linux-kernel - Re: Why do so many machines need "noapic"?

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Message-ID: <46E59716.6020404@redhat.com>
Date:	Mon, 10 Sep 2007 15:12:22 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Prakash Punnoor <prakash@...noor.de>
CC:	Andi Kleen <andi@...stfloor.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Why do so many machines need "noapic"?

On 09/08/2007 01:17 AM, Prakash Punnoor wrote:
> On the day of Friday 07 September 2007 Chuck Ebbert hast written:
>> On 09/06/2007 07:31 AM, Andi Kleen wrote:
>>> Chuck Ebbert <cebbert@...hat.com> writes:
>>>> Some systems lock up without the noapic option.
>>> Please find patterns: cpu type, chipsets, mainboard vendors etc.
>> This is the first one I've actually had in front of me:
>>
>>   HP TX1000 notebook
>>   Nvidia C51/MCP51 mobile chipset
> 
> Do you have a hpet? If not, have you tried using acpi_use_timer_override with 
> apic?

Yes, it has an hpet. And I tried every combination of options I could
think of.

But, even stranger, x86_64 works (only i386 fails.)
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