Re: [rfc] hw resource debugging checks (was: Re: x86 git tree broken (bisected))

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To: Ingo Molnar <mingo@...>
Cc: Rafael J. Wysocki <rjw@...>, Yinghai Lu <yinghai.lu@...>, Andrew Morton <akpm@...>, LKML <linux-kernel@...>, Pavel Machek <pavel@...>, Thomas Gleixner <tglx@...>, H. Anvin <hpa@...>, Greg Kroah-Hartman <gregkh@...>
Date: Sunday, April 13, 2008 - 11:48 am

On Sun, 13 Apr 2008 09:58:45 +0200
Ingo Molnar <mingo@elte.hu> wrote:


that would be very welcome, esp if kerneloops.org can pick them up.

One thing we also need to do as Linux is get more conservative;
(this isn't per se about this specific thing)

With MCFG for example we learned over time "if it smells funny don't use it".
That concept should be carried much further imo; for example on K8 you
can compare the acpi table to the chipset for numa support, and if they don't match,
we SHOULD ignore both entirely.
The same is true all over; Linux tends to behave as "oh but we think we can make it work anyway",
in general imo that's a mistake in the long term, at least for default configs. Because there
will be cases where that will break, be it special bioses or next gens of chipsets.


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Messages in current thread:
x86 git tree broken, Rafael J. Wysocki, (Thu Apr 10, 3:59 pm)
Re: x86 git tree broken, Ingo Molnar, (Thu Apr 10, 4:51 pm)
Re: x86 git tree broken, Rafael J. Wysocki, (Thu Apr 10, 6:27 pm)
Re: x86 git tree broken, Ingo Molnar, (Fri Apr 11, 2:43 am)
Re: x86 git tree broken, Ingo Molnar, (Thu Apr 10, 4:13 pm)
Re: x86 git tree broken, Rafael J. Wysocki, (Thu Apr 10, 4:25 pm)
Re: x86 git tree broken, Ingo Molnar, (Thu Apr 10, 4:29 pm)
Re: x86 git tree broken, Ingo Molnar, (Thu Apr 10, 4:38 pm)
Re: x86 git tree broken, Rafael J. Wysocki, (Thu Apr 10, 6:28 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Fri Apr 11, 3:26 pm)
Re: [rfc] hw resource debugging checks (was: Re: x86 git tre..., Arjan van de Ven, (Sun Apr 13, 11:48 am)
Re: [rfc] hw resource debugging checks, Andi Kleen, (Sun Apr 13, 5:39 am)
Re: [rfc] hw resource debugging checks, Yinghai Lu, (Sun Apr 13, 2:19 pm)
Re: [rfc] hw resource debugging checks, Andi Kleen, (Sun Apr 13, 2:29 pm)
Re: [rfc] hw resource debugging checks, Yinghai Lu, (Sun Apr 13, 3:29 pm)
Re: [rfc] hw resource debugging checks, Arjan van de Ven, (Sun Apr 13, 11:52 pm)
Re: [rfc] hw resource debugging checks, Yinghai Lu, (Mon Apr 14, 1:01 am)
Re: [rfc] hw resource debugging checks, Arjan van de Ven, (Mon Apr 14, 10:12 am)
Re: [rfc] hw resource debugging checks, Yinghai Lu, (Mon Apr 14, 2:11 pm)
Re: [rfc] hw resource debugging checks, Arjan van de Ven, (Sun Apr 13, 1:53 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Fri Apr 11, 4:26 pm)
Re: x86 git tree broken (bisected), Ingo Molnar, (Sun Apr 13, 3:51 am)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 3:59 am)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Fri Apr 11, 4:51 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 4:24 am)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Sun Apr 13, 12:12 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 6:00 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Sun Apr 13, 6:10 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 6:32 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Sun Apr 13, 8:19 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 9:42 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Mon Apr 14, 4:21 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Mon Apr 14, 5:06 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Mon Apr 14, 5:09 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Mon Apr 14, 5:36 pm)
Re: x86 git tree broken (bisected), Ingo Molnar, (Mon Apr 14, 5:16 am)
Re: x86 git tree broken (bisected), Yinghai Lu, (Mon Apr 14, 2:08 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Sun Apr 13, 7:41 pm)
Re: x86 git tree broken (bisected), H. Peter Anvin, (Sun Apr 13, 7:45 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Sun Apr 13, 8:09 pm)
Re: x86 git tree broken (bisected), H. Peter Anvin, (Sun Apr 13, 8:12 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 2:07 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Sun Apr 13, 2:47 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 2:54 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 2:53 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Sun Apr 13, 4:41 am)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Sun Apr 13, 12:14 pm)
Re: x86 git tree broken (bisected), Ingo Molnar, (Mon Apr 14, 5:02 am)
Re: x86 git tree broken (bisected), Yinghai Lu, (Fri Apr 11, 5:11 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Fri Apr 11, 5:21 pm)
Re: x86 git tree broken (bisected), Yinghai Lu, (Fri Apr 11, 5:31 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Fri Apr 11, 4:23 pm)
Re: x86 git tree broken (bisected), Rafael J. Wysocki, (Fri Apr 11, 4:29 pm)