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Date: Thu, 19 Jan 2017 05:32:46 -0500
From: Prarit Bhargava <prarit@redhat.com>
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To: Ingo Molnar <mingo@kernel.org>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Borislav Petkov <bp@suse.de>, "H. Peter Anvin" <hpa@zytor.com>,
        Harish Chegondi <harish.chegondi@intel.com>,
        Jiri Olsa <jolsa@redhat.com>, Kan Liang <kan.liang@intel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Stephane Eranian <eranian@google.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Vince Weaver <vincent.weaver@maine.edu>
Subject: Re: [PATCH 4.9 033/120] perf/x86/intel/uncore: Fix hardcoded socket
 0 assumption in the Haswell init code
References: <20170118104648.120216880@linuxfoundation.org> <20170118104649.461809044@linuxfoundation.org> <587F7DCF.70800@redhat.com> <20170118163350.GA10804@kroah.com> <587F9E1E.4010903@redhat.com> <20170118222526.GB24486@gmail.com>
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On 01/18/2017 05:25 PM, Ingo Molnar wrote:
> 
> * Prarit Bhargava <prarit@redhat.com> 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.

P.

> Thanks,
> 
> 	Ingo
>