Bug#556631: KSM support
On Tue, Nov 17, 2009 at 01:50:40PM +0100, Aurelien Jarno wrote:
> On Tue, Nov 17, 2009 at 11:44:02AM +0100, Guido Trotter wrote:
> > On Tue, Nov 17, 2009 at 10:37:03AM +0100, Aurelien Jarno wrote:
> >
> > Hi,
> >
> > > > But at:
> > > > http://www.eglibc.org/archives/patches/msg00793.html
> > > >
> > > > I was told to wait for upstream GNU glibc support, for a routine merge.
> > >
> > > That's actually the reverse. You should submit the patch to upstream GNU
> > > libc, so that it is merged later in EGLIBC.
> > >
> >
> > Yes, that's what I meant.
>
> Unless I missed something, I have seen no submission. I'll submit it
> during the afternoon.
Done. The patch has been merged upstream in the meanwhile.
> > > > KSM will be present in the 2.6.32 kernel, which is going to be released
> > > > soon. It might be nice if Debian could include this patch earlier, since
> > > > for us eglibc is the default libc, so that as soon as that kernel is out
> > > > and the kvm/qemu people package a version with KSM support, the
> > > > compilers will pick up the flag and KSM will work in unstable/squeeze.
> > > > (qemu/kvm code has an #ifdef which means that they will be compiled
> > > > without kvm if glibc doesn't have the flag)
> > > >
> > >
> > > Given it changes the API, I would prefer to see it accepted upstream
> > > first.
> > >
> >
> > But given that it's in the upcoming kernel, and also a feature the newest Fedora
> > is shipping with it
> > (http://www.internetnews.com/dev-news/article.php/3848441/Fedora+12+Linux+Tackles+Virtualization.htm)
> > is there any reason why this wouldn't reach upstream anyway?
>
> I see no reason for it not to be accepted upstream. But waiting for
> the upstream patch also means that we have the correct patch, including
> all the architectures (even those in ports/).
>
> I don't expect it to be long, it's probably a matter of days after the
> patch has been submitted, probably even before 2.6.32 is released.
>
The patch is also in the pkg-glibc's SVN, it will be included in the
next upload.
--
Aurelien Jarno GPG: 1024D/F1BCDB73
aurelien@aurel32.net http://www.aurel32.net
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