Re: Have the 2.4 kernel memory management problems on large machines been fixed?

[Alan Cox]

> > large machines. I haven't had a chance to run my own test cases on the
> > 2.4.18 kernel from Red Hat 7.3 yet, so I can't make any personal
> > contribution to this discussion.
> 
> RedHat has fixed the problem in its kernels. There are fixes out there, but
> Linus is not applying them. I would venture that this is because they would
> fix the problems *for the moment* and take away interest in revamping VM for
> real.

7.3 has some of what is needed but not all. To go past 16Gb you need highmem
mapped page tables which I'm pretty sure did not make it in.