kvm errors when using greater than 3572m of memory

kvm errors when using greater than 3572m of memory

[Brian Almeida]

Hi,

I get the following error when I give -m 3752 or higher:

stormcrow:/data/kvm# kvm -no-acpi -m 3572 -cdrom
/data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
tharkun.img 
create_kernel_phys_mem: Invalid argumentset_vram_mapping: cannot
allocate memory: Invalid argument
NULL vram_pointer

If I do -m 3751 I get no error and it works:
stormcrow:/data/kvm# kvm -no-acpi -m 3571 -cdrom
/data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
tharkun.img 

If I go up a little bit higher, the message changes:
stormcrow:/data/kvm# kvm -no-acpi -m 3600 -cdrom
/data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
tharkun.img 
qemu: could not load PC BIOS '/usr/share/kvm/bios.bin'

shmmax is set to 4g:
stormcrow:/data/kvm# cat /proc/sys/kernel/shmmax 
4294967296

I'm using kvm 54 from Debian unstable on 2.6.22-3-amd64.  Any other
debugging info can be provided upon request.

Thanks,

Brian

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Re: kvm errors when using greater than 3572m of memory

[Izik Eidus]

Brian Almeida wrote:
> Hi,
>
> I get the following error when I give -m 3752 or higher:
>
> stormcrow:/data/kvm# kvm -no-acpi -m 3572 -cdrom
> /data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
> tharkun.img 
> create_kernel_phys_mem: Invalid argumentset_vram_mapping: cannot
> allocate memory: Invalid argument
> NULL vram_pointe
>   
great :),
for to be able to run with above 4giga at "safe" way right now you need 
kvm module above 46
is it possible that you use the module from the 2.6.22 kernel? and not 
the module from the kvm-54 package?

please tell me what happen if you run it with -m 4096
> If I do -m 3751 I get no error and it works:
> stormcrow:/data/kvm# kvm -no-acpi -m 3571 -cdrom
> /data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
> tharkun.img 
>
> If I go up a little bit higher, the message changes:
> stormcrow:/data/kvm# kvm -no-acpi -m 3600 -cdrom
> /data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
> tharkun.img 
> qemu: could not load PC BIOS '/usr/share/kvm/bios.bin'
>
> shmmax is set to 4g:
> stormcrow:/data/kvm# cat /proc/sys/kernel/shmmax 
> 4294967296
>
> I'm using kvm 54 from Debian unstable on 2.6.22-3-amd64.  Any other
> debugging info can be provided upon request.
>
> Thanks,
>
> Brian
>
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>   


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Re: kvm errors when using greater than 3572m of memory

[Izik Eidus]

Izik Eidus wrote:
> Brian Almeida wrote:
>> Hi,
>>
>> I get the following error when I give -m 3752 or higher:
>>
>> stormcrow:/data/kvm# kvm -no-acpi -m 3572 -cdrom
>> /data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
>> tharkun.img create_kernel_phys_mem: Invalid argumentset_vram_mapping: 
>> cannot
>> allocate memory: Invalid argument
>> NULL vram_pointe
> great :),
> for to be able to run with above 4giga at "safe" way right now you 
> need kvm module above 46
> is it possible that you use the module from the 2.6.22 kernel? and not 
> the module from the kvm-54 package?
>
> please tell me what happen if you run it with -m 4096
>> If I do -m 3751 I get no error and it works:
>> stormcrow:/data/kvm# kvm -no-acpi -m 3571 -cdrom
>> /data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
>> tharkun.img
>> If I go up a little bit higher, the message changes:
>> stormcrow:/data/kvm# kvm -no-acpi -m 3600 -cdrom
>> /data/iso/w2k3_server_ent_r2_disc1.iso -boot d -usbdevice tablet
>> tharkun.img qemu: could not load PC BIOS '/usr/share/kvm/bios.bin'
>>
>> shmmax is set to 4g:
>> stormcrow:/data/kvm# cat /proc/sys/kernel/shmmax 4294967296
>>
>> I'm using kvm 54 from Debian unstable on 2.6.22-3-amd64. Any other
>> debugging info can be provided upon request.
>>
>> Thanks,
>>
>> Brian
>>
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>> kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>> https://lists.sourceforge.net/lists/listinfo/kvm-devel
>
>
yea it does look like the reason is that you use old kvm module version,
i ran it on my box with 3572 mb of ram and it work

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Re: kvm errors when using greater than 3572m of memory

[Brian Almeida]

On Fri, Dec 07, 2007 at 09:14:37PM +0200, Izik Eidus wrote:
> yea it does look like the reason is that you use old kvm module version,
> i ran it on my box with 3572 mb of ram and it work

Ok - I will try with the latest version.  Thanks!

Brian

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Re: kvm errors when using greater than 3572m of memory

[Izik Eidus]

Brian Almeida wrote:
> On Fri, Dec 07, 2007 at 09:14:37PM +0200, Izik Eidus wrote:
>   
>> yea it does look like the reason is that you use old kvm module version,
>> i ran it on my box with 3572 mb of ram and it work
>>     
>
> Ok - I will try with the latest version.  Thanks!
>
> Brian
>   
(note that kvm-54 should be enough, you just have to make sure that you 
use the modules that come with it)

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Re: kvm errors when using greater than 3572m of memory

[Brian Almeida]

On Fri, Dec 07, 2007 at 09:28:42PM +0200, Izik Eidus wrote:
> (note that kvm-54 should be enough, you just have to make sure that you use 
> the modules that come with it)

Yes, this fixed the problem.

Any idea why the ACPI opitmization patches (tpr-opt-1) are slated to make
it in an upstream release so I can use SMP on windows guests?  Do
they work with kvm-5[45]?

Brian

-- 
Brian Almeida
http://thunderkeys.net

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Re: kvm errors when using greater than 3572m of memory

[Izik Eidus]

Brian Almeida wrote:
> On Fri, Dec 07, 2007 at 09:28:42PM +0200, Izik Eidus wrote:
>   
>> (note that kvm-54 should be enough, you just have to make sure that you use 
>> the modules that come with it)
>>     
>
> Yes, this fixed the problem.
>
> Any idea why the ACPI opitmization patches (tpr-opt-1) are slated to make
> it in an upstream release so I can use SMP on windows guests?  Do
> they work with kvm-5[45]?
>
> Brian
>
>   
there is a work right now to clean this patches so they can come to kvm 
upstream releases
i guess you will be able to see them in the very near future.
(btw, if i am not wrong, in 64bits windows guests it should be a problem 
to run with acpi)


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