[CentOS-virt] Xen 4.6.6-9 (with XPTI meltdown mitigation) packages making their way to centos-virt-xen-testing
Pasi Kärkkäinen
pasik at iki.fi
Wed Jan 24 07:01:49 UTC 2018
On Tue, Jan 23, 2018 at 06:20:39PM -0600, Kevin Stange wrote:
> On 01/23/2018 05:57 PM, Karl Johnson wrote:
> >
> >
> > On Tue, Jan 23, 2018 at 4:50 PM, Nathan March <nathan at gt.net
> > <mailto:nathan at gt.net>> wrote:
> >
> > Hi,
> >
> > > Hmm.. isn't this the ldisc bug that was discussed a few months ago on this
> > list,
> > > and a patch was applied to virt-sig kernel aswell?
> > >
> > > Call trace looks similar..
> >
> > Good memory! I'd forgotten about that despite being the one who ran
> > into it.
> >
> > Looks like that patch was just removed in 4.9.75-30 which I just
> > upgraded
> > this system to: http://cbs.centos.org/koji/buildinfo?buildID=21122
> > <http://cbs.centos.org/koji/buildinfo?buildID=21122>
> > Previously I was on 4.9.63-29 which does not have this problem, and does
> > have the ldisc patch. So I guess the question is for Johnny, why was it
> > removed?
> >
> > In the meantime, I'll revert the kernel and follow up if I see any
> > further
> > problems.
> >
> >
> > IIRC the patch has been removed from the spec file because it has been
> > merged upstream in 4.9.71.
>
> The IRC discussion I found in my log indicates that it was removed
> because it didn't apply cleanly due to changes when updating to 4.9.75,
> yet I don't think anyone independently validated that the changes made
> are equivalent to the patch that was removed. I was never able to
> reproduce this issue, so I didn't investigate it myself.
>
Sounds like the patch is still needed :)
Anyone up to re-porting it to 4.9.75+ ?
-- Pasi
> --
> Kevin Stange
> Chief Technology Officer
> Steadfast | Managed Infrastructure, Datacenter and Cloud Services
> 800 S Wells, Suite 190 | Chicago, IL 60607
> 312.602.2689 X203 | Fax: 312.602.2688
> kevin at steadfast.net | www.steadfast.net
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