@stormi oh I see, I'll check the windows 10 vm's then, thank you

@stormi should I send you the full log?

@stormi The virtualization is done on the machine I sent the log and dmesg output to

@stormi We do not store the vm on the host but on a nas

@stormi this is the content

(XEN) [000006e9c3665212] Xen version 4.13.5-9.44 (mockbuild@[unknown]) (gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)) debug=n  Wed Sep 25 12:09:41 CEST 2024
(XEN) [000006e9c36666f6] Latest ChangeSet: 708e83f0e7d1, pq 00d9767f5a3e
(XEN) [000006e9c36680d6] build-id: 36e9b242256dab6caa821db6acc882a4b2ce750c
(XEN) [000006e9c3668b5e] Bootloader: GRUB 2.02
(XEN) [000006e9c366978e] Command line: dom0_mem=1648M,max:1648M watchdog ucode=scan dom0_max_vcpus=1-4 crashkernel=256M,below=4G console=vga vga=mode-0x0311
(XEN) [000006e9c366a892] Xen image load base address: 0x7d400000
(XEN) [000006e9c366b1ca] Video information:
(XEN) [000006e9c366beca]  VGA is graphics mode 640x480, 16 bpp
(XEN) [000006e9c366cb86]  VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN) [000006e9c366d866]  EDID info not retrieved because no DDC retrieval method detected
(XEN) [000006e9c366e52e] Disc information:
(XEN) [000006e9c366ee1e]  Found 1 MBR signatures
(XEN) [000006e9c366f79e]  Found 1 EDD information structures
(XEN) [000006e9c368619a] Xen-e820 RAM map:
(XEN) [000006e9c3686f12]  0000000000000000 - 000000000009ac00 (usable)
(XEN) [000006e9c3687da6]  000000000009ac00 - 00000000000a0000 (reserved)
(XEN) [000006e9c3688b4a]  00000000000e0000 - 0000000000100000 (reserved)
(XEN) [000006e9c368998e]  0000000000100000 - 000000007da71000 (usable)
(XEN) [000006e9c368a7ca]  000000007da71000 - 000000007dabf000 (reserved)
(XEN) [000006e9c368b506]  000000007dabf000 - 000000007db5a000 (ACPI data)
(XEN) [000006e9c368c29a]  000000007db5a000 - 000000007dd59000 (ACPI NVS)
(XEN) [000006e9c368d182]  000000007dd59000 - 000000007f364000 (reserved)
(XEN) [000006e9c368de6a]  000000007f364000 - 000000007f365000 (usable)
(XEN) [000006e9c368eb92]  000000007f365000 - 000000007f3eb000 (ACPI NVS)
(XEN) [000006e9c368f8d6]  000000007f3eb000 - 000000007f800000 (usable)
(XEN) [000006e9c36905d2]  0000000080000000 - 0000000090000000 (reserved)
(XEN) [000006e9c36912da]  00000000fed1c000 - 00000000fed20000 (reserved)
(XEN) [000006e9c3692096]  00000000ff000000 - 0000000100000000 (reserved)
(XEN) [000006e9c3692f5a]  0000000100000000 - 0000002080000000 (usable)
(XEN) [000006e9c58ee402] Kdump: 256MB (262144kB) at 0x6d600000
(XEN) [000006e9c634823a] ACPI: RSDP 000F0490, 0024 (r2 FTS   )
(XEN) [000006e9c634a78e] ACPI: XSDT 7DADD090, 009C (r1 FTS    D3032-A1  1072009 AMI     10013)
(XEN) [000006e9c634ccee] ACPI: FACP 7DAE8330, 00F4 (r4 FTS    D3032-A1  1072009 AMI     10013)
(XEN) [000006e9c634f50a] ACPI: DSDT 7DADD1B8, B176 (r2 FTS    D3032-A1       17 INTL 20091112)
(XEN) [000006e9c6350fe6] ACPI: FACS 7DD56F80, 0040
(XEN) [000006e9c63521a2] ACPI: APIC 7DAE8428, 00D4 (r3 FTS    D3032-A1  1072009 AMI     10013)
(XEN) [000006e9c63538f2] ACPI: FPDT 7DAE8500, 0044 (r1 FTS    D3032-A1  1072009 AMI     10013)
(XEN) [000006e9c6354f56] ACPI: MCFG 7DAE8548, 003C (r1 FTS    OEMMCFG.  1072009 MSFT       97)
(XEN) [000006e9c63565a6] ACPI: SRAT 7DAE8588, 0330 (r1 A M I  AMI SRAT        1 AMI.        0)
(XEN) [000006e9c6357db6] ACPI: SLIT 7DAE88B8, 0030 (r1 A M I  AMI SLIT        0 AMI.        0)
(XEN) [000006e9c6359286] ACPI: HPET 7DAE88E8, 0038 (r1 FTS    D3032-A1  1072009 AMI.        5)
(XEN) [000006e9c635a86e] ACPI: SPMI 7DAE8920, 0040 (r5 A M I   OEMSPMI        0 AMI.        0)
(XEN) [000006e9c635be22] ACPI: SSDT 7DAE8960, 70104 (r2  INTEL    CpuPm     4000 INTL 20051117)
(XEN) [000006e9c635d7da] ACPI: SPCR 7DB58A68, 0050 (r1  A M I   APTIO4  1072009 AMI.        5)
(XEN) [000006e9c635ee92] ACPI: EINJ 7DB58AB8, 0130 (r1    AMI AMI EINJ        0             0)
(XEN) [000006e9c63605d2] ACPI: ERST 7DB58BE8, 0230 (r1  AMIER AMI ERST        0             0)
(XEN) [000006e9c6361b5a] ACPI: HEST 7DB58E18, 00A8 (r1    AMI AMI HEST        0             0)
(XEN) [000006e9c6363046] ACPI: BERT 7DB58EC0, 0030 (r1    AMI AMI BERT        0             0)
(XEN) [000006e9c63644ca] ACPI: DMAR 7DB58EF0, 00F8 (r1 A M I   OEMDMAR        1 INTL        1)
(XEN) [000006e9c63cf5a6] System RAM: 131038MB (134183044kB)
(XEN) [000006e9de01dee2] SRAT: PXM 0 -> APIC 00 -> Node 0
(XEN) [000006e9de01ed26] SRAT: PXM 0 -> APIC 02 -> Node 0
(XEN) [000006e9de01f79a] SRAT: PXM 0 -> APIC 04 -> Node 0
(XEN) [000006e9de02025e] SRAT: PXM 0 -> APIC 06 -> Node 0
(XEN) [000006e9de020fb6] SRAT: PXM 1 -> APIC 20 -> Node 1
(XEN) [000006e9de021b1e] SRAT: PXM 1 -> APIC 22 -> Node 1
(XEN) [000006e9de022622] SRAT: PXM 1 -> APIC 24 -> Node 1
(XEN) [000006e9de0230e6] SRAT: PXM 1 -> APIC 26 -> Node 1
(XEN) [000006e9de024d3e] SRAT: Node 0 PXM 0 0-80000000
(XEN) [000006e9de025dee] SRAT: Node 0 PXM 0 100000000-1080000000
(XEN) [000006e9de026e62] SRAT: Node 1 PXM 1 1080000000-2080000000
(XEN) [000006ebea27b3fe] Domain heap initialised DMA width 32 bits
(XEN) [000006ec283a27fa] vesafb: framebuffer at 0x00000000de000000, mapped to 0xffff82c000201000, using 2048k, total 8128k
(XEN) [000006ec283a394e] vesafb: mode is 640x480x16, linelength=1280, font 8x8
(XEN) [000006ec283a4aaa] vesafb: Truecolor: size=0:5:6:5, shift=0:11:5:0
(XEN) [000006ec283b53a2] CPU Vendor: Intel, Family 6 (0x6), Model 45 (0x2d), Stepping 7 (raw 000206d7)
(XEN) [000006ec4147336e] found SMP MP-table at 000fded0
(XEN) [000006ec415ae4de] DMI 2.7 present.
(XEN) [000006ec4169c57a] Using APIC driver default
(XEN) [000006ec417b0a12] XSM Framework v1.0.1 initialized
(XEN) [000006ec418ec5be] Initialising XSM SILO mode
(XEN) [000006ec41a18a16] ACPI: PM-Timer IO Port: 0x408 (24 bits)
(XEN) [000006ec41b71c06] ACPI: SLEEP INFO: pm1x_cnt[1:404,1:0], pm1x_evt[1:400,1:0]
(XEN) [000006ec41c724d2] ACPI: 32/64X FACS address mismatch in FADT - 7dd56f80/0000000000000000, using 32
(XEN) [000006ec41dc8476] ACPI:             wakeup_vec[7dd56f8c], vec_size[20]
(XEN) [000006ec41f966fa] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
(XEN) [000006ec4212bc7a] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
(XEN) [000006ec422c12f2] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
(XEN) [000006ec42456a0e] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] enabled)
(XEN) [000006ec425ec23e] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x20] enabled)
(XEN) [000006ec42781f1e] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x22] enabled)
(XEN) [000006ec429179a2] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x24] enabled)
(XEN) [000006ec42aacf62] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x26] enabled)
(XEN) [000006ec42c617ba] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
(XEN) [000006ec42df983e] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
(XEN) [000006ec42f9185a] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
(XEN) [000006ec4312990a] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
(XEN) [000006ec432c1b16] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
(XEN) [000006ec43459b4e] ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
(XEN) [000006ec435f1c9a] ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
(XEN) [000006ec43789b2e] ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
(XEN) [000006ec4393f1c6] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
(XEN) [000006ec43aed4ea] IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
(XEN) [000006ec43bfcefa] ACPI: IOAPIC (id[0x02] address[0xfec01000] gsi_base[24])
(XEN) [000006ec43cf55b6] IOAPIC[1]: apic_id 2, version 32, address 0xfec01000, GSI 24-47
(XEN) [000006ec43e08ef6] ACPI: IOAPIC (id[0x03] address[0xfec40000] gsi_base[48])
(XEN) [000006ec43f0144a] IOAPIC[2]: apic_id 3, version 32, address 0xfec40000, GSI 48-71
(XEN) [000006ec44024032] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) [000006ec4411d0b6] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
(XEN) [000006ec44233e42] Enabling APIC mode:  Flat.  Using 3 I/O APICs
(XEN) [000006ec443b5ca6] ACPI: HPET id: 0x8086a701 base: 0xfed00000
(XEN) [000006ec4452ad2a] PCI: MCFG configuration 0: base 80000000 segment 0000 buses 00 - ff
(XEN) [000006ec4464d3d2] PCI: MCFG area at 80000000 reserved in E820
(XEN) [000006ec447bd1ea] PCI: Using MCFG for segment 0000 bus 00-ff
(XEN) [000006ec449a496e] Xen ERST support is initialized.
(XEN) [000006ec44ae9e26] HEST: Table parsing has been initialized
(XEN) [000006ec44c4fb5a] Using ACPI (MADT) for SMP configuration information
(XEN) [000006ec44de6a56] SMP: Allowing 8 CPUs (0 hotplug CPUs)
(XEN) [000006ec44f467de] IRQ limits: 72 GSI, 1480 MSI/MSI-X
(XEN) [000006ec46e879c6] Switched to APIC driver x2apic_phys
(XEN) [000006ec4775c566] microcode: CPU0 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [000006ec47898fca] xstate: size: 0x340 and states: 0x7
(XEN) [000006ec479f01d2] CPU0: Intel machine check reporting enabled
(XEN) [000006ec4a0b34d6] Speculative mitigation facilities:
(XEN) [000006ec4c73c43a]   Hardware hints:
(XEN) [000006ec4ed7726e]   Hardware features: IBPB IBRS STIBP SSBD L1D_FLUSH MD_CLEAR
(XEN) [000006ec5395be3e]   Compiled-in support: INDIRECT_THUNK SHADOW_PAGING HARDEN_LOCK
(XEN) [000006ec58607fa2]   Xen settings: BTI-Thunk RETPOLINE, SPEC_CTRL: IBRS- STIBP- SSBD- PSFD-, Other: IBPB-ctxt L1D_FLUSH VERW BRANCH_HARDEN
(XEN) [000006ec5d3e765a]   L1TF: believed vulnerable, maxphysaddr L1D 46, CPUID 46, Safe address 300000000000
(XEN) [000006ec6213eede]   Support for HVM VMs: MSR_SPEC_CTRL RSB EAGER_FPU
(XEN) [000006ec649116ba]   Support for PV VMs: MSR_SPEC_CTRL RSB EAGER_FPU VERW
(XEN) [000006ec670f8862]   XPTI (64-bit PV only): Dom0 enabled, DomU enabled (without PCID)
(XEN) [000006ec6be28b0e]   PV L1TF shadowing: Dom0 disabled, DomU enabled
(XEN) [000006ec6e5ecf52] Using scheduler: SMP Credit Scheduler (credit)
(XEN) [000006ec763880da] Platform timer is 14.318MHz HPET
(XEN) [    7.126199] Detected 1800.007 MHz processor.
(XEN) [    7.151548] alt table ffff82d080459fd8 -> ffff82d08046ce7c
(XEN) [    7.167580] Intel VT-d iommu 0 supported page sizes: 4kB
(XEN) [    7.174121] Intel VT-d iommu 1 supported page sizes: 4kB
(XEN) [    7.180648] Intel VT-d Snoop Control enabled.
(XEN) [    7.187087] Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) [    7.193554] Intel VT-d Queued Invalidation enabled.
(XEN) [    7.199982] Intel VT-d Interrupt Remapping enabled.
(XEN) [    7.206369] Intel VT-d Posted Interrupt not enabled.
(XEN) [    7.212749] Intel VT-d Shared EPT tables not enabled.
(XEN) [    7.220568] I/O virtualisation enabled
(XEN) [    7.226900]  - Dom0 mode: Relaxed
(XEN) [    7.233151] Interrupt remapping enabled
(XEN) [    7.239384] Enabled directed EOI with ioapic_ack_old on!
(XEN) [    7.246738] ENABLING IO-APIC IRQs
(XEN) [    7.252916]  -> Using old ACK method
(XEN) [    7.259317] ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) [    8.301418] Allocated console ring of 64 KiB.
(XEN) [    8.307664] VMX: Supported advanced features:
(XEN) [    8.313836]  - APIC MMIO access virtualisation
(XEN) [    8.320040]  - APIC TPR shadow
(XEN) [    8.326131]  - Extended Page Tables (EPT)
(XEN) [    8.332268]  - Virtual-Processor Identifiers (VPID)
(XEN) [    8.338398]  - Virtual NMI
(XEN) [    8.344457]  - MSR direct-access bitmap
(XEN) [    8.350495]  - Unrestricted Guest
(XEN) [    8.356528] HVM: ASIDs enabled.
(XEN) [    8.362466] HVM: VMX enabled
(XEN) [    8.368337] HVM: Hardware Assisted Paging (HAP) detected
(XEN) [    8.374258] HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) [    8.380435] alt table ffff82d080459fd8 -> ffff82d08046ce7c
(XEN) [000006ecfe4c3f5c] microcode: CPU1 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [000006ecffb9db7a] microcode: CPU2 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [000006ed0124c632] microcode: CPU3 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [000006ed029e3d68] microcode: CPU4 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [000006ed040d575a] microcode: CPU5 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [000006ed057dc280] microcode: CPU6 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [000006ed06ece4b4] microcode: CPU7 updated from revision 0x710 to 0x71a, date = 2020-03-24
(XEN) [    8.480221] Brought up 8 CPUs
(XEN) [    8.486073] Testing NMI watchdog on all CPUs: ok
(XEN) [    8.523748] Scheduling granularity: cpu, 1 CPU per sched-resource
(XEN) [    8.549842] mcheck_poll: Machine check polling timer started.
(XEN) [    8.555766] Dom0 has maximum 840 PIRQs
(XEN) [    8.561687] csched_alloc_domdata: setting dom 0 as the privileged domain
(XEN) [    8.573043] NX (Execute Disable) protection active
(XEN) [    8.578901] *** Building a PV Dom0 ***
(XEN) [    8.984955]  Xen  kernel: 64-bit, lsb, compat32
(XEN) [    8.990711]  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x302c000
(XEN) [    9.003000] PHYSICAL MEMORY ARRANGEMENT:
(XEN) [    9.008713]  Dom0 alloc.:   000000202c000000->0000002030000000 (400385 pages to be allocated)
(XEN) [    9.020137]  Init. ramdisk: 000000207ec01000->000000207ffff460
(XEN) [    9.026051] VIRTUAL MEMORY ARRANGEMENT:
(XEN) [    9.031758]  Loaded kernel: ffffffff81000000->ffffffff8302c000
(XEN) [    9.037532]  Init. ramdisk: 0000000000000000->0000000000000000
(XEN) [    9.043334]  Phys-Mach map: 0000008000000000->0000008000338000
(XEN) [    9.049146]  Start info:    ffffffff8302c000->ffffffff8302c4b8
(XEN) [    9.054975]  Xenstore ring: 0000000000000000->0000000000000000
(XEN) [    9.060822]  Console ring:  0000000000000000->0000000000000000
(XEN) [    9.066686]  Page tables:   ffffffff8302d000->ffffffff8304a000
(XEN) [    9.072566]  Boot stack:    ffffffff8304a000->ffffffff8304b000
(XEN) [    9.078485]  TOTAL:         ffffffff80000000->ffffffff83400000
(XEN) [    9.084450]  ENTRY ADDRESS: ffffffff8242b180
(XEN) [    9.092453] Dom0 has maximum 4 VCPUs
(XEN) [    9.138264] Found masked UR signaling on 0000:00:00.0
(XEN) [    9.144233] Found masked UR signaling on 0000:00:01.0
(XEN) [    9.150226] Found masked UR signaling on 0000:00:02.0
(XEN) [    9.156198] Found masked UR signaling on 0000:00:02.2
(XEN) [    9.162181] Found masked UR signaling on 0000:00:03.0
(XEN) [    9.168220] Masked VT-d error signaling on 0000:00:05.0
(XEN) [    9.188107] Found masked UR signaling on 0000:80:00.0
(XEN) [    9.194173] Masked VT-d error signaling on 0000:80:05.0
(XEN) [   21.603659] Initial low memory virq threshold set at 0x4000 pages.
(XEN) [   21.609780] Scrubbing Free RAM in background
(XEN) [   21.615876] Std. Loglevel: Errors, warnings and info
(XEN) [   21.622112] Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) [   21.628563] Xen is relinquishing VGA console.
(XEN) [   21.641216] *** Serial input to DOM0 (type 'CTRL-a' three times to switch input)
(XEN) [   21.641466] Freed 628kB init memory
(XEN) [   27.908847] Found masked UR signaling on 0000:00:00.0
(XEN) [   27.909744] Found masked UR signaling on 0000:00:01.0
(XEN) [   27.910672] Found masked UR signaling on 0000:00:02.0
(XEN) [   27.911581] Found masked UR signaling on 0000:00:02.2
(XEN) [   27.912512] Found masked UR signaling on 0000:00:03.0
(XEN) [   27.913203] Masked VT-d error signaling on 0000:00:05.0
(XEN) [   27.984018] Found masked UR signaling on 0000:80:00.0
(XEN) [   27.984671] Masked VT-d error signaling on 0000:80:05.0

Hello, some VMs occasionally reboot with the log saying that the vm is deactivated, but I don't understand why the few vms do this or what should be changed?
I have attached the content of the SMlog at the time of the event.

xcp-companyname ~]# xl info
host                   : xcp-companyname
release                : 4.19.0+1
version                : #1 SMP Tue Jan 23 14:12:55 CET 2024
machine                : x86_64
nr_cpus                : 8
max_cpu_id             : 7
nr_nodes               : 2
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 1800.007
hw_caps                : bfebfbff:1fbee3ff:2c100800:00000001:00000001:00000000:00000000:00000100
virt_caps              : pv hvm hvm_directio pv_directio hap shadow
total_memory           : 131038
free_memory            : 71696
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 
xen_major              : 4
xen_minor              : 13
xen_extra              : .5-9.44
xen_version            : 4.13.5-9.44
xen_caps               : xen-3.0-x86_64 hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 708e83f0e7d1, pq 00d9767f5a3e
xen_commandline        : dom0_mem=1648M,max:1648M watchdog ucode=scan dom0_max_vcpus=1-4 crashkernel=256M,below=4G console=vga vga=mode-0x0311
cc_compiler            : gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
cc_compile_by          : mockbuild
cc_compile_domain      : [unknown]
cc_compile_date        : Wed Sep 25 12:09:41 CEST 2024
build_id               : 36e9b242256dab6caa821db6acc882a4b2ce750c
xend_config_format     : 4

['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd']
Oct  9 01:08:53 xcp-companyname SM: [23137]   pread SUCCESS
Oct  9 01:08:53 xcp-companyname SM: [23137] lock: released /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:53 xcp-companyname SM: [23137] vdi_deactivate {'sr_uuid': 'e6e79fdc-8ca9-e89f-b3a5-68d79810cda1', 'subtask_of': 'DummyRef:|4214a67c-1800-440e-8e63-8007ed005d00|VDI.deactivate', 'vdi_ref': 'OpaqueRef:72039b18-8df3-4231-ae2b-e2fa4c045e72', 'vdi_on_boot': 'persist', 'args': [], 'o_direct': False, 'vdi_location': '554525a9-b40d-4f44-abb0-057a59af00c4', 'host_ref': 'OpaqueRef:e94dd9a5-d723-44b9-860d-ce60d886af67', 'session_ref': 'OpaqueRef:e08cb7d8-9fd5-42f0-a70a-413b07773912', 'device_config': {'nfsversion': '4.1', 'server': '10.0.1.7', 'SRmaster': 'false', 'serverpath': '/volume1/XCP_SSD_V2', 'options': ''}, 'command': 'vdi_deactivate', 'vdi_allow_caching': 'false', 'sr_ref': 'OpaqueRef:b5500def-7982-4c5d-9c48-fe744cf61313', 'vdi_uuid': '554525a9-b40d-4f44-abb0-057a59af00c4'}
Oct  9 01:08:53 xcp-companyname SM: [23137] lock: opening lock file /var/lock/sm/554525a9-b40d-4f44-abb0-057a59af00c4/vdi
Oct  9 01:08:53 xcp-companyname SM: [23137] blktap2.deactivate
Oct  9 01:08:53 xcp-companyname SM: [23137] lock: acquired /var/lock/sm/554525a9-b40d-4f44-abb0-057a59af00c4/vdi
Oct  9 01:08:53 xcp-companyname SM: [23137] ['/usr/sbin/tap-ctl', 'close', '-p', '21225', '-m', '6', '-t', '30']
Oct  9 01:08:53 xcp-companyname SM: [23137]  = 0
Oct  9 01:08:53 xcp-companyname SM: [23137] ['/usr/sbin/tap-ctl', 'detach', '-p', '21225', '-m', '6']
Oct  9 01:08:54 xcp-companyname SM: [23137]  = 0
Oct  9 01:08:54 xcp-companyname SM: [23137] ['/usr/sbin/tap-ctl', 'free', '-m', '6']
Oct  9 01:08:54 xcp-companyname SM: [23137]  = 0
Oct  9 01:08:54 xcp-companyname SM: [23137] tap.deactivate: Shut down Tapdisk(vhd:/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd, pid=21225, minor=6, state=R)
Oct  9 01:08:54 xcp-companyname SM: [23137] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd']
Oct  9 01:08:54 xcp-companyname SM: [23137]   pread SUCCESS
Oct  9 01:08:54 xcp-companyname SM: [23137] Removed host key host_OpaqueRef:e94dd9a5-d723-44b9-860d-ce60d886af67 for 554525a9-b40d-4f44-abb0-057a59af00c4
Oct  9 01:08:54 xcp-companyname SM: [23137] lock: released /var/lock/sm/554525a9-b40d-4f44-abb0-057a59af00c4/vdi
Oct  9 01:08:54 xcp-companyname SM: [23203] lock: opening lock file /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:54 xcp-companyname SM: [23203] lock: acquired /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:54 xcp-companyname SM: [23203] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd']
Oct  9 01:08:54 xcp-companyname SM: [23203]   pread SUCCESS
Oct  9 01:08:54 xcp-companyname SM: [23203] vdi_detach {'sr_uuid': 'e6e79fdc-8ca9-e89f-b3a5-68d79810cda1', 'subtask_of': 'DummyRef:|92293dc9-7b8f-4ee1-94fd-07af7ae0334e|VDI.detach', 'vdi_ref': 'OpaqueRef:72039b18-8df3-4231-ae2b-e2fa4c045e72', 'vdi_on_boot': 'persist', 'args': [], 'o_direct': False, 'vdi_location': '554525a9-b40d-4f44-abb0-057a59af00c4', 'host_ref': 'OpaqueRef:e94dd9a5-d723-44b9-860d-ce60d886af67', 'session_ref': 'OpaqueRef:183ccc76-b6d1-44af-9154-a89d65e7bb25', 'device_config': {'nfsversion': '4.1', 'server': '10.0.1.7', 'SRmaster': 'false', 'serverpath': '/volume1/XCP_SSD_V2', 'options': ''}, 'command': 'vdi_detach', 'vdi_allow_caching': 'false', 'sr_ref': 'OpaqueRef:b5500def-7982-4c5d-9c48-fe744cf61313', 'vdi_uuid': '554525a9-b40d-4f44-abb0-057a59af00c4'}
Oct  9 01:08:54 xcp-companyname SM: [23203] lock: opening lock file /var/lock/sm/554525a9-b40d-4f44-abb0-057a59af00c4/vdi
Oct  9 01:08:54 xcp-companyname SM: [23203] lock: released /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:57 xcp-companyname SM: [23368] lock: opening lock file /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:57 xcp-companyname SM: [23368] lock: acquired /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:57 xcp-companyname SM: [23368] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd']
Oct  9 01:08:57 xcp-companyname SM: [23368]   pread SUCCESS
Oct  9 01:08:57 xcp-companyname SM: [23368] lock: released /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:57 xcp-companyname SM: [23368] vdi_epoch_end {'sr_uuid': 'e6e79fdc-8ca9-e89f-b3a5-68d79810cda1', 'subtask_of': 'DummyRef:|56484b88-c543-490f-9190-0effe9a0e9fb|VDI.epoch_end', 'vdi_ref': 'OpaqueRef:72039b18-8df3-4231-ae2b-e2fa4c045e72', 'vdi_on_boot': 'persist', 'args': [], 'o_direct': False, 'vdi_location': '554525a9-b40d-4f44-abb0-057a59af00c4', 'host_ref': 'OpaqueRef:e94dd9a5-d723-44b9-860d-ce60d886af67', 'session_ref': 'OpaqueRef:487c5469-ac45-4ad3-a903-b7f6b19e9477', 'device_config': {'nfsversion': '4.1', 'server': '10.0.1.7', 'SRmaster': 'false', 'serverpath': '/volume1/XCP_SSD_V2', 'options': ''}, 'command': 'vdi_epoch_end', 'vdi_allow_caching': 'false', 'sr_ref': 'OpaqueRef:b5500def-7982-4c5d-9c48-fe744cf61313', 'vdi_uuid': '554525a9-b40d-4f44-abb0-057a59af00c4'}
Oct  9 01:08:59 xcp-companyname SM: [23399] lock: opening lock file /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:59 xcp-companyname SM: [23399] lock: acquired /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:59 xcp-companyname SM: [23399] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd']
Oct  9 01:08:59 xcp-companyname SM: [23399]   pread SUCCESS
Oct  9 01:08:59 xcp-companyname SM: [23399] lock: released /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:59 xcp-companyname SM: [23399] vdi_epoch_begin {'sr_uuid': 'e6e79fdc-8ca9-e89f-b3a5-68d79810cda1', 'subtask_of': 'DummyRef:|ceb6e2be-9968-49b0-8e6b-64c54563e6c0|VDI.epoch_begin', 'vdi_ref': 'OpaqueRef:72039b18-8df3-4231-ae2b-e2fa4c045e72', 'vdi_on_boot': 'persist', 'args': [], 'o_direct': False, 'vdi_location': '554525a9-b40d-4f44-abb0-057a59af00c4', 'host_ref': 'OpaqueRef:e94dd9a5-d723-44b9-860d-ce60d886af67', 'session_ref': 'OpaqueRef:17a62452-4515-4218-b6ec-e14e29e4ccc8', 'device_config': {'nfsversion': '4.1', 'server': '10.0.1.7', 'SRmaster': 'false', 'serverpath': '/volume1/XCP_SSD_V2', 'options': ''}, 'command': 'vdi_epoch_begin', 'vdi_allow_caching': 'false', 'sr_ref': 'OpaqueRef:b5500def-7982-4c5d-9c48-fe744cf61313', 'vdi_uuid': '554525a9-b40d-4f44-abb0-057a59af00c4'}
Oct  9 01:08:59 xcp-companyname SM: [23414] lock: opening lock file /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:59 xcp-companyname SM: [23414] lock: acquired /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:59 xcp-companyname SM: [23414] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd']
Oct  9 01:08:59 xcp-companyname SM: [23414]   pread SUCCESS
Oct  9 01:08:59 xcp-companyname SM: [23414] vdi_attach {'sr_uuid': 'e6e79fdc-8ca9-e89f-b3a5-68d79810cda1', 'subtask_of': 'DummyRef:|e10c1fa5-0179-468f-b930-e170b982f5eb|VDI.attach2', 'vdi_ref': 'OpaqueRef:72039b18-8df3-4231-ae2b-e2fa4c045e72', 'vdi_on_boot': 'persist', 'args': ['true'], 'o_direct': False, 'vdi_location': '554525a9-b40d-4f44-abb0-057a59af00c4', 'host_ref': 'OpaqueRef:e94dd9a5-d723-44b9-860d-ce60d886af67', 'session_ref': 'OpaqueRef:80bb0eda-8a55-4f05-b044-f7b7d487428e', 'device_config': {'nfsversion': '4.1', 'server': '10.0.1.7', 'SRmaster': 'false', 'serverpath': '/volume1/XCP_SSD_V2', 'options': ''}, 'command': 'vdi_attach', 'vdi_allow_caching': 'false', 'sr_ref': 'OpaqueRef:b5500def-7982-4c5d-9c48-fe744cf61313', 'vdi_uuid': '554525a9-b40d-4f44-abb0-057a59af00c4'}
Oct  9 01:08:59 xcp-companyname SM: [23414] lock: opening lock file /var/lock/sm/554525a9-b40d-4f44-abb0-057a59af00c4/vdi
Oct  9 01:08:59 xcp-companyname SM: [23414] <__main__.NFSFileVDI object at 0x7f994301db90>
Oct  9 01:08:59 xcp-companyname SM: [23414] result: {'params_nbd': 'nbd:unix:/run/blktap-control/nbd/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4', 'o_direct_reason': 'NO_RO_IMAGE', 'params': '/dev/sm/backend/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4', 'o_direct': True, 'xenstore_data': {'scsi/0x12/0x80': 'AIAAEjU1NDUyNWE5LWI0MGQtNGYgIA==', 'scsi/0x12/0x83': 'AIMAMQIBAC1YRU5TUkMgIDU1NDUyNWE5LWI0MGQtNGY0NC1hYmIwLTA1N2E1OWFmMDBjNCA=', 'vdi-uuid': '554525a9-b40d-4f44-abb0-057a59af00c4', 'mem-pool': 'e6e79fdc-8ca9-e89f-b3a5-68d79810cda1'}}
Oct  9 01:08:59 xcp-companyname SM: [23414] lock: released /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:59 xcp-companyname SM: [23443] lock: opening lock file /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:08:59 xcp-companyname SM: [23443] lock: acquired /var/lock/sm/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/sr
Oct  9 01:09:00 xcp-companyname SM: [23443] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/e6e79fdc-8ca9-e89f-b3a5-68d79810cda1/554525a9-b40d-4f44-abb0-057a59af00c4.vhd']
Oct  9 01:09:00 xcp-companyname SM: [23443]   pread SUCCESS

These are repeated in yesterday's log when it fixed itself, but I'd like to know what happened.

Sep 30 19:15:17 xcpng-Companyxyz SM: [4116] lock: released /var/lock/sm/xyID1/vdi
Sep 30 19:15:18 xcpng-Companyxyz SM: [4160] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID3.vhd)
Sep 30 19:15:20 xcpng-Companyxyz SM: [4184] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID4.vhd)
Sep 30 19:15:21 xcpng-Companyxyz SM: [4191] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID5.vhd)
Sep 30 19:15:21 xcpng-Companyxyz SM: [4200] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID6.vhd)
Sep 30 19:15:22 xcpng-Companyxyz SM: [4207] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID7.vhd)
Sep 30 19:15:23 xcpng-Companyxyz SM: [4220] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID8.vhd)
Sep 30 19:15:24 xcpng-Companyxyz SM: [4243] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID9.vhd)
Sep 30 19:15:25 xcpng-Companyxyz SM: [4250] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID10.vhd)
Sep 30 19:15:25 xcpng-Companyxyz SM: [4257] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID11.vhd)
Sep 30 19:15:26 xcpng-Companyxyz SM: [4264] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID12.vhd)
Sep 30 19:15:27 xcpng-Companyxyz SM: [4271] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID13.vhd)
Sep 30 19:15:27 xcpng-Companyxyz SM: [4287] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID14.vhd)
Sep 30 19:15:28 xcpng-Companyxyz SM: [4309] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID15.vhd)
Sep 30 19:15:29 xcpng-Companyxyz SM: [4323] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID16.vhd)
Sep 30 19:15:30 xcpng-Companyxyz SM: [4330] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID17.vhd)
Sep 30 19:15:30 xcpng-Companyxyz SM: [4339] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID18.vhd)
Sep 30 19:15:31 xcpng-Companyxyz SM: [4346] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID19.vhd)
Sep 30 19:15:32 xcpng-Companyxyz SM: [4353] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID20.vhd)
Sep 30 19:15:32 xcpng-Companyxyz SM: [4360] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID21.vhd)
Sep 30 19:15:33 xcpng-Companyxyz SM: [4373] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID22.vhd)
Sep 30 19:15:33 xcpng-Companyxyz SM: [4396] nfs-on-slave.check(/var/run/sr-mount/xyID2/xyID23.vhd)
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] lock: opening lock file /var/lock/sm/xyID24/vdi
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] lock: acquired /var/lock/sm/xyID25/vdi
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] Pause for xyID26
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] Calling tap pause with minor 8
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] ['/usr/sbin/tap-ctl', 'pause', '-p', '26306', '-m', '8']
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749]  = 0
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] lock: released /var/lock/sm/xyID27/vdi
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] lock: acquired /var/lock/sm/xyID27/vdi
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] Unpause for xyID27
Sep 30 19:19:56 xcpng-Companyxyz SM: [5749] Realpath: /var/run/sr-mount/xyID2/xyID27.vhd
Sep 30 19:19:57 xcpng-Companyxyz SM: [5749] lock: opening lock file /var/lock/sm/xyID2/sr
Sep 30 19:19:57 xcpng-Companyxyz SM: [5749] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/xyID2/xyID27.vhd']
Sep 30 19:19:57 xcpng-Companyxyz SM: [5749]   pread SUCCESS
Sep 30 19:19:57 xcpng-Companyxyz SM: [5749] Calling tap unpause with minor 8
Sep 30 19:19:57 xcpng-Companyxyz SM: [5749] ['/usr/sbin/tap-ctl', 'unpause', '-p', '26306', '-m', '8', '-a', 'vhd:/var/run/sr-mount/xyID2/xyID27.vhd']
Sep 30 19:19:57 xcpng-Companyxyz SM: [5749]  = 0
Sep 30 19:19:57 xcpng-Companyxyz SM: [5749] lock: released /var/lock/sm/xyID27/vdi

Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] lock: released /var/lock/sm/xyID28/vdi
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] lock: acquired /var/lock/sm/xyID28/vdi
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] Unpause for xyID28
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] Realpath: /var/run/sr-mount/xyID2/xyID28.vhd
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] lock: opening lock file /var/lock/sm/xyID2/sr
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/xyID2/xyID28.vhd']
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851]   pread SUCCESS
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] Calling tap unpause with minor 7
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851] ['/usr/sbin/tap-ctl', 'unpause', '-p', '13585', '-m', '7', '-a', 'vhd:/var/run/sr-mount/xyID2/xyID28.vhd']
Sep 30 19:43:51 xcpng-Companyxyz SM: [13851]  = 0

Sep 30 20:16:26 xcpng-Companyxyz SM: [24489] lock: released /var/lock/sm/IDxz1/vdi
Sep 30 20:16:27 xcpng-Companyxyz SM: [24522] nfs-on-slave.check(/var/run/sr-mount/xyID2/OLD_IDxz1.vhd)
Sep 30 20:16:59 xcpng-Companyxyz SM: [24695] nfs-on-slave.check(/var/run/sr-mount/xyID2/IDxz2.vhd)
Sep 30 20:17:02 xcpng-Companyxyz SM: [24706] nfs-on-slave.check(/var/run/sr-mount/xyID2/OLD_IDxz3.vhd)
Sep 30 20:29:07 xcpng-Companyxyz SM: [28403] nfs-on-slave.check(/var/run/sr-mount/xyID2/IDxz4.vhd)
Sep 30 20:29:15 xcpng-Companyxyz SM: [28437] nfs-on-slave.check(/var/run/sr-mount/xyID2/IDxz.vhd)
Sep 30 20:29:17 xcpng-Companyxyz SM: [28466] nfs-on-slave.check(/var/run/sr-mount/xyID2/OLD_IDxz6.vhd)
Sep 30 20:29:19 xcpng-Companyxyz SM: [28473] lock: opening lock file /var/lock/sm/xyID27/vdi
Sep 30 20:29:19 xcpng-Companyxyz SM: [28473] lock: acquired /var/lock/sm/xyID27/vdi
Sep 30 20:29:19 xcpng-Companyxyz SM: [28473] Pause for xyID27
Sep 30 20:29:19 xcpng-Companyxyz SM: [28473] Calling tap pause with minor 8
Sep 30 20:29:19 xcpng-Companyxyz SM: [28473] ['/usr/sbin/tap-ctl', 'pause', '-p', '26306', '-m', '8']

And They are repeated in today's log:

Oct  1 09:50:10 xcpng-xycompany SM: [17232] lock: released /var/lock/sm/xyzID1/vdi
Oct  1 09:50:11 xcpng-xycompany SM: [17241] lock: opening lock file /var/lock/sm/xyzID1/vdi
Oct  1 09:50:11 xcpng-xycompany SM: [17241] lock: acquired /var/lock/sm/xyzID1/vdi
Oct  1 09:50:11 xcpng-xycompany SM: [17241] Unpause for xyzID1
Oct  1 09:50:11 xcpng-xycompany SM: [17241] Realpath: /var/run/sr-mount/xyzID2/xyzID1.vhd
Oct  1 09:50:11 xcpng-xycompany SM: [17241] lock: opening lock file /var/lock/sm/xyzID3/sr
Oct  1 09:50:11 xcpng-xycompany SM: [17241] ['/usr/sbin/td-util', 'query', 'vhd', '-vpfb', '/var/run/sr-mount/xyzID3/xyzID1.vhd']
Oct  1 09:50:11 xcpng-xycompany SM: [17241]   pread SUCCESS
Oct  1 09:50:11 xcpng-xycompany SM: [17241] Calling tap unpause with minor 8
Oct  1 09:50:11 xcpng-xycompany SM: [17241] ['/usr/sbin/tap-ctl', 'unpause', '-p', '26306', '-m', '8', '-a', 'vhd:/var/run/sr-mount/xyzID3/xyzID1.vhd']
Oct  1 09:50:11 xcpng-xycompany SM: [17241]  = 0

But this is still wrong. What can I do with this?

@Danp grep does not return anything

@olivierlambert Yes

Number of disk 200+ was also (and decreased to the above number)

Suddenly fixed, I'll write if I find anything in the log

I also restarted the toolstack on each of our servers.

If this helps: Current version: 5.95.2

@Danp
I'm sorry I'm just now writing back, this is what the interface is giving. I also tried "rescan all disks".

1 of our 5 servers went down and now can't be saved due to VDI Chain error and occasionally restarts vm's.
(The vm's were not stored on the server that failed)
There is one vm that is stuck and I can't delete it, surely it is related.
I read on forum as a temporary solution to copy and migrate the vm, but of course after a few days it will fail again.
We are now going to put a freshly installed one in place of the downed server. I've had this problem for a few weeks now and haven't found a solution to solve it, can anyone help me?

@olivierlambert Thank you

I would like to ask if anyone has experience using Intel Ultra series processors with XCP-ng. Do these processors support XCP-ng, or are there any known issues or special settings to consider? I have not found any information on this. Any information and experience would be of interest.