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Message-ID: <1347448843.15764.3.camel@twins>
Subject: Re: [PATCH] perf: Introduce function to report unsupported syscall
 attribute flags
From: Peter Zijlstra <peterz@infradead.org>
To: Robert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@kernel.org>, Stephane Eranian <eranian@google.com>,
        LKML <linux-kernel@vger.kernel.org>
Date: Wed, 12 Sep 2012 13:20:43 +0200
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On Wed, 2012-09-12 at 13:01 +0200, Robert Richter wrote:
> +       if (notsup)
> +               pr_warn("perf: unsupported attribute flags: %016llx\n", notsup); 

This is a dmesg DoS..

I'm also not sure dmesg is the right way.. could we not somehow change
the attrs to provide better diagnostic?