Re: [PATCH 00/31 v2] PTI support for x86_32

From: Pavel Machek
Date: Sun Feb 11 2018 - 17:34:28 EST


On Sun 2018-02-11 11:42:47, Andy Lutomirski wrote:
>
>
> On Feb 11, 2018, at 9:40 AM, Mark D Rustad <mrustad@xxxxxxxxx> wrote:
>
> >> On Feb 11, 2018, at 2:59 AM, Adam Borowski <kilobyte@xxxxxxxxxx> wrote:
> >>
> >>> Does Debian make it easy to upgrade to a 64-bit kernel if you have a
> >>> 32-bit install?
> >>
> >> Quite easy, yeah. Crossgrading userspace is not for the faint of the heart,
> >> but changing just the kernel is fine.
> >
> > ISTR that iscsi doesn't work when running a 64-bit kernel with a 32-bit userspace. I remember someone offered kernel patches to fix it, but I think they were rejected. I haven't messed with that stuff in many years, so perhaps the userspace side now has accommodation for it. It might be something to check on.
> >

It might make sense to retry those patches... if we want people to
move to 64bit kernels, it makes sense to provide complete emulation
for 32bit distros...

> At the risk of suggesting heresy, should we consider removing x86_32
> support at some point?

Heresy!

We still support 486s. I don't know if anyone really uses them, but
T40p is an acceptable machine to ssh from. X60 is still the machine I
prefer for traveling. Fast enough if you don't compile, and nicer
keyboard/screen than X220...

Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html