On 22/02/2017 02:52, Xiong Zhou wrote: > Hi, > > Starting a guest begin to crash kernel on 0221 -next tree. > > It's fine on 0220 tree. Can you try commits a26d553400b30b6e0389f5c723c0fc6f7ea473da (0221) and b95234c840045b7c72380fd14c59416af28fcb02 (0220)? What is the guest and the QEMU command line? Paolo