[Qemu-devel] s390 - Parts of console output lost

[Bastian Blank]

Hi

116348def2bb446d972bdc2f44bd77ff631f85de works on s390/kvm, but on startup
parts of the console output is lost. The used kernel is a standard Debian
distribution kernel.

| $ ./s390x-softmmu/qemu-system-s390x -nographic -enable-kvm -kernel 
/boot/vmlinuz-2.6.32-4-s390x -initrd /boot/initrd.img-2.6.32-4-s390x -append 
"break=premount"
| [    0.583078] cio: Channel measurement facility initialized using format 
basic (mode autodetected)
| [    0.585475] TCP cubic registered

Everything up to the first line is lost on the virtio console. This
could be also a kernel problem as this kernel includes two drivers
responsible for hvc, virtio and iucv. The last line in the kernel log
before the properly shown ones is:

| [    0.592667] hvc_iucv: The z/VM IUCV HVC device driver cannot be used 
without z/VM

Bastian

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