Host kernel crash at pci_find_upstream_pcie_bridge on VM exit

2013-03-19 Thread Ganesh Narayanaswamy
Hi, I am running qemu with kvm and VT-d enabled and a couple of PCI devices assigned to the guest VM. Both host and guest are running linux 2.6 kernel. The passthrough works fine, but when I exit the VM, the host kernel crashes with the following backtrace: <4>[ 5569.836893] Process qemu-sys

Re: Host kernel crash at pci_find_upstream_pcie_bridge on VM exit

2013-03-19 Thread Ganesh Narayanaswamy
the lspci -tv output, each of the PCI device being passed through is connected to one of the downstream ports of the PLX PCI bridge. Thanks, Ganesh On Mar 19, 2013, at 3:28 PM, Alex Williamson wrote: > On Tue, 2013-03-19 at 13:30 -0700, Ganesh Narayanaswamy wrote: >> Hi, >> >&

Re: Host kernel crash at pci_find_upstream_pcie_bridge on VM exit

2013-03-21 Thread Ganesh Narayanaswamy
KVM expect the downstream ports of the PCIe switch also expected to be passed through ? Thanks, Ganesh On Mar 20, 2013, at 7:41 PM, Alex Williamson wrote: > On Tue, 2013-03-19 at 17:09 -0700, Ganesh Narayanaswamy wrote: >> Hi Alex, >> >> Thanks for your reply. The pci de