From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [BUG] sched: tip/master show soft lockup while running multiple
 VM
Date: Wed, 22 Jan 2014 13:36:43 +0100
Message-ID: <20140122123643.GO31570@twins.programming.kicks-ass.net>
References: <52DF8101.6020903@linux.vnet.ibm.com>
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Cc: Ingo Molnar <mingo@redhat.com>, Gleb Natapov <gleb@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Fengguang Wu <fengguang.wu@intel.com>, kvm@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
To: Michael wang <wangyun@linux.vnet.ibm.com>
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On Wed, Jan 22, 2014 at 04:27:45PM +0800, Michael wang wrote:
> # CONFIG_PREEMPT_NONE is not set
> CONFIG_PREEMPT_VOLUNTARY=y
> # CONFIG_PREEMPT is not set

Could you try the patch here:

  lkml.kernel.org/r/20140122102435.GH31570@twins.programming.kicks-ass.net

I suspect its the same issue.