Public bug reported: hi,
Recently I met a platform case, troubled me for a long time, is there anyone encountered this problem? Environment are as follows: Openstack environment build with fuel. Controller node: 3 Compute node: 30 Ceph node:9 windows virtio driver version : 61.71.104.10000 Ubuntu 12.04.4 LTS QEMU emulator version 2.0.0 (Debian 2.0.0 + dfsg-2ubuntu1.9), Copyright (c) 2003-2008 Fabrice Bellard root@node-96:~# ovs-vsctl --version ovs-vsctl (Open vSwitch) 2.0.2 Compiled Nov 28 2014 21:37:07 Symptoms: The guest of Windows virtual machines on one host occasional crash off and automatically restart. After the restart the network NIC is automatically disabled. Can't allocate ip address with dhcp. Soft reboot is not taking effect, only through hard reboot to restore the card back. Note: 1. The crashed Windows host focused on a single physical node(HW RH2285), although there are nodes with the same type of machines, but no similar problems to happened. Maybe it is ovs's bug, cause windows vm received irregularly packets, then resulting in windows nic crash out, later Windows system crash. 2. when windows vm crashed, there are several windows vm crash simultaneously. (about 3 or 4 not all of them) At first i thought it was the problem of Windows virtio drivers , but the upgrade windows virtio driver is useless. It feels like qemu driver problem. i am not sure about that. Also, I'm not sure whether this bug and the following related. I have to follow the bellow case turn off the KSM parameters on HOST, currently in testing. If someone run into the same case, please reply. Thanks. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1346917 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1338277 dmesg log: [13766077.712750] init: libvirt-bin main process (35678) killed by KILL signal [13766077.712822] init: libvirt-bin main process ended, respawning [13766081.675377] ip_set: protocol 6 [13770171.259174] qbre991247b-d0: port 2(tape991247b-d0) entered disabled state [13770171.266161] device tape991247b-d0 left promiscuous mode [13770171.266200] qbre991247b-d0: port 2(tape991247b-d0) entered disabled state [13770203.296136] device tape991247b-d0 entered promiscuous mode [13770203.329022] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state [13770203.329040] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state [13770204.527595] kvm: zapping shadow pages for mmio generation wraparound [13771734.263654] qbre991247b-d0: port 2(tape991247b-d0) entered disabled state [13771734.263704] qbre991247b-d0: port 1(qvbe991247b-d0) entered disabled state [13771847.638690] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state [13771847.638742] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state [13771847.638758] qbre991247b-d0: port 1(qvbe991247b-d0) entered forwarding state [13771847.638770] qbre991247b-d0: port 1(qvbe991247b-d0) entered forwarding state [13784647.176340] qbr03992610-e3: port 1(qvb03992610-e3) entered disabled state [13784668.538526] qbrc9002954-09: port 1(qvbc9002954-09) entered disabled state [13792069.237135] qbre991247b-d0: port 2(tape991247b-d0) entered disabled state [13792069.246187] device tape991247b-d0 left promiscuous mode [13792069.246215] qbre991247b-d0: port 2(tape991247b-d0) entered disabled state [13792070.174570] device tape991247b-d0 entered promiscuous mode [13792070.207159] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state [13792070.207181] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state [13792071.041157] kvm: zapping shadow pages for mmio generation wraparound [13794383.653582] qbre991247b-d0: port 2(tape991247b-d0) entered disabled state [13794383.666387] device tape991247b-d0 left promiscuous mode [13794383.666413] qbre991247b-d0: port 2(tape991247b-d0) entered disabled state [13794384.468924] device tape991247b-d0 entered promiscuous mode [13794384.501689] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state [13794384.501710] qbre991247b-d0: port 2(tape991247b-d0) entered forwarding state /var/log/libvirt/qemu/instance-0000304b.log qemu: terminating on signal 15 from pid 138887 2016-01-11 05:16:04.937+0000: shutting down 2016-01-11 05:16:05.709+0000: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm-spice -name instance-0000304b -S -machine pc-i440fx-trusty,accel=kvm,usb=off -cpu Westmere -m 8192 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 4a6391d2-a26f-448b-a693-ba4b10d6ee6d -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=2014.2,serial=fba59e94-bf97-4eda-9e43-d866b9eb1598,uuid=4a6391d2-a26f-448b-a693-ba4b10d6ee6d -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-0000304b.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=rbd:volumes/volume-3c6afa29-7cef-4881-823c-fe523e069bea:id=compute:key=AQA1s/RUaAoTLxAAQuBPsckd8J/j6RZ2AciIJA==:auth_supported=cephx\;none:mon_host=10.14.52.4\:6789\;10.14.5 2.5\:6789\;10.14.52.6\:6789,if=none,id=drive-virtio-disk0,format=raw,serial=3c6afa29-7cef-4881-823c-fe523e069bea,cache=none,bps=52428800,iops=3000 -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=38 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:19:30:d5,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/var/lib/nova/instances/4a6391d2-a26f-448b-a693-ba4b10d6ee6d/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -device usb-tablet,id=input0 -vnc 0.0.0.0:13 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 Domain id=171 is tainted: high-privileges char device redirected to /dev/pts/19 (label charserial1) ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1534049 Title: Ubuntu 12.04 + QEmu 2.0 + KSM = 1 + OVS, makes Windows 2008 R2 guests to crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1534049/+subscriptions -- 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