From: Roland Dreier <rdreier@cisco.com>
To: linux-kernel@vger.kernel.org,
Markus Metzger <markus.t.metzger@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Subject: X86_DS config option needs better help text
Date: Tue, 14 Oct 2008 11:19:28 -0700 [thread overview]
Message-ID: <adavdvvvy33.fsf@cisco.com> (raw)
Noticed while building a new kernel from latest git:
Debug Store support (X86_DS) [Y/n/?] (NEW) ?
and asking for help just gives
Add support for Debug Store.
This allows the kernel to provide a memory buffer to the hardware
to store various profiling and tracing events.
This doesn't really let me decide if I want it or not. Is there a cost
to enabling this, and if so what? What new feature does this give me?
Is there even a point to making this a user-visible option at all, or
should it just be an internal config variable selected by X86_PTRACE_BTS
and any future users of this?
X86_PTRACE_BTS also could use an improved help text.
No patch, sorry, since I don't actually know for sure what this does.
Thanks,
Roland
reply other threads:[~2008-10-14 18:19 UTC|newest]
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