> What about the PGE/PTE problem? Any user can just mmap/munmap all possible
> (768 under x86) page tables for their process, then use up a lot of GFP_KERNEL
Do you have a demo for this ?
I think the solution is to just add PAGE_SIZE or whatever to RLIMIT_AS
every time a new page table chunk is allocated. If RLIMIT_AS cannot
be legitimately overridden like this, then add some new one and set a
sane default. If you do it the second way don't forget to notify the
glibc folks :-)
Later,
David S. Miller
davem@dm.cobaltmicro.com
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