linux-kernel - Re: [PATCH 1/3] perf/x86/intel/bts: Fix confused ordering of PMU callbacks

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Message-ID: <CAB7JpEF=oLrbZYFE1jf=8Jx9qtvGyy+44bgnRPOHxYCG_hKsGQ@mail.gmail.com>
Date:   Sat, 27 Aug 2016 09:35:26 +0300
From:   Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:     Vince Weaver <vince@...ter.net>
Cc:     Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Ingo Molnar <mingo@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Stephane Eranian <eranian@...gle.com>,
        Arnaldo Carvalho de Melo <acme@...radead.org>
Subject: Re: [PATCH 1/3] perf/x86/intel/bts: Fix confused ordering of PMU callbacks

Yes, Will's patch notwithstanding, these patches fix the
warnings/oopses that you observed.

On 26 August 2016 at 23:49, Vince Weaver <vince@...ter.net> wrote:
> On Wed, 24 Aug 2016, Alexander Shishkin wrote:
>
>> Alexander Shishkin <alexander.shishkin@...ux.intel.com> writes:
>>
>> > Alexander Shishkin <alexander.shishkin@...ux.intel.com> writes:
>> >
>> >> Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
>> >
>> > Ok, this one is broken, please disregard.
>>
>> Vince, can you try the following (with the other two in this series)?
>>
>
> Sorry for the delay.  Not sure if testing was still needed (or if it was
> superceded by Will Deacon's patch) but I ran the fuzzer for a few hours
> with this patch and the other two applied and didn't see any of the NMI
> errors that I saw with the original patch.
>
> Vince