Re: [Qemu-devel] call flow to hit get_pci_config_device() during live migration

2017-06-09 Thread Chris Friesen
On 06/09/2017 02:00 PM, Chris Friesen wrote: I think what I end up with is that byte 0x20 (ie 32) of the PCI config for the virtio-blk device is 0 in the data coming over the wire, and 0xC in the local copy. Since cmask is 0xff we need to check all the bits in the byte, and both wmask and w1cma

Re: [Qemu-devel] call flow to hit get_pci_config_device() during live migration

2017-06-09 Thread Chris Friesen
On 06/09/2017 09:42 AM, Chris Friesen wrote: Hi, I'm investigating an issue seen over a live migration from a modified qemu-kvm-ev-2.3.0-31.el7_2.7.1 to a modified qemu-kvm-ev-2.6.0-28.el7_3.9.1. We hit an issue down in get_pci_config_device() that caused the migration to fail. The qemu logs o

[Qemu-devel] call flow to hit get_pci_config_device() during live migration

2017-06-09 Thread Chris Friesen
Hi, I'm investigating an issue seen over a live migration from a modified qemu-kvm-ev-2.3.0-31.el7_2.7.1 to a modified qemu-kvm-ev-2.6.0-28.el7_3.9.1. We hit an issue down in get_pci_config_device() that caused the migration to fail. The qemu logs on the destination are included below. I'm