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From: Ingo Molnar <mingo@elte.hu>
To: Gene Heskett <gene.heskett@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>, Chris Rankin <rankincj@yahoo.com>,
	linux-ide@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] 2.6.24 refuses to boot - ATA problem?
Date: Sun, 3 Feb 2008 06:58:07 +0100	[thread overview]
Message-ID: <20080203055807.GA25545@elte.hu> (raw)
In-Reply-To: <200802030011.34086.gene.heskett@gmail.com>


* Gene Heskett <gene.heskett@gmail.com> wrote:

> I believe its the same, but lemme paste it for sure, yes:
> [   26.339926] ENABLING IO-APIC IRQs
> [   26.340119] ..TIMER: vector=0x31 apic1=0 pin1=0 apic2=-1 pin2=-1
> [   26.350129] ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> [   26.350182] ...trying to set up timer (IRQ0) through the 8259A ...  failed.
> [   26.350185] ...trying to set up timer as Virtual Wire IRQ... failed.
> [   26.360186] ...trying to set up timer as ExtINT IRQ... works.
> 
> The third line is the only line that makes it to the screen during the 
> boot trace.
> 
> Now, what does this tell us?

the question would be:

 - if you remove the acpi_use_timer_override boot flag
 - and if you boot a kernel with this hack applied

=> do those weird PATA failures come back?

If the failues do _not_ come back then the problem is somehow 
affected/worked-around by the IO-APIC code that generates the above 4 
lines. If the failures are still the same then the above 4 lines are 
really just an uninteresting side-effect of the acpi_use_timer_override 
flag - and the real side-effects (that fixes PATA on your box) are to be 
found elsewhere.

Sadly, the latter variant is the expected answer.

	Ingo

  reply	other threads:[~2008-02-03  5:58 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <745427.71265.qm@web52907.mail.re2.yahoo.com>
2008-02-03  1:37 ` Jeff Garzik
2008-02-03  3:43   ` Gene Heskett
2008-02-03  4:44     ` Ingo Molnar
2008-02-03  4:50       ` Ingo Molnar
2008-02-03  5:11       ` Gene Heskett
2008-02-03  5:58         ` Ingo Molnar [this message]
2008-02-03  6:25           ` Gene Heskett
2008-02-04 19:13             ` Mark Lord
2008-02-05  4:44               ` Gene Heskett
2008-02-02 23:40 Chris Rankin
2008-02-03  0:38 ` Daniel Hazelton
2008-02-03 17:36   ` Jeff Garzik
2008-02-03 18:16     ` Daniel Hazelton

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