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From: ebiederm@xmission.com (Eric W. Biederman)
To: Zachary Amsden <zach@vmware.com>
Cc: Adrian Bunk <bunk@stusta.de>, Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org, rdunlap@xenotime.net,
	fastboot@osdl.org
Subject: Re: 2.6.17-rc1-mm1: KEXEC became SMP-only
Date: Tue, 04 Apr 2006 11:50:49 -0600	[thread overview]
Message-ID: <m1vetp44cm.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <4432AB57.1040006@vmware.com> (Zachary Amsden's message of "Tue, 04 Apr 2006 10:22:31 -0700")

Zachary Amsden <zach@vmware.com> writes:

> Adrian Bunk wrote:
>> On Tue, Apr 04, 2006 at 01:45:04AM -0700, Andrew Morton wrote:
>>
>>> ...
>>> Changes since 2.6.16-mm2:
>>> ...
>>> +x86-clean-up-subarch-definitions.patch
>>> ...
>>>  x86 updates.
>>> ...
>>>
>>
>> The following looks bogus:
>>
>>  config KEXEC
>>         bool "kexec system call (EXPERIMENTAL)"
>> -       depends on EXPERIMENTAL
>> +       depends on EXPERIMENTAL && (!X86_VOYAGER && SMP)
>>
>> The dependencies do now say that KEXEC is only offered for machines that are
>> _both_ non-Voyager and SMP.
>>
>> Is the problem you wanted to express that a non-SMP Voyager config didn't
>> compile?
>>
>
> Whoops, that should be
>
> depends on EXPERIMENTAL && !(X86_VOYAGER && SMP)
>
> Voyager SMP builds don't compile with kexec(), and it isn't clear how to
> shootdown CPUs using NMIs without an APIC.

Well unless you need the crash dump functionality you don't need to
shot down CPUs using NMIs.

So I expect machine_crash_shutdown or at least a part of it
should be a call into the subarchitecture code.  Having
it be a noop on voyager would be perfectly fine.  


Eric

  reply	other threads:[~2006-04-04 17:52 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-04  8:45 2.6.17-rc1-mm1 Andrew Morton
2006-04-04 14:31 ` 2.6.17-rc1-mm1 Kumar Gala
2006-04-04 16:02 ` 2.6.17-mm1: drivers/w1/: patch undoes reasonable cleanups Adrian Bunk
2006-04-04 16:35   ` Evgeniy Polyakov
2006-04-04 16:29 ` 2.6.17-rc1-mm1: KEXEC became SMP-only Adrian Bunk
2006-04-04 17:22   ` Zachary Amsden
2006-04-04 17:50     ` Eric W. Biederman [this message]
2006-04-06 22:37     ` Adrian Bunk
2006-04-04 17:43   ` Eric W. Biederman
2006-04-04 17:51     ` Zachary Amsden
2006-04-04 18:43       ` Eric W. Biederman
2006-04-04 19:23         ` Zachary Amsden
2006-04-04 19:38           ` Muli Ben-Yehuda
2006-04-04 20:25           ` Andrew Morton
2006-04-04 22:02             ` Zachary Amsden
2006-04-04 22:19               ` Andrew Morton
2006-04-04 22:34                 ` Zachary Amsden
2006-04-04 22:38                   ` Andrew Morton
2006-04-05  0:21                 ` Martin Bligh
2006-04-05  2:45                   ` Eric W. Biederman
2006-04-04 16:29 ` [-mm patch] i386: pre_intr_init_hook optimization Adrian Bunk
2006-04-04 17:16   ` Zachary Amsden
2006-04-04 16:29 ` 2.6.17-rc1-mm1: why did acpi_ns_build_external_path() become global? Adrian Bunk
2006-04-04 16:30 ` [-mm patch] drivers/media/video/bt866.c: small fixes Adrian Bunk
2006-04-04 18:32   ` Martin Samuelsson
2006-04-05  7:42     ` Andrew Morton
2006-04-05  9:02       ` Adrian Bunk
2006-04-05 13:44       ` Martin Samuelsson
2006-04-05  8:32     ` Johannes Stezenbach
2006-04-05 13:54       ` Martin Samuelsson
2006-04-04 16:30 ` [-mm patch] fs/nfsd/nfs4state.c: make a struct static Adrian Bunk
2006-04-04 16:50   ` [NFS] " J. Bruce Fields
2006-04-04 17:29     ` Adrian Bunk
2006-04-04 20:53 ` 2.6.17-rc1-mm1: mlockall() regression on x86_64 Rafael J. Wysocki
2006-04-04 22:24   ` Andrew Morton
2006-04-04 21:53 ` 2.6.17-rc1-mm1 Zan Lynx
2006-04-04 22:09   ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05  7:01     ` 2.6.17-rc1-mm1 Roger Luethi
2006-04-05  7:29       ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05 22:01         ` 2.6.17-rc1-mm1 Roger Luethi
2006-04-04 23:38 ` 2.6.17-rc1-mm1 Luck, Tony
2006-04-05  2:05   ` 2.6.17-rc1-mm1 Zou Nan hai
2006-04-05 16:15     ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-05 21:17       ` 2.6.17-rc1-mm1 Luck, Tony
2006-04-05 21:37         ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05 21:39         ` 2.6.17-rc1-mm1 Andreas Schwab
2006-04-05 22:01         ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-06  1:49           ` 2.6.17-rc1-mm1 Antonino A. Daplas
2006-04-06 10:21           ` 2.6.17-rc1-mm1 Russell King
2006-04-06 10:34             ` 2.6.17-rc1-mm1 Russell King
2006-04-06 14:55               ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-06 10:16         ` 2.6.17-rc1-mm1 Russell King
2006-04-05  2:27 ` 2.6.17-rc1-mm1, nfsd/reiser4 BUG Zan Lynx
2006-04-07 12:27 ` 2.6.17-rc1-mm1: drivers/acpi/numa.c compile error Adrian Bunk
2006-04-07 20:59   ` Andrew Morton
2006-04-09 15:44     ` Adrian Bunk
2006-04-09 15:57       ` Randy.Dunlap
2006-04-07 20:58 ` 2.6.17-rc1-mm1 - detects buggy TSC on GEODE Jim Cromie
2006-04-08  0:07   ` Andrew Morton
2006-04-08  0:25     ` john stultz
2006-04-08  1:15     ` Jim Cromie
2006-04-13  7:39 ` 2.6.17-rc1-mm1 Heiko Carstens
2006-04-13  8:13   ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-14 16:07     ` 2.6.17-rc1-mm1 Alasdair G Kergon

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