1 files changed, 69 insertions, 0 deletions
diff --git a/results/classifier/118/all/686 b/results/classifier/118/all/686
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+++ b/results/classifier/118/all/686
@@ -0,0 +1,69 @@
+graphic: 0.978
+debug: 0.975
+performance: 0.974
+device: 0.974
+permissions: 0.974
+user-level: 0.972
+network: 0.969
+assembly: 0.968
+register: 0.968
+socket: 0.968
+ppc: 0.967
+architecture: 0.967
+semantic: 0.966
+hypervisor: 0.965
+arm: 0.964
+mistranslation: 0.964
+virtual: 0.962
+files: 0.962
+kernel: 0.962
+boot: 0.959
+TCG: 0.955
+peripherals: 0.953
+PID: 0.953
+x86: 0.952
+vnc: 0.944
+KVM: 0.941
+risc-v: 0.938
+VMM: 0.936
+i386: 0.891
+
+Qemu crashes if it is paused and migrated twice
+Description of problem:
+If the vm is in PAUSED state (in Openstack parlance) (I think libvirt calls that paused as well but uses the command `virsh suspend`), and live-migrated twice, the second time the Qemu process terminates.
+
+This is perfectly repeatable.
+
+If the VM is unpaused and re-paused after the first migration, then the problem does not occur on the next migration.
+Steps to reproduce:
+See also the referenced bug report to openstack, above.
+1. `$ openstack stack create ....`
+2. `$ openstack server pause <UUID>`
+(wait until done)
+3. `$ openstack server migrate --live-migration <UUID>`
+(wait until done)
+4. `$ openstack server migrate --live-migration <UUID>`
+
+The VM is now in ERROR state because it has disappeared: `libvirt.libvirtError: Domain not found: no domain with matching uuid '<UUID>'`
+Additional information:
+The last few lines from the instance-00000ba2.log seem pertinent (this is from the receiving Qemu instance):
+```
+2021-10-22 15:32:53.829+0000: initiating migration
+qemu-system-x86_64: /build/qemu-lb4V37/qemu-4.2/block.c:5523: bdrv_inactivate_recurse: Assertion `!(bs->open_flags & BDRV_O_INACTIVE)' failed.
+2021-10-22 15:32:59.122+0000: shutting down, reason=crashed
+```
+This is logged by libvirt (also on the receiving side):
+```
+Oct 22 15:29:04 ybk140931 ovs-vsctl[20174]: ovs|00001|vsctl|INFO|Called as ovs-vsctl --timeout=5 -- --if-exists del-port tap3a71aa63-6a
+Oct 22 15:31:31 ybk140931 ovs-vsctl[21412]: ovs|00001|vsctl|INFO|Called as ovs-vsctl --timeout=5 -- --if-exists del-port tap3a71aa63-6a -- add-port br-int tap3a71aa63-6a -- set Interface tap3a71aa63-6a "external-ids:attached-mac=\"fa:16:3e:da:03:56\"" -- set Interface tap3a71aa63-6a "external-ids:iface-id=\"3a71aa63-6a39-41d8-9602-04b84834db9e\"" -- set Interface tap3a71aa63-6a "external-ids:vm-id=\"de2b27d2-345c-45fc-8f37-2fa0ed1a1151\"" -- set Interface tap3a71aa63-6a external-ids:iface-status=active
+Oct 22 15:32:58 ybk140931 libvirtd[3237]: Unable to read from monitor: Connection reset by peer
+Oct 22 15:32:59 ybk140931 ovs-vsctl[22001]: ovs|00001|vsctl|INFO|Called as ovs-vsctl --timeout=5 -- --if-exists del-port tap3a71aa63-6a
+Oct 22 15:32:59 ybk140931 libvirtd[3237]: operation failed: domain is not running
+Oct 22 15:32:59 ybk140931 libvirtd[3237]: internal error: qemu unexpectedly closed the monitor: 2021-10-22T15:32:58.845667Z qemu-system-x86_64: Failed to load virtio_pci/modern_queue_state:used
+                                          2021-10-22T15:32:58.845687Z qemu-system-x86_64: Failed to load virtio_pci/modern_state:vqs
+                                          2021-10-22T15:32:58.845690Z qemu-system-x86_64: Failed to load virtio/extra_state:extra_state
+                                          2021-10-22T15:32:58.845692Z qemu-system-x86_64: Failed to load virtio-rng:virtio
+                                          2021-10-22T15:32:58.845695Z qemu-system-x86_64: error while loading state for instance 0x0 of device '0000:00:06.0/virtio-rng'
+                                          2021-10-22T15:32:58.847860Z qemu-system-x86_64: load of migration failed: Input/output error
+Oct 22 15:32:59 ybk140931 libvirtd[3237]: operation failed: domain 'instance-00000ba2' is not running
+```