From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: Continuous reboots on qemu-kvm master
Date: Mon, 23 Jan 2012 16:41:06 -0200
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To: erik.rull@rdsoftware.de
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On Mon, Jan 23, 2012 at 05:12:07PM +0100, erik.rull@rdsoftware.de wrote:
> Hi all,
> 
> I get continuous reboots on my guest system, including these dmesg entries:
> 
> [   31.770538] device tap0 entered promiscuous mode
> [   31.770554] br0: port 2(tap0) entering learning state
> [   39.259921] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 4000000080532d74
> [   39.259936] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 0
> [   39.259946] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 0
> [   44.870691] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 4000000080532d74
> [   44.870801] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 0
> [   44.870901] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 0
> [   46.727081] br0: port 2(tap0) entering forwarding state
> [   50.481469] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 4000000080532d74
> [   50.481583] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 0
> [   50.481685] kvm: 1517: cpu0 unhandled wrmsr: 0x0 data 0
> [   55.827950] br0: port 2(tap0) entering disabled state
> [   55.828110] device tap0 left promiscuous mode
> [   55.828200] br0: port 2(tap0) entering disabled state
> 
> 
> My ./configure is:
>  ./configure --prefix= --target-list=x86_64-softmmu --disable-vnc-png
> --disable-vnc-jpeg --disable-vnc-tls --disable-vnc-sasl --audio-card-list=
> --audio-drv-list= --enable-sdl --disable-xen --disable-brlapi
> --disable-bluez --disable-nptl --disable-curl --disable-guest-agent
> --disable-guest-base --disable-werror --disable-attr
> 
> My qemu cmdline is:
> /usr/X11R6/bin/qemu-system-x86_64 -serial /dev/ttyS2 -readconfig
> /etc/ich9-ehci-uhci.cfg -device usb-host,bus=ehci.0 -device usb-tablet
> -drive file=/dev/sda2,cache=off -m 1536 -net nic -net
> tap,script=/etc/qemu-ifup -no-acpi -monitor stdio -L /usr/X11R6/share/qemu
> -boot c -localtime -enable-kvm
> 
> Was fine with qemu-kvm-1.0 and the same options!
> 
> Best regards,
> 
> Erik

Erik, 

Can you bisect to find the culprit, please?