The bug has been fixed by the following commit:
commit df67696e97d3edd0cb1683bf2eb3b3236bd9a5ed
Author: Liu Jinsong <jinsong....@intel.com>
Date: Mon Aug 19 09:33:30 2013 +0800
kvm: x86: fix setting IA32_FEATURE_CONTROL with nested VMX disabled
This patch is to fix the bug https://bugs.launchpad.net/qemu-
kvm/+bug/120762
IA32_FEATURE_CONTROL is pointless if not expose VMX or SMX bits to
cpuid.1.ecx of vcpu. Current qemu-kvm will error return when kvm_put_msrs
or kvm_get_msrs.
Signed-off-by: Liu Jinsong <jinsong....@intel.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
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https://bugs.launchpad.net/bugs/1213797
Title:
Guest hang after live migration
Status in QEMU:
New
Bug description:
Environment:
------------
Host OS (ia32/ia32e/IA64):ia32e
Guest OS (ia32/ia32e/IA64):ia32e
Guest OS Type (Linux/Windows):Linux
kvm.git Commit:205befd9a5c701b56f569434045821f413f08f6d
qemu-kvm uq/master Commit:ca916d3729564d0eb3c2374a96903f7e8aced8a7
Host Kernel Version:3.11.0-rc1
Hardware:Romley_EP, Ivytown_EP
Bug detailed description:
--------------------------
after guest live migration, the guest will hang, and ping IP fail
note:
1. after guest save/restore, the guest will hang, and ping IP fail
2. This should be a qemu-kvm bug.
kvm + qemu-kvm = result
205befd9 + ca916d37 = bad
205befd9 + f03d07d4 = good
Reproduce steps:
----------------
1.Start a TCP daemon for migration
qemu-system-x86_64 -enable-kvm -m 2G -smp 2 -net nic,macaddr=00:12:34:56:13:45
-net tap,script=/etc/kvm/qemu-ifup rhel6u2.qcow -incoming tcp:localhost:4444
2. create guest
qemu-system-x86_64 -enable-kvm -m 2G -smp 2 -net nic,macaddr=00:12:34:56:13:45
-net tap,script=/etc/kvm/qemu-ifup rhel6u2.qcow
3. migrate tcp:localhost:4444
Current result:
----------------
guest hang
Expected result:
----------------
after live/migration or save/restore, the guest works fine
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