2008-10-16 08:21:38

by Frans Pop

[permalink] [raw]
Subject: Is Debug Store supposed to default to Y?

Both CONFIG_X86_DS and X86_PTRACE_BTS currently default to yes.
Is that intended?

The help text is a bit short on info to help users determine if they
really need/want these options. What will I be missing if I don't enable
them on a regular desktop system? What is their cost?

Cheers,
FJP


2008-10-16 08:34:40

by Metzger, Markus T

[permalink] [raw]
Subject: RE: Is Debug Store supposed to default to Y?

>-----Original Message-----
>From: Frans Pop [mailto:[email protected]]
>Sent: Donnerstag, 16. Oktober 2008 10:21


>Both CONFIG_X86_DS and X86_PTRACE_BTS currently default to yes.
>Is that intended?
>
>The help text is a bit short on info to help users determine if they
>really need/want these options. What will I be missing if I
>don't enable
>them on a regular desktop system? What is their cost?

I sent an rfc for an improved help text yesterday:
http://lkml.org/lkml/2008/10/15/192.
I hope this answeres your questions.

See also the discussion with Roland Dreier on the same topic:
http://lkml.org/lkml/2008/10/16/56
http://lkml.org/lkml/2008/10/16/61

regards,
markus.


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2008-10-16 13:23:28

by Frans Pop

[permalink] [raw]
Subject: Re: Is Debug Store supposed to default to Y?

On Thursday 16 October 2008, Metzger, Markus T wrote:
> I sent an rfc for an improved help text yesterday:
> http://lkml.org/lkml/2008/10/15/192.
> I hope this answeres your questions.

Yes, a lot clearer. Thanks. Sorry for missing that thread.

Cheers,
FJP