Server 2012 randomly hangs - viostor, EVENT-ID 129

sigmarb

Well-Known Member
Nov 8, 2016
69
5
48
38
Dear Users,

One VM (Server 2012 R2) out of 5 randomly hangs and logs EVENT-ID 129 - viostor. Latest stable virtio-drivers are installed and active.

All Disk related Tests on physical HW are fine. Fujitsu Server with SSD-Drives on Raid-Controller with BBU.

So disk i/o is not the issue i think.

Any idea what could cause windows to randomly hang and thinks, the HW has a problem?


root@pve:~# qm show 101
/usr/bin/kvm -id 101 -chardev 'socket,id=qmp,path=/var/run/qemu-server/101.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -pidfile /var/run/qemu-server/101.pid -daemonize -smbios 'type=1,uuid=9f8669a1-e107-46fd-8e0f-3ecd427d57ae' -name srv2012r2 -smp '4,sockets=1,cores=4,maxcpus=4' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' -vga std -vnc unix:/var/run/qemu-server/101.vnc,x509,password -no-hpet -cpu 'kvm64,+lahf_lm,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv_reset,hv_vpindex,hv_runtime,hv_relaxed,enforce' -m 32768 -k de -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -iscsi 'initiator-name=iqn.1993-08.org.debian:01:4d3b66851af8' -drive 'file=/sas/template/iso/virtio-win.iso,if=none,id=drive-ide1,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.0,unit=1,drive=drive-ide1,id=ide1,bootindex=100' -drive 'file=/sas/template/iso/de_windows_server_2012_r2_x64_dvd_2707952.iso,if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=101' -drive 'file=/dev/pve/vm-101-disk-1,if=none,id=drive-virtio0,format=raw,cache=none,aio=native,detect-zeroes=on' -device 'virtio-blk-pci,drive=drive-virtio0,id=virtio0,bus=pci.0,addr=0xa,bootindex=200' -drive 'file=/sas/images/101/vm-101-disk-2.qcow2,if=none,id=drive-virtio1,format=qcow2,cache=none,aio=native,detect-zeroes=on' -device 'virtio-blk-pci,drive=drive-virtio1,id=virtio1,bus=pci.0,addr=0xb' -netdev 'type=tap,id=net0,ifname=tap101i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' -device 'virtio-net-pci,mac=36:16:BC:66:5B:E0,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300' -rtc 'driftfix=slew,base=localtime' -global 'kvm-pit.lost_tick_policy=discard'

any help is greatly appreciated!
 
Seems that this is only during i take backups with snapshots. Is this a known issue, that during a snapshot, the system is rather slow?
 

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