> On Tue, 13 Feb 2007 23:24:43 +0100 Ingo Molnar <[email protected]> wrote:
> > If it's only a few pages you don't need any resource accounting. If
> > it's more then it's nasty to steal the users quota. I think plain
> > gup() would be better.
>
> get_user_pages() would have to be limited in some way - and i didnt want
> to add yet another wacky limit thing - so i just used the already
> existing mlock() infrastructure for this. If Oracle wants to set up a 10
> MB ringbuffer, they can set the PAM resource limits to 11 MB and still
> have enough stuff left. And i dont really expect GPG to start using
> syslets - just yet ;-)
>
> a single page is enough for 1024 completion pointers - that's more than
> enough for most purposes - and the default mlock limit is 40K.
So if I have an application which instantiates a single mlocked page
for this purpose, I can only run ten of them at once, and any other
mlock-using process which I'm using starts to mysteriously fail.
It seems like a problem to me..
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