Re: [PATCH 4.9 033/120] perf/x86/intel/uncore: Fix hardcoded socket 0 assumption in the Haswell init code

From: Ingo Molnar
Date: Thu Jan 19 2017 - 08:45:32 EST



* Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:

> On Thu, Jan 19, 2017 at 05:32:46AM -0500, Prarit Bhargava wrote:
> >
> >
> > On 01/18/2017 05:25 PM, Ingo Molnar wrote:
> > >
> > > * Prarit Bhargava <prarit@xxxxxxxxxx> wrote:
> > >
> > >> 4.9 is broken and requires additional patches beyond this patch. Applying this
> > >> patch to 4.9 stable without those additional fixes will result in kernel panics
> > >> on some Haswell systems that boot on random cores.
> > >
> > > Could you list the patches that are required? It would be nice to backport all
> > > required fixes to v4.9.
> > >
> >
> > Yeah, I'm going to do that once I get the system back. I have a feeling that
> > just the two additional patches are required but I want to make sure before I
> > post anything.
>
> So what do I do here? Drop this single patch? Add others now? Ignore
> it and leave it as-is?
>
> still confused,

Please drop the patch for now - we'll sort it all out and will send you a list of
commit IDs to backport once everything's clear!

Thanks,

Ingo