Re: Out of memory handling broken

Rik van Riel (
Wed, 26 Sep 2001 11:08:31 -0300 (BRST)

On Wed, 26 Sep 2001, Pavel Machek wrote:

> > > I need to allocate as much memory as possible (but not more).
> > > Okay, so I use out_of_memory, right?
> >
> > Nope, out_of_memory() is about virtual memory handling,
> > not at all about physical memory.
> Yes, so... What happens at physical memory exhaustion? System crash?

We swap something out.

But indeed, when the kernel needs memory for itself
and no more memory is available, we'd crash. This is
not something I've ever seen any system get close to,

> Okay, okay. Is there any solution (in 2.4.10) in doing what I want to
> do?

GPF_ATOMIC and giving kswapd a chance to run whenever the
atomic allocations fail ?



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