kvm-60 "-snapshot" or "-smp 2" option not worked on SMP linux guest OS

kvm-60 "-snapshot" or "-smp 2" option not worked on SMP linux guest OS

[Alexander R]

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Hello list!

See subj.
I tried boot installed guest Opensuse 10.3 and it stops booting when
"-snapshot" and "-smp 2" options are enabled. With "-snapshot" and "-smp 1"
this guest OS work fine.
With guest Win2000 this options work fine.

My system is:
CPU: Core2Duo E6400
RAM: 2GB
Host OS: Opensuse 10.3 with 2.6.24 kernel.org
KVM: v60
Guest OS: Opensuse 10.3 (from box)

qemu \
-name           "SUSE 10.3" \
-hda            ~user/qemu/suse10.3/vdisk.img \
-cdrom          ~user/d/OS/opensuse/openSUSE-10.3-GM-DVD-i386.iso \
-boot           c \
-m              512 \
-usb \
-usbdevice      tablet \
-localtime \
-net            nic \
-net            tap,vlan=0,ifname=tap5,script=/usr/local/kvm/bin/qemu-ifup \
-serial         file:/home/user/qemu/suse10.3/qemu.log \
-L              /usr/local/kvm/share/qemu \
-snapshot \
-smp            2

syslog messages:
Feb 10 14:09:07 lin kernel: SIPI to vcpu 1 vector 0x03
Feb 10 14:09:27 lin kernel: sw0: port 2(tap5) entering disabled state
Feb 10 14:09:27 lin kernel: device tap5 left promiscuous mode
Feb 10 14:09:27 lin kernel: sw0: port 2(tap5) entering disabled state
Feb 10 14:09:29 lin kernel: device tap5 entered promiscuous mode
Feb 10 14:09:29 lin kernel: sw0: port 2(tap5) entering learning state
Feb 10 14:09:29 lin kernel: sw0: topology change detected, propagating
Feb 10 14:09:29 lin kernel: sw0: port 2(tap5) entering forwarding state
Feb 10 14:09:29 lin kernel: SIPI to vcpu 1 vector 0x10
Feb 10 14:09:32 lin kernel: Ignoring de-assert INIT to vcpu 1
Feb 10 14:09:32 lin kernel: SIPI to vcpu 1 vector 0x03

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Re: kvm-60 "-snapshot" or "-smp 2" option not worked on SMP linux guest OS

[Anthony Liguori]

Alexander R wrote:
> Hello list!
>
> See subj.
> I tried boot installed guest Opensuse 10.3 and it stops booting when 
> "-snapshot" and "-smp 2" options are enabled. With "-snapshot" and 
> "-smp 1" this guest OS work fine.
> With guest Win2000 this options work fine.

I believe this issue is actually qcow2.  With a guest using virtio_blk, 
qemu will actually deadlock when using -smp 2/4 when using a qcow disk.  
I'm looking into it right now.

Regards,

Anthony Liguori

> My system is:
> CPU: Core2Duo E6400
> RAM: 2GB
> Host OS: Opensuse 10.3 with 2.6.24 kernel.org <http://kernel.org>
> KVM: v60
> Guest OS: Opensuse 10.3 (from box)
>
> qemu \
> -name           "SUSE 10.3" \
> -hda            ~user/qemu/suse10.3/vdisk.img \
> -cdrom          ~user/d/OS/opensuse/openSUSE-10.3-GM-DVD-i386.iso \
> -boot           c \
> -m              512 \
> -usb \
> -usbdevice      tablet \
> -localtime \
> -net            nic \
> -net            
> tap,vlan=0,ifname=tap5,script=/usr/local/kvm/bin/qemu-ifup \
> -serial         file:/home/user/qemu/suse10.3/qemu.log \
> -L              /usr/local/kvm/share/qemu \
> -snapshot \
> -smp            2
>
> syslog messages:
> Feb 10 14:09:07 lin kernel: SIPI to vcpu 1 vector 0x03
> Feb 10 14:09:27 lin kernel: sw0: port 2(tap5) entering disabled state
> Feb 10 14:09:27 lin kernel: device tap5 left promiscuous mode
> Feb 10 14:09:27 lin kernel: sw0: port 2(tap5) entering disabled state
> Feb 10 14:09:29 lin kernel: device tap5 entered promiscuous mode
> Feb 10 14:09:29 lin kernel: sw0: port 2(tap5) entering learning state
> Feb 10 14:09:29 lin kernel: sw0: topology change detected, propagating
> Feb 10 14:09:29 lin kernel: sw0: port 2(tap5) entering forwarding state
> Feb 10 14:09:29 lin kernel: SIPI to vcpu 1 vector 0x10
> Feb 10 14:09:32 lin kernel: Ignoring de-assert INIT to vcpu 1
> Feb 10 14:09:32 lin kernel: SIPI to vcpu 1 vector 0x03
> ------------------------------------------------------------------------
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
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>
> _______________________________________________
> kvm-devel mailing list
> kvm-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/kvm-devel
>   


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