RE: [coLinux-users] Re: [coLinux-devel] colinux-0.6.2-pre1 crashed on athlon 64

[Steve F. <ste...@be...>]

/PAE would be in your boot.ini on the line for the OS options. Unless
you have gigs and gigs fo memory on your machine, odds are you don't
have this set.  I have this set on some SQL Server boxes we have with
6GB of memory.


> -----Original Message-----
> From: col...@li...=20
> [mailto:col...@li...] On Behalf=20
> Of Joe Wells (reverse mailbox letters for non-public replies)
> Sent: Tuesday, September 28, 2004 2:30 PM
> To: col...@li...;=20
> col...@li...
> Subject: Re: [coLinux-users] Re: [coLinux-devel]=20
> colinux-0.6.2-pre1 crashed on athlon 64
>=20
> Nuno Lucas <lu...@nl...> writes:
>=20
> > Joe Wells, dando pulos de alegria, escreveu :
> > > Is this an issue only for AMD CPUs or does it also affect=20
> some Intel=20
> > > CPUs?
> > > I've tried to follow this thread on the mailing lists and=20
> it is not=20
> > > clear to me what conclusion to draw.
> > >
> >=20
> > To make it clearer, the problem can be triggered with any Pentium=20
> > II/III/IV and the old Pentium Pro. And any compatible AMD that=20
> > implements the PAE mechanism (Physical Address Extensions).
> >=20
> > Windows doesn't enable PAE unless explicitely ordered to (with the=20
> > /PAE switch), but in order to use DEP/NX, the processor needs to be=20
> > run with PAE enabled (to have 64 bits page tables, instead=20
> of 32 bits).
>=20
> Where is the "/PAE" switch supplied?  How can I tell if it is=20
> on?  How can I tell if my machine has DEP/NX (and what is=20
> this anyway?)?
>=20
> I'm currently afraid to upgrade to SP2 (it's just sitting on=20
> my hard disk waiting for me to click on the little icon in=20
> the tray) because I don't understand the implications of this issue.
>=20
> Thanks for any advice you can supply!
>=20
> --
> Joe
>=20
> > So, on Amd64 processors (and maybe Intel Ithanium, not sure about=20
> > this), the bug will be triggered as soon as one enables the=20
> SP2 DEP/NX=20
> > feature, but because PAE is also enabled.
> >=20
> > What is not tested yet is if, after correcting the PAE=20
> issue, it will=20
> > have problems with the DEP/NX one. But the second should be easy=20
> > enough to solve.
> >=20
> >=20
> > Regards,
> > ~Nuno Lucas
> >=20
> >=20
> >=20
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>=20
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