From: Peter Zijlstra <peterz@infradead.org>
To: Will Deacon <will.deacon@arm.com>
Cc: "fweisbec@gmail.com" <fweisbec@gmail.com>,
"mingo@kernel.org" <mingo@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] perf: arch_perf_out_copy_user default
Date: Wed, 30 Oct 2013 20:35:38 +0100 [thread overview]
Message-ID: <20131030193538.GQ16117@laptop.programming.kicks-ass.net> (raw)
In-Reply-To: <20131030192927.GB27625@mudshark.cambridge.arm.com>
On Wed, Oct 30, 2013 at 07:29:27PM +0000, Will Deacon wrote:
> Yeah, that's weird, because they *do* appear to work! In fact, looking at
> the code in kernel/events/core.c, it looks like __output_copy_user is
> expected to return the number of bytes not copied,
Oh, cute, double fail.. head hurts.
next prev parent reply other threads:[~2013-10-30 19:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-30 14:37 [BUG] perf: arch_perf_out_copy_user default Peter Zijlstra
2013-10-30 18:44 ` [PATCH] perf: Fix arch_perf_out_copy_user default implementation Peter Zijlstra
2013-10-30 19:29 ` [BUG] perf: arch_perf_out_copy_user default Will Deacon
2013-10-30 19:35 ` Peter Zijlstra [this message]
2013-10-30 19:50 ` Frederic Weisbecker
2013-10-30 20:16 ` Peter Zijlstra
2013-10-30 20:47 ` Frederic Weisbecker
2013-10-30 22:31 ` Will Deacon
2013-11-06 13:19 ` [tip:perf/core] perf: Fix " tip-bot for Peter Zijlstra
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