I've installed Tumbleweed from
openSUSE-Tumleweed-NET-i586-Snapshot20150821-Media.iso into KVM with 4CPUs and
2G RAM.

The machine fails to boot after the installation and the log is filled with:

BUG: scheduling while atomic: swapper/1/0/0x00000145

with the last number increasing by one in each call.

sometimes it's interleaved with:

rcu_preempt self-deteceted stall on CPU { 1}
rcu_preempt kthread starved for 60002 jiffies!


Kernel version is 4.1.6-1-desktop and it boots fine when I reduce the number of
CPUs to 1.