linux-kernel - Re: [PATCH] perf, x86: Optimize intel_pmu_pebs_fixup

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Message-ID: <20131017145131.GP10651@twins.programming.kicks-ass.net>
Date:	Thu, 17 Oct 2013 16:51:31 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Don Zickus <dzickus@...hat.com>
Cc:	dave.hansen@...ux.intel.com, eranian@...gle.com,
	ak@...ux.intel.com, jmario@...hat.com,
	linux-kernel@...r.kernel.org, acme@...radead.org, mingo@...nel.org
Subject: Re: [PATCH] perf, x86: Optimize intel_pmu_pebs_fixup_ip()

On Thu, Oct 17, 2013 at 10:49:13AM -0400, Don Zickus wrote:
> For some reason this patch is page faulting at an invalid address inside
> __intel_pmu_pebs_event().

Ah yes, I lost a refresh, but read on; I've send a gazillion new emails
since ;-)

I think it was something like: s/this_cpu_ptr/this_cpu_read/ to make it
work again.
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