Re: [Qemu-devel] qemu 2.7.0 incompatible with host kernel < 3.19

2016-09-14 Thread Brian Rak
On 9/14/2016 12:35 AM, Michael S. Tsirkin wrote: On Tue, Sep 13, 2016 at 11:09:27PM +0200, Laszlo Ersek wrote: Hi, (CC Michael and Cornelia,) On 09/13/16 21:10, Brian Rak wrote: I have some KVM hosts that I just upgraded to qemu 2.7.0. When the host is running a kernel newer then 3.19,

Re: [Qemu-devel] qemu 2.7.0 incompatible with host kernel < 3.19

2016-09-13 Thread Michael S. Tsirkin
On Tue, Sep 13, 2016 at 11:09:27PM +0200, Laszlo Ersek wrote: > Hi, > > (CC Michael and Cornelia,) > > On 09/13/16 21:10, Brian Rak wrote: > > I have some KVM hosts that I just upgraded to qemu 2.7.0. When the host > > is running a kernel newer then 3.19, everything works fine. > > > > If the

Re: [Qemu-devel] qemu 2.7.0 incompatible with host kernel < 3.19

2016-09-13 Thread Laszlo Ersek
Hi, (CC Michael and Cornelia,) On 09/13/16 21:10, Brian Rak wrote: > I have some KVM hosts that I just upgraded to qemu 2.7.0. When the host > is running a kernel newer then 3.19, everything works fine. > > If the host is running on something lower then 3.19, some guests fail to > start. I

[Qemu-devel] qemu 2.7.0 incompatible with host kernel < 3.19

2016-09-13 Thread Brian Rak
I have some KVM hosts that I just upgraded to qemu 2.7.0. When the host is running a kernel newer then 3.19, everything works fine. If the host is running on something lower then 3.19, some guests fail to start. I noticed this on a Ubuntu 16.04 guest, it fails to find the virtio NIC, and