bastl

The state for the Hyper-V setting can only be changed if you create a new VM. Changing this setting from "yes -> no" or "no -> yes" for an existing VM doesn't change anything. By pressing update and reopen the settings it reverted back to the original value.

Edit: retested with RC6 Installing VMs on XFS array drives workes fine, same for BTRFS cache drive. No corruption found on the qcow2 vdisks so far with the same testings as before. Already existing qcow2 images with compression which got corrupted before in RC1-4 are shown no issues so far. Will have a look at it the next couple days. Compressing an uncompressed qcow2 also not producing corrupted vdisks. Looks like the patches on qemu 4.1.1 fixed my issues. ------------------------------------------------------------------------------ EDIT: Edited the title for better understanding of the issue. Main issue is that qcow2 vdisks hosted on xfs formatted drives won't allow to install the guest os without issues. Installation will fail or lead to corrupted installs. Existing images can also be affected by this. Some reports about ext4 also effected and the warnings I've got using compressed qcow2 files on btrfs might be related to this. Affected qemu version is 4.1. Using RAW images should be fine. First of all I did the the update from 6.7.1 to the 6.8.0RC1 on saturday. Everything went fine i thought. Except of some qemu arguments preventing 2 VMs with GPU passthrough to boot up (root-port-fix). Nothing else changed. No errors in the server logs. As on every weekday morning an extra Win7 VM started up automatically. Fine so far. On thuesday after an software update I had to restart the VM and it won't came back online. The VM showed some weired error I never saw before and after some searches on the web it was clear the file system corrupted somehow. I restored the vdisk from an backup and it booted back up. This time I didn't installed any update or used it like normal for office stuff. It idled for a couple minutes and I noticed the following errors in the VM logs. "unraid qcow2_free_clusters failed: Invalid argument" Restarting this time worked, even if it feels a bit slower as usual but the shown errors quickly counting up. Inside the VM I didn't noticed any performance degredations or errors so far. Looked like a false positive. Rebootet the VM again and it won't startup. I toke the vdisk and attached it to another VM and fired up chkdsk and it found hundreds of file system errors, trying to recover them to the point where either chkdsk finished with unrecoverable errors or it frooze completly. Time to check the other VMs I'am using with an qcow2 vdisk. And what a surprise a Linux Mint VM also showed this error after a couple minutes running. A played around a bit with the xml and removed a couple tweaks. Removed "discard='unmap'" "numatune memory mode='strict' nodeset='0'" and tried again. Same error. Everything else in the xml is on default and runs for almost 2 years now. I tried reverting back to different vdisks from back to september. All files after running a couple minutes showed some errors. The Win7 VM once reported a unreadable file and crashed, the next try on first boot everything fine. Some reboots where fine, some frooze, some reported filesystem corruptions. I tried it with different types of VMs, OVMF, seabios, Q35-3.0, i440fx-3.0 doesn't matter, always the same issue. The only thing that is the same on all VMs is that they use qcow2 as disk image format!? All the VMs are hosted on an single BTRFS NVME cache drive. I've even tried the vdisk for the Win7 VM sitting on the array. Same issue, after a couple minutes the errors popping up. I than tried various different backups back till march. Only VMs with directly passed through ssd/hdd are not affected by this. Is there anything I can try to prevent the vdisk corruption? Below are 2 xml files and the diagnostics from the server running since saturday. Win7 i440fx VM <?xml version='1.0' encoding='UTF-8'?> <domain type='kvm'> <name>Win7_Outlook</name> <uuid>0b67611b-12b3-d0fd-c02b-055394dd34dc</uuid> <metadata> <vmtemplate xmlns="unraid" name="Windows 7" icon="windows7.png" os="windows7"/> </metadata> <memory unit='KiB'>4194304</memory> <currentMemory unit='KiB'>4194304</currentMemory> <memoryBacking> <nosharepages/> </memoryBacking> <vcpu placement='static'>4</vcpu> <cputune> <vcpupin vcpu='0' cpuset='4'/> <vcpupin vcpu='1' cpuset='20'/> <vcpupin vcpu='2' cpuset='5'/> <vcpupin vcpu='3' cpuset='21'/> </cputune> <numatune> <memory mode='strict' nodeset='0'/> </numatune> <os> <type arch='x86_64' machine='pc-i440fx-3.0'>hvm</type> </os> <features> <acpi/> <apic/> </features> <cpu mode='host-passthrough' check='none'> <topology sockets='1' cores='4' threads='1'/> </cpu> <clock offset='localtime'> <timer name='rtc' tickpolicy='catchup'/> <timer name='pit' tickpolicy='delay'/> <timer name='hpet' present='no'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/local/sbin/qemu</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='writeback' discard='unmap'/> <source file='/mnt/user/VMs/Win7_Outlook/WIN7_OUTLOOK.qcow2'/> <target dev='hdc' bus='scsi'/> <boot order='1'/> <address type='drive' controller='0' bus='0' target='0' unit='2'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/mnt/user/isos/Acronis/AcronisMedia.117iso.iso'/> <target dev='hda' bus='ide'/> <readonly/> <boot order='2'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <controller type='usb' index='0' model='ich9-ehci1'> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/> </controller> <controller type='usb' index='0' model='ich9-uhci1'> <master startport='0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' multifunction='on'/> </controller> <controller type='usb' index='0' model='ich9-uhci2'> <master startport='2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/> </controller> <controller type='usb' index='0' model='ich9-uhci3'> <master startport='4'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/> </controller> <controller type='scsi' index='0' model='virtio-scsi'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </controller> <controller type='pci' index='0' model='pci-root'/> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <controller type='virtio-serial' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </controller> <interface type='bridge'> <mac address='52:54:00:64:a8:e2'/> <source bridge='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <target type='isa-serial' port='0'> <model name='isa-serial'/> </target> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <channel type='unix'> <target type='virtio' name='org.qemu.guest_agent.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <input type='tablet' bus='usb'> <address type='usb' bus='0' port='1'/> </input> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' websocket='-1' listen='0.0.0.0' keymap='de'> <listen type='address' address='0.0.0.0'/> </graphics> <video> <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </memballoon> </devices> </domain> Mint Q35 VM <?xml version='1.0' encoding='UTF-8'?> <domain type='kvm' id='7'> <name>Mint</name> <uuid>065a6081-e954-0913-370d-b6001262fb61</uuid> <metadata> <vmtemplate xmlns="unraid" name="Debian" icon="linux-mint.png" os="debian"/> </metadata> <memory unit='KiB'>8388608</memory> <currentMemory unit='KiB'>8388608</currentMemory> <memoryBacking> <nosharepages/> </memoryBacking> <vcpu placement='static'>4</vcpu> <cputune> <vcpupin vcpu='0' cpuset='6'/> <vcpupin vcpu='1' cpuset='22'/> <vcpupin vcpu='2' cpuset='7'/> <vcpupin vcpu='3' cpuset='23'/> </cputune> <numatune> <memory mode='strict' nodeset='0'/> </numatune> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-q35-3.0'>hvm</type> <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader> <nvram>/etc/libvirt/qemu/nvram/065a6081-e954-0913-370d-b6001262fb61_VARS-pure-efi.fd</nvram> </os> <features> <acpi/> <apic/> </features> <cpu mode='host-passthrough' check='none'> <topology sockets='1' cores='4' threads='1'/> </cpu> <clock offset='utc'> <timer name='rtc' tickpolicy='catchup'/> <timer name='pit' tickpolicy='delay'/> <timer name='hpet' present='no'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/local/sbin/qemu</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='writeback' discard='unmap'/> <source file='/mnt/user/VMs/Mint/vdisk1.img'/> <backingStore/> <target dev='hdc' bus='scsi'/> <boot order='1'/> <alias name='scsi0-0-0-2'/> <address type='drive' controller='0' bus='0' target='0' unit='2'/> </disk> <controller type='usb' index='0' model='nec-xhci' ports='15'> <alias name='usb'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </controller> <controller type='scsi' index='0' model='virtio-scsi'> <alias name='scsi0'/> <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/> </controller> <controller type='pci' index='0' model='pcie-root'> <alias name='pcie.0'/> </controller> <controller type='pci' index='1' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='1' port='0x8'/> <alias name='pci.1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/> </controller> <controller type='pci' index='2' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='2' port='0x9'/> <alias name='pci.2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <controller type='pci' index='3' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='3' port='0xa'/> <alias name='pci.3'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <controller type='pci' index='4' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='4' port='0xb'/> <alias name='pci.4'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x3'/> </controller> <controller type='pci' index='5' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='5' port='0xc'/> <alias name='pci.5'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x4'/> </controller> <controller type='pci' index='6' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='6' port='0xd'/> <alias name='pci.6'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x5'/> </controller> <controller type='pci' index='7' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='7' port='0xe'/> <alias name='pci.7'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x6'/> </controller> <controller type='pci' index='8' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='8' port='0xf'/> <alias name='pci.8'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x7'/> </controller> <controller type='pci' index='9' model='pcie-to-pci-bridge'> <model name='pcie-pci-bridge'/> <alias name='pci.9'/> <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> </controller> <controller type='virtio-serial' index='0'> <alias name='virtio-serial0'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/> </controller> <controller type='sata' index='0'> <alias name='ide'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/> </controller> <interface type='bridge'> <mac address='52:54:00:fd:86:8a'/> <source bridge='br0'/> <target dev='vnet1'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> </interface> <serial type='pty'> <source path='/dev/pts/1'/> <target type='isa-serial' port='0'> <model name='isa-serial'/> </target> <alias name='serial0'/> </serial> <console type='pty' tty='/dev/pts/1'> <source path='/dev/pts/1'/> <target type='serial' port='0'/> <alias name='serial0'/> </console> <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain-7-Mint/org.qemu.guest_agent.0'/> <target type='virtio' name='org.qemu.guest_agent.0' state='disconnected'/> <alias name='channel0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <input type='tablet' bus='usb'> <alias name='input0'/> <address type='usb' bus='0' port='3'/> </input> <input type='mouse' bus='ps2'> <alias name='input1'/> </input> <input type='keyboard' bus='ps2'> <alias name='input2'/> </input> <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x08' slot='0x00' function='0x0'/> </source> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/> </hostdev> <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x08' slot='0x00' function='0x1'/> </source> <alias name='hostdev1'/> <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x04fc'/> <product id='0x0003'/> <address bus='3' device='4'/> </source> <alias name='hostdev2'/> <address type='usb' bus='0' port='1'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x0a12'/> <product id='0x0001'/> <address bus='3' device='3'/> </source> <alias name='hostdev3'/> <address type='usb' bus='0' port='2'/> </hostdev> <memballoon model='none'/> </devices> <seclabel type='dynamic' model='dac' relabel='yes'> <label>+0:+100</label> <imagelabel>+0:+100</imagelabel> </seclabel> </domain> unraid-diagnostics-20191016-1208.zip