Hard lockups with VMs on 4.19

I am seeing a lot of hard lockups when I fire up a KVM (Windows 10 with VFIO), on 4.19.2 and 4.19.3 (tested from linux-stable). System is a Xeon E5-2667v2 on Supermicro X9SRA. Kernel command line: “consoleblank=0 intel_iommu=on rcu_nocbs=1-15 nohz_full=1-15 transparent_hugepage=never audit=0 pcie_

Hard lockups with VMs on 4.19

From: gamana...@gmail.com Sent: Thursday, November 22, 2018 7:48 PM To: pet...@infradead.org; linux-kernel@vger.kernel.org Subject: Hard lockups with VMs on 4.19 I am seeing a lot of hard lockups when I fire up a KVM (Windows 10 with VFIO), on 4.19.2 and 4.19.3 (tested from linux-stable). Sys