From: Len Brown <lenb@kernel.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: update mptable v7
Date: Thu, 19 Jun 2008 01:27:38 -0400 (EDT) [thread overview]
Message-ID: <alpine.LFD.1.10.0806190121210.3613@localhost.localdomain> (raw)
In-Reply-To: <m1mylim4e6.fsf@frodo.ebiederm.org>
> >>> > Is this an effort to boot an ACPI-mode kernel,
> >>> > and then kexec a non-ACPI kernel?
> >>>
> >>> Yes,
> >>
> >> Why is this feature needed?
> >> There are a number of ways that the resulting kernel may fail,
> >> all platform specific.
> >
> > other os still doesn't have update acpi irq routing support. but has
> > broken mptable.
>
> Which is at least in part a reason to go back to the BIOS manufacturer
> and get them to fix their table.
Who says it is broken?
> I can see a warning coming from the kernel if these two tables are inconsistent
> though.
Again, there may not *be* an MPS table, and if there is but the
interrupt links are programmable, the MPS table may have very little
in common with the state of the machine in ACPI mode.
I'm sorry, kexec continues to sound like science fiction to me.
I don't understand why scribbling on upstream Linux in the name
of science fiction makes any sense.
I just don't get it.
-Len
next prev parent reply other threads:[~2008-06-19 5:28 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200805041823.57198.yhlu.kernel@gmail.com>
2008-05-06 17:38 ` [PATCH] x86: update mptable Yinghai Lu
2008-05-06 17:41 ` [PATCH] x86: fixed mtrr change WP to WB Yinghai Lu
2008-05-06 17:48 ` H. Peter Anvin
2008-05-06 18:24 ` Yinghai Lu
2008-05-06 18:31 ` H. Peter Anvin
2008-05-06 18:34 ` Yinghai Lu
2008-05-06 18:43 ` H. Peter Anvin
2008-05-06 19:05 ` Yinghai Lu
2008-05-06 19:08 ` H. Peter Anvin
2008-05-06 19:15 ` Yinghai Lu
2008-05-07 7:48 ` [PATCH] x86: update mptable v2 Yinghai Lu
2008-05-17 2:32 ` [PATCH] x86: update mptable v3 Yinghai Lu
2008-05-19 15:46 ` Ingo Molnar
2008-05-19 19:35 ` [PATCH] x86: update mptable v4 Yinghai Lu
2008-05-19 19:52 ` [PATCH] x86: update mptable v5 Yinghai Lu
2008-05-25 23:00 ` [PATCH] x86: update mptable v6 Yinghai Lu
2008-06-01 20:17 ` [PATCH] x86: update mptable v7 Yinghai Lu
2008-06-09 2:53 ` [PATCH] x86: update mptable v7 - fix Yinghai Lu
2008-06-09 10:13 ` Ingo Molnar
2008-06-09 17:51 ` Yinghai Lu
2008-06-09 18:11 ` Maciej W. Rozycki
2008-06-09 19:09 ` Ingo Molnar
2008-06-09 19:38 ` Yinghai Lu
2008-06-09 19:46 ` H. Peter Anvin
2008-06-09 19:49 ` Maciej W. Rozycki
2008-06-18 21:32 ` [PATCH] x86: update mptable fix with no ioapic Yinghai Lu
2008-06-19 0:29 ` [PATCH] x86: update mptable fix with no ioapic v2 Yinghai Lu
2008-06-19 7:18 ` [PATCH] x86: let MPS support selectable Yinghai Lu
2008-06-19 12:13 ` Ingo Molnar
2008-06-19 12:49 ` Ingo Molnar
2008-06-19 15:10 ` Maciej W. Rozycki
2008-06-19 17:39 ` Yinghai Lu
2008-06-19 18:03 ` Len Brown
2008-06-19 18:48 ` Maciej W. Rozycki
2008-06-26 9:31 ` Ingo Molnar
[not found] ` <200806191213.10312.yhlu.kernel@gmail.com>
2008-06-19 19:15 ` [PATCH] x86: fix compiling when CONFIG_X86_MPPARSE is not set Yinghai Lu
2008-06-20 14:42 ` [PATCH] x86: check command line " Yinghai Lu
2008-06-20 15:01 ` Ingo Molnar
2008-06-20 15:04 ` Yinghai Lu
2008-06-20 15:36 ` Maciej W. Rozycki
2008-06-20 23:11 ` [PATCH] x86: check command line when CONFIG_X86_MPPARSE is not set v2 Yinghai Lu
2008-06-21 8:14 ` [PATCH] x86: clean up init_amd() Yinghai Lu
2008-06-24 12:12 ` [PATCH] x86: check command line when CONFIG_X86_MPPARSE is not set Pavel Machek
2008-06-26 8:23 ` Yinghai Lu
[not found] ` <200806200733.31477.yhlu.kernel@gmail.com>
2008-06-20 15:03 ` [PATCH] x86: simplify x86_mpparse dependency check Ingo Molnar
2008-06-20 15:31 ` Maciej W. Rozycki
2008-06-19 12:13 ` [PATCH] x86: update mptable fix with no ioapic v2 Ingo Molnar
2008-06-18 22:18 ` [PATCH] x86: update mptable v7 Len Brown
2008-06-18 22:32 ` Yinghai Lu
2008-06-19 0:33 ` Len Brown
2008-06-19 0:49 ` Yinghai Lu
2008-06-19 4:32 ` Eric W. Biederman
2008-06-19 5:09 ` H. Peter Anvin
2008-06-19 5:11 ` Yinghai Lu
2008-06-19 5:27 ` Len Brown [this message]
2008-06-19 6:37 ` Eric W. Biederman
2008-06-19 7:31 ` Yinghai Lu
2008-06-19 18:16 ` Len Brown
2008-06-20 6:47 ` Ingo Molnar
2008-06-20 7:20 ` Yinghai Lu
2008-06-20 9:12 ` Andi Kleen
2008-06-19 5:20 ` Len Brown
2008-06-19 6:26 ` Yinghai Lu
2008-06-19 6:28 ` H. Peter Anvin
2008-06-19 6:35 ` Yinghai Lu
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