linux-kernel - Re: [tip:x86/urgent] x86, apic: Fix apic=debug boot crash

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Message-ID: <9cca0990-1b78-40e7-a71d-f550b4f504aa@email.android.com>
Date:	Mon, 23 Aug 2010 07:54:34 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Daniel Kiper <dkiper@...-space.pl>, Yinghai Lu <yinghai@...nel.org>
CC:	mingo@...hat.com, linux-kernel@...r.kernel.org, tglx@...utronix.de,
	mingo@...e.hu, linux-tip-commits@...r.kernel.org
Subject: Re: [tip:x86/urgent] x86, apic: Fix apic=debug boot crash

It's already applied.

"Daniel Kiper" <dkiper@...-space.pl> wrote:

>Hi,
>
>On Fri, Aug 20, 2010 at 12:24:20PM -0700, Yinghai Lu wrote:
>> On Fri, Aug 20, 2010 at 5:41 AM, tip-bot for Daniel Kiper
>> <dkiper@...-space.pl> wrote:
>> > Commit-ID: ?05e407603e527f9d808dd3866d3a17c2ce4dfcc5
>> > Gitweb: ? ? http://git.kernel.org/tip/05e407603e527f9d808dd3866d3a17c2ce4dfcc5
>> > Author: ? ? Daniel Kiper <dkiper@...-space.pl>
>> > AuthorDate: Fri, 20 Aug 2010 00:46:16 +0200
>> > Committer: ?Ingo Molnar <mingo@...e.hu>
>> > CommitDate: Fri, 20 Aug 2010 10:18:28 +0200
>> >
>> > x86, apic: Fix apic=debug boot crash
>> >
>> > Fix a boot crash when apic=debug is used and the APIC is
>> > not properly initialized.
>> >
>> > This issue appears during Xen Dom0 kernel boot but the
>> > fix is generic and the crash could occur on real hardware
>> > as well.
>>
>> Do you have any report on real hardware?
>> that could not happen on real hardware.
>
>Till now no, however I think it is good idea
>to apply this patch now. It is not worth to wait
>for another null pointer dereference.
>
>Daniel

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