Re: ACPI Regression on Dell E1501

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Tim Gardner <tim.gardner@xxxxxxxxxxxxx> writes:

> Thomas Renninger wrote:
>> On Fri, 2007-06-22 at 07:18 -0600, Tim Gardner wrote:
>>> Tim Gardner wrote:
>>>> Thomas Gleixner wrote:
>>>>> On Thu, 2007-06-21 at 17:47 -0400, Chuck Ebbert wrote:
>>>>>> On 06/21/2007 05:04 PM, Tim Gardner wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> Commit e9e2cdb412412326c4827fc78ba27f410d837e6e breaks boot on a Dell
>>>>>>> E1501 unless 'acpi=off' is specified (also tried nolapic and nohpet but
>>>>>>> it made no substantive difference). This laptop is an 'AMD Turion(tm) 64
>>>>>>> X2 Mobile Technology TL-50' CPU, but its booting 32 bit SMP (make
>>>>>>> defconfig). No kernel built after this commit works for this platform.
>>>>>>>
>>>>>>> There is no crash output, it just wedges after 'NET: Registered protocol
>>>>>>> family 2'.
>>>>>>>
>>>>>>> How can I debug this problem?
>>>>>> That'll be fun.
>>>>>>
>>>>>> That's:
>>>>>>
>>>>>> 	[PATCH] clockevents: i386 drivers
>>>>>>
>>>>>> [Author cc: added]
>>>>> I'm going nuts on this. 
>>>>>
>>>>> Tim, 
>>>>>
>>>>> 1.) are you booting a 32bit or a 64 bit kernel ?
>>>>>
>>>>> 2.) Can you please try 2.6.22-rc5 + 
>>>>> http://www.tglx.de/projects/hrtimers/2.6.22-rc5/patch-2.6.22-rc5-hrt1.patch
>>>>> 	whether this makes any difference 
>>>>>
>>>>> Thanks,
>>>>>
>>>>> 	tglx
>>>>>
>>>> Thomas,
>>>>
>>>> Your patch (large though it is) did not make any outward difference. As
>>>> usual, adding 'acpi=off' allows it to boot.
>>>>
>>>> rtg
>>> Perhaps I was too hasty. Adding 'acpi=off' did not allow it to boot. The
>>> IDE drive was detected, but I did not see any partitions detected.
>>> Eventually it dropped to the initrd shell when it could not find a root
>>> filesystem. Anyways, this is likely a side issue.
>> 
>> I am seeing the same with an ACER F5000.
>> 
>> pci=nomsi let the machine still boot.
>> 
>> I tried a bit and I think I got it, for me it's this one:
>> 
>> commit 78b7611c4a1e3ff008abc4751b566cb533d68f3d
>> Author: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
>> Date:   Fri Jun 1 00:46:33 2007 -0700
>> 
>> My problem: The laptop does not have an serial output device, I try to
>> set up a fire wire console, but might have cable/HW problems.
>> 
>> What else can I do to help?
>> What do you need?
>> 
>> Thanks,
>> 
>>    Thomas
>> 
>
> pci=nomsi has no effect, nor does CONFIG_SMP. Furthermore, I positively
> confirmed that this is the offending commit. If I reset HEAD to the
> commit just prior, then everything works OK.

To confirm you commit: e9e2cdb412412326c4827fc78ba27f410d837e6e 
"[PATCH] clockevents: i386 drivers" is the problem commit you are
referring to.  Thomas suggested a different commit else having to do
with MSI...

I'm just trying to keep the conversation straight.

Thanks,
Eric

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