no quit on halt for linux 2.6.23 x86 guest

no quit on halt for linux 2.6.23 x86 guest

[Denys Duchier]

qemu doesn't quit (no poweroff?) on halt for linux 2.6.23 x86 guests (confirmed
by danieldg on irc), but it works for 64bit guests and it works for linux 2.6.22
x86 guests. I tried kvm-45 and kvm-49. -no-kvm does not help.

Cheers,

--Denys


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Re: no quit on halt for linux 2.6.23 x86 guest

[Luca Tettamanti]

On 10/29/07, Denys Duchier <denys.duchier-7Gpg/I2gjxJXke3fktIsHg@public.gmane.org> wrote:
> qemu doesn't quit (no poweroff?) on halt for linux 2.6.23 x86 guests (confirmed
> by danieldg on irc), but it works for 64bit guests and it works for linux 2.6.22
> x86 guests. I tried kvm-45 and kvm-49. -no-kvm does not help.

Try acpi=force on the kernel command line (guest). QEmu doesn't expose
a DMI block and Linux guests usually don't enable ACPI since they're
unable to check BIOS year (all BIOSes shipped before 2001 are
blacklisted because they tend to be very broken).

Luca

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Re: no quit on halt for linux 2.6.23 x86 guest

[Denys Duchier]

"Luca Tettamanti" <kronos.it-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> Try acpi=force on the kernel command line (guest). QEmu doesn't expose
> a DMI block and Linux guests usually don't enable ACPI since they're
> unable to check BIOS year (all BIOSes shipped before 2001 are
> blacklisted because they tend to be very broken).

drat! thanks!  indeed disabling the check in the kernel works and that's what I
had done with 2.6.22, but I had completely forgotten about it in the mean time.
sorry about the noise :-(

Cheers,

--Denys


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Re: no quit on halt for linux 2.6.23 x86 guest

[Anthony Liguori]

Luca Tettamanti wrote:
> On 10/29/07, Denys Duchier <denys.duchier-7Gpg/I2gjxJXke3fktIsHg@public.gmane.org> wrote:
>   
>> qemu doesn't quit (no poweroff?) on halt for linux 2.6.23 x86 guests (confirmed
>> by danieldg on irc), but it works for 64bit guests and it works for linux 2.6.22
>> x86 guests. I tried kvm-45 and kvm-49. -no-kvm does not help.
>>     
>
> Try acpi=force on the kernel command line (guest). QEmu doesn't expose
> a DMI block and Linux guests usually don't enable ACPI since they're
> unable to check BIOS year (all BIOSes shipped before 2001 are
> blacklisted because they tend to be very broken).
>   

This would require CONFIG_ACPI_BLACKLIST_YEAR=2001.  In my kernel 
config, it's set to 0 and my guests still don't shut off so I think 
there's more to it than just this.

Regards,

Anthony Liguori

> Luca
>
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> _______________________________________________
> kvm-devel mailing list
> kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> https://lists.sourceforge.net/lists/listinfo/kvm-devel
>
>   


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Re: no quit on halt for linux 2.6.23 x86 guest

[Anthony Liguori]

Anthony Liguori wrote:
> Luca Tettamanti wrote:
>> On 10/29/07, Denys Duchier <denys.duchier-7Gpg/I2gjxJXke3fktIsHg@public.gmane.org> wrote:
>>  
>>> qemu doesn't quit (no poweroff?) on halt for linux 2.6.23 x86 guests 
>>> (confirmed
>>> by danieldg on irc), but it works for 64bit guests and it works for 
>>> linux 2.6.22
>>> x86 guests. I tried kvm-45 and kvm-49. -no-kvm does not help.
>>>     
>>
>> Try acpi=force on the kernel command line (guest). QEmu doesn't expose
>> a DMI block and Linux guests usually don't enable ACPI since they're
>> unable to check BIOS year (all BIOSes shipped before 2001 are
>> blacklisted because they tend to be very broken).
>>   
>
> This would require CONFIG_ACPI_BLACKLIST_YEAR=2001.  In my kernel 
> config, it's set to 0 and my guests still don't shut off so I think 
> there's more to it than just this.

Nevermind, I was looking at an x86_64 config.

Regards,

Anthony Liguori

> Regards,
>
> Anthony Liguori
>
>> Luca
>>
>> ------------------------------------------------------------------------- 
>>
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>> kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>> https://lists.sourceforge.net/lists/listinfo/kvm-devel
>>
>>   
>
>


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Re: no quit on halt for linux 2.6.23 x86 guest

[Denys Duchier]

Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org> writes:

>> This would require CONFIG_ACPI_BLACKLIST_YEAR=2001.  In my kernel 
>> config, it's set to 0 and my guests still don't shut off so I think 
>> there's more to it than just this.
>
> Nevermind, I was looking at an x86_64 config.

that's odd, because it works for me and it reportedly works also for danieldg.

Cheers,

--Denys


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Re: no quit on halt for linux 2.6.23 x86 guest

[Avi Kivity]

Luca Tettamanti wrote:
> On 10/29/07, Denys Duchier <denys.duchier-7Gpg/I2gjxJXke3fktIsHg@public.gmane.org> wrote:
>   
>> qemu doesn't quit (no poweroff?) on halt for linux 2.6.23 x86 guests (confirmed
>> by danieldg on irc), but it works for 64bit guests and it works for linux 2.6.22
>> x86 guests. I tried kvm-45 and kvm-49. -no-kvm does not help.
>>     
>
> Try acpi=force on the kernel command line (guest). QEmu doesn't expose
> a DMI block and Linux guests usually don't enable ACPI since they're
> unable to check BIOS year (all BIOSes shipped before 2001 are
> blacklisted because they tend to be very broken).
>   

I think Xen have a dmi block that fixes this.  If someone wants to 
borrow it for kvm, you know where to send patches...

-- 
Any sufficiently difficult bug is indistinguishable from a feature.


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