Kees,

This script can reproduce the problem. Please modify the -initrd line
before use.

Usage:
        ./kvm-0day.sh vmlinuz-3.12.0-rc4-00008-g6e6a493

#!/bin/bash

kernel=$1

kvm=(
        qemu-system-x86_64 -cpu kvm64 -enable-kvm
        -kernel $kernel
        -initrd /kernel-tests/initrd/yocto-minimal-x86_64.cgz
        # -initrd /kernel-tests/initrd/yocto-minimal-i386.cgz
        # -initrd /kernel-tests/initrd/quantal-core-i386.cgz
        # -initrd /kernel-tests/initrd/quantal-core-x86_64.cgz
        -smp 2
        -m 256M
        -net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio
        -net user,vlan=0
        -net nic,vlan=1,model=e1000
        -net user,vlan=1
        -boot order=nc
        -no-reboot
        -watchdog i6300esb
        -serial stdio
        -display none
        -monitor null
)

append=(
        debug
        sched_debug
        apic=debug
        ignore_loglevel
        # dyndbg=\"func kobject_release +p\"
        sysrq_always_enabled
        panic=10
        prompt_ramdisk=0
        earlyprintk=ttyS0,115200
        console=ttyS0,115200
        console=tty0
        vga=normal
        root=/dev/ram0
        rw
)

"${kvm[@]}" --append "${append[*]}"
--
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