linux-kernel - Re: Problem activating multiple cores ONLY if I press any key before kernel is loaded

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Message-ID: <20080528183510.GA10543@redhat.com>
Date:	Wed, 28 May 2008 14:35:10 -0400
From:	Dave Jones <davej@...hat.com>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	S K <nospamnoham@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: Problem activating multiple cores ONLY if I press any key
	before kernel is loaded

On Mon, May 26, 2008 at 10:06:44AM +0200, Jiri Slaby wrote:
 > On 05/26/2008 05:39 AM, S K wrote:
 > > and Fedora 9 with kernel 2.6.25.3-18.fc9.i686.
 > [...]
 > > I see this in dmesg:
 > > CPU 1 irqstacks, hard=c07ba000 soft=c079a000
 > > Not responding.
 > > Inquiring remote APIC #1...
 > > ... APIC #1 ID: failed
 > > ... APIC #1 VERSION: failed
 > > ... APIC #1 SPIV: failed
 > > CPU #1 not responding - cannot use it.
 > > Booting processor 1/2 ip 4000
 > > Not responding.
 > > Inquiring remote APIC #2...
 > > ... APIC #2 ID: failed
 > > ... APIC #2 VERSION: failed
 > > ... APIC #2 SPIV: failed
 > > CPU #2 not responding - cannot use it.
 > > Booting processor 1/3 ip 4000
 > > Not responding.
 > > Inquiring remote APIC #3...
 > > ... APIC #3 ID: failed
 > > ... APIC #3 VERSION: failed
 > > ... APIC #3 SPIV: failed
 > > CPU #3 not responding - cannot use it.
 > > Total of 1 processors activated (5015.39 BogoMIPS).
 > > ENABLING IO-APIC IRQs
 > > ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
 > > Brought up 1 CPUs
 > 
 > Does it work with vanilla? If yes, contact your kernel provider (redhat bugzilla).

Incredibly high chance that the answer is yes.
I don't recall any patches that could affect this, and in honesty filing
this at rh bugzilla is going to make me scratch my head, and then
ask people here like tglx & ingo to take a look, so other than for tracking
purposes, it's not likely to improve chances of it getting fixed.

	Dave

-- 
http://www.codemonkey.org.uk
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