Zhao Yakui 写道:
> On Mon, 2008-04-21 at 12:45 +0800, majie wrote:
>> Zhao Yakui wrote:
>>> On Thu, 2008-04-17 at 14:03 +0800, majie wrote:
>>>> Zhao Yakui wrote:
>>>>> On Tue, 2008-04-15 at 22:09 +0800, majie wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> I'm using Linux kernel 2.6.21.5-smp(Slackware 12). I experience an
>>>>>> error when I turn off my computer. It doesn't turn off itself (maybe
>>>>>> called going into G2/S5 Soft Off in the specification) after printing
>>>>>> a message "acpi_power_off called". I have to press the power button
>>>>>> for several seconds to turn it off. I think the CPUs may be running in
>>>>>> full speed because I hear my fan running in high speed.
>>>>>>
>>>>>> I tried to find out the problem by adding some printk()'s to the
>>>>>> function acpi_enter_sleep_state()(in
>>>>>> linux-2.6.21.5\drivers\acpi\hardware\hwsleep.c). And It shows that it
>>>>>> runs into the final do-while loop in the function and doing an
>>>>>> infinite loop. Maybe this is why my CPUs are running in full speed.
>>>>>>
>>>>>> I don't have the ability to debug the kernel. So this is the only
>>>>>> information I can provide about the code. If you want me to post my
>>>>>> hardware spec or anything else, I'm very glad to, but please tell me
>>>>>> which command and arguments should I use to get the info.
>>>>>>
>>>>>> I have tried the kernel options, but they don't work for me. My laptop
>>>>>> can shut down flawlessly when using windows xp.
>>>>>>
>>>>>> By the way, It's a linux distribution independent problem because I
>>>>>> also experienced it in kubuntu 7.10.
>>>>> Will you please attach the output of acpidump?
>>>>> The latest dump tool (20070116) can be found in 
>>>>> http://www.kernel.org/pub/linux/kernel/people/lenb/acpi/utils/
>>>>>
>>> Will you please try the latest kernel(2.6.25-rc9) and see whether the
>>> problem still exists? 
>>> Note: 
>>> a. ACPI should be enabled in kernel configuration.
>>> b. Don't use the custom DSDT
>>> c. use "poweroff" command to shutdown
>>>
>>> If the problem still exists, please attach the output of dmesg.
>>> thanks.
>>>       
>> Hi Yakui,
>> Do you receive my email I sent to you on April 19 ? I'm still unable to 
>> have the 2.6.25-rc9 kernel boot and run. I can't make a valid initrd to 
>> boot the kernel. I've spend the whole weekend to solve the problem. But 
>> I've no idea why it can mount my real root filesystem.
> 
> Sorry for the no response.
> IMO the problem is related to the kernel config. For example: the SATA
> driver should be built into kernel. (If not, OS can't find the root
> filesystem).
> Please do it again as listed in the following:(Pay attention to the
> kernel configuration).
> a. make bzImage; make modules;
> b. make modules_install; make install;
Hi, Yakui

2.6.25-rc9 kernel successfully runs on my computer. But the bad news is 
that this kernel can't shut down my computer too. Can you fix this 
problem in a newer kernel? Thanks.

And my dmesg output is here.

------------
  Regards,
  	majie