kvm54 hang on amd3000

kvm54 hang on amd3000

[JiSheng Zhang]

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once start kvm, the host machine hang

cpu:AMD Athlon(tm) 64 Processor 3000+
kvm:kvm54
host kernel version:2.6.23
host kernel arch:i386
guest:linux 32bit 2.6.23
command to start kvm:qemu-system-x86_64 -hda linux.img
the problem does not appear with the -no-kvm switch

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Re: kvm54 hang on amd3000

[Dor Laor]

JiSheng Zhang wrote:
> once start kvm, the host machine hang
>
> cpu:AMD Athlon(tm) 64 Processor 3000+
> kvm:kvm54
> host kernel version:2.6.23
> host kernel arch:i386
> guest:linux 32bit 2.6.23
> command to start kvm:qemu-system-x86_64 -hda linux.img
> the problem does not appear with the -no-kvm switch
>
>
Can you send netconsole output?
Direction for setting up netconsole are provided in the kvm wiki.
Regards,
Dor

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Fwd: kvm54 hang on amd3000

[JiSheng Zhang]

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---------- Forwarded message ----------
From: JiSheng Zhang <jszhang3@gmail.com>
Date: 2007-11-30 下午2:15
Subject: Re: [kvm-devel] kvm54 hang on amd3000
To: dor.laor@qumranet.com

Hi Dor,

2007/11/30, Dor Laor <dor.laor@gmail.com>:
>
> JiSheng Zhang wrote:
> > once start kvm, the host machine hang
> >
> > cpu:AMD Athlon(tm) 64 Processor 3000+
> > kvm:kvm54
> > host kernel version:2.6.23
> > host kernel arch:i386
> > guest:linux 32bit 2.6.23
> > command to start kvm:qemu-system-x86_64 -hda linux.img
> > the problem does not appear with the -no-kvm switch
> >
> >
> Can you send netconsole output?
> Direction for setting up netconsole are provided in the kvm wiki.


I connected host pc with another box using serial console, and echo 8 >
/proc/sys/kernel/printk
when host pc hang there is no kernel message


Regards,
> Dor
>

Thanks,
JiSheng

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Re: kvm54 hang on amd3000

[Avi Kivity]

JiSheng Zhang wrote:
> once start kvm, the host machine hang
>
> cpu:AMD Athlon(tm) 64 Processor 3000+
> kvm:kvm54
> host kernel version:2.6.23
> host kernel arch:i386
> guest:linux 32bit 2.6.23
> command to start kvm:qemu-system-x86_64 -hda linux.img
> the problem does not appear with the -no-kvm switch
>
>

Are you certain you are using the modules from kvm-54, or the modules
from 2.6.23?  2.6.23 has a problem on AMD.

I will send patches for 2.6.23.10 shortly.


-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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Fwd: kvm54 hang on amd3000

[JiSheng Zhang]

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---------- Forwarded message ----------
From: JiSheng Zhang <jszhang3@gmail.com>
Date: 2007-12-1 上午10:54
Subject: Re: [kvm-devel] kvm54 hang on amd3000
To: Avi Kivity <avi@qumranet.com>

Hi Avi,

2007/11/30, Avi Kivity <avi@qumranet.com>:
>
> JiSheng Zhang wrote:
> > once start kvm, the host machine hang
> >
> > cpu:AMD Athlon(tm) 64 Processor 3000+
> > kvm:kvm54
> > host kernel version:2.6.23
> > host kernel arch:i386
> > guest:linux 32bit 2.6.23
> > command to start kvm:qemu-system-x86_64 -hda linux.img
> > the problem does not appear with the -no-kvm switch
> >
> >
>
> Are you certain you are using the modules from kvm-54, or the modules
> from 2.6.23?  2.6.23 has a problem on AMD.
>
> I will send patches for 2.6.23.10 shortly.


Got it, the reason is that I used the modules from current stable mainline
kernel 2.6.23.9. ^_^.
Thanks,
JiSheng

--
> Do not meddle in the internals of kernels, for they are subtle and quick
> to panic.
>
>

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