On 21.11.2011, at 10:12, Christian Borntraeger wrote: > The add_del/running_cpu code and env->halted are tracking stopped cpus. > Sleeping cpus (idle and enabled for interrupts) are waiting inside the > kernel. > No interrupt besides the restart can move a cpu from stopped to > operational. This is already handled over there. So lets just remove > the bogus wakup from the common interrupt delivery, otherwise any > interrupt will wake up a cpu, even if this cpu is stopped (Thus leading > to strange hangs on sigp restart) > > This fixes > echo 0 > /sys/devices/system/cpu/cpu0/online > echo 1 > /sys/devices/system/cpu/cpu0/online > in the guest > > Signed-off-by: Christian Borntraeger<borntrae...@de.ibm.com>
Thanks, applied to s390-next Alex
