mind, but if it is
>      "process creates vast virtual space to generate many page table
>       entries -- using mmap"
> the answer is, virtual address space quotas and mmap should kill 
> the process on low mem for page tables.

No.  Page tables are not freed after munmap (and for good reason).  The
counting of page table "beans" is critical.

                -ben

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
Please read the FAQ at http://www.tux.org/lkml/

Reply via email to