On Mon, 10 Dec 2001, Rik van Riel wrote:
> On Mon, 10 Dec 2001 volodya@mindspring.com wrote:
> > On Mon, 10 Dec 2001, Alan Cox wrote:
> >
> > > > I don't want to move them - I just want to collect all that are free and
> > > > then try to free some more.
> > >
> > > How will you free them, you don't know who owns them.
> >
> > I think you misunderstood me - this allocation happens in response to
> > the system call _not_ in an interrupt handler. So it is ok to wait -
> > as long as needed. I was thinking of calling page swapper or something
> > and perhaps going after I/O buffers first.
>
> Even if you have a handle on a physical page, you don't know
> what processes are using the page, nor if there are additional
> users besides the processes.
>
> This makes it rather hard to go around trying to free pages
> within a certain physical range.
Well, what does kernel do when it runs out of memory ? For example when I
mmap a large file and start reading it back and force ?
Vladimir Dergachev
>
> cheers,
>
> Rik
> --
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>
> http://www.surriel.com/ http://distro.conectiva.com/
>
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This archive was generated by hypermail 2b29 : Sat Dec 15 2001 - 21:00:18 EST