[Kernel-packages] [Bug 1524069] Re: Xenial KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel exception

I just tried again with two logical CPUs and the core set to "Westmere" (I think that was the default), and didn't see the bug. So this seems related specifically to "[x] Copy host CPU configuration" being checked. Here's the /proc/cpuinfo from the "virtual Westmere" where it works:

[Kernel-packages] [Bug 1524069] Re: Xenial KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel exception

** Changed in: linux (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1524069 Title: Xenial KVM: updating Trusty guest from 3.13.0-68 to

[Kernel-packages] [Bug 1524069] Re: Xenial KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel exception

Also, the hypervisor's /proc/cpuinfo reports the following CPU configuration (8 cores of the same): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 60 model name : Intel(R) Core(TM) i7-4710MQ CPU @ 2.50GHz stepping: 3 microcode : 0x1e

[Kernel-packages] [Bug 1524069] Re: Xenial KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel exception

For what it's worth, unchecking "[ ] Copy host CPU configuration" in virt-manager and selecting "Hypervisor default" for the CPU is a workaround. (/proc/cpuinfo reports "QEMU Virtual CPU version 2.4.0") -- You received this bug notification because you are a member of Kernel Packages, which is

[Kernel-packages] [Bug 1524069] Re: Xenial KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel exception

** Tags added: kernel-key -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1524069 Title: Xenial KVM: updating Trusty guest from 3.13.0-68 to 3.13.0-71 causes kernel exception Status