@acebmxer What I'm up to is the following: Two separate VMs, each with one of these video cards and an 8-port PCIe serial controller assigned. I have 8 monitors for the setup; 4 per VM. The VMs will be used to run software which controls radio receivers and each display will act as a heads-up for a different instance of the software. I run this particular configuration with a Type 1 hypervisor on smaller systems but this is the first time deploying on larger-scale bare metal. As further experimentation I put the serial cards in the server and verified via lspci they were there. I ran xen-pciback.hide against each adapter by itself then against all three (including video card, per docs online) and they appear assignable when queried from the hypervisor's local command prompt. But the new cards (serial) don't appear in the drop-down of the Attach PCI section - even after a server reboot. A somewhat related question on keyboard/mouse pass-through: One has to have a separate mouse/keyboard for EACH VM running on the system in order for this to work properly, I assume? By separate, not the one used to access the hypervisor console itself.

I get this error with each metadata backup run, but every time it fail on different pool. Only 1 failed pool at once. [image: 1782727042952-aa7af767-9150-4e99-a483-5d02524678bb-image.jpeg]

@poddingue Thanks for the reply. I have been checking the source code of the Netbox plugin over the weekend and added the necessary code to enable the virtual disk sync. In Netbox itself, you do need to add the correct permission for it to work. Will do some more testing during the week, and create a pull-request once I'm satisfied with the result. Up to the Vates if they want to merge it into the main branch. Thank you for your reply!

@andibing said: I'm seeing this on XOA: xoa@xoa:~$ sudo xoa-updater --upgrade ✖ { message: 'missing string at offset 151' } xoa@xoa:~$ Unless the sun has got to me, I don't seen any other references to this error. And Gemini was confused too! Any thoughts? Can you please run “df -h” to start? If either / or /tmp/xoa-updater are low on space please increase disk space or run a clean up. The disk space on the VM and/or the SR may be too low, for the update to succeed. The XOA update metadata cache may have become corrupted and need to be cleared, before re-attempting the update. Checking the logs will help to determine if that’s the case.

@TeddyAstie I haven't cleared the PCI pass-through masking in Dom0, but below is the same lspci command from Dom0. I'm pretty sure I'm running the latest 8.3 with all the current patches. This could just be a kernel issue? lspci -vvxxxx -s 0000:83:00.0 83:00.0 VGA compatible controller: Intel Corporation Device e212 (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Device 1114 Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Region 0: Memory at 20002000000 (64-bit, prefetchable) [disabled] [size=16M] Region 2: Memory at 1f800000000 (64-bit, prefetchable) [disabled] [size=16G] Expansion ROM at f7c00000 [disabled] [size=2M] Capabilities: [40] Vendor Specific Information: Len=0c <?> Capabilities: [70] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported- RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 256 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range B, TimeoutDis+, LTR+, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [ac] MSI: Enable- Count=1/1 Maskable+ 64bit+ Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [d0] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [100 v1] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 0 ARICtl: MFVC- ACS-, Function Group: 0 Capabilities: [110 v1] #00 Capabilities: [200 v1] Address Translation Service (ATS) ATSCap: Invalidate Queue Depth: 00 ATSCtl: Enable-, Smallest Translation Unit: 00 Capabilities: [420 v1] #15 Capabilities: [220 v1] #24 Capabilities: [320 v1] Single Root I/O Virtualization (SR-IOV) IOVCap: Migration-, Interrupt Message Number: 000 IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy+ IOVSta: Migration- Initial VFs: 2, Total VFs: 2, Number of VFs: 0, Function Dependency Link: 00 VF offset: 1, stride: 1, Device ID: e212 Supported Page Size: 00000553, System Page Size: 00000001 Region 0: Memory at 0000020000000000 (64-bit, prefetchable) Region 2: Memory at 000001fc00000000 (64-bit, prefetchable) VF Migration: offset: 00000000, BIR: 0 Capabilities: [400 v1] Latency Tolerance Reporting Max snoop latency: 0ns Max no snoop latency: 0ns Kernel driver in use: pciback 00: 86 80 12 e2 00 00 10 00 00 00 00 03 10 00 00 00 10: 0c 00 00 02 00 02 00 00 0c 00 00 00 f8 01 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 14 11 30: 00 00 c0 f7 40 00 00 00 00 00 00 00 ff 00 00 00 40: 09 70 0c 01 0b 00 00 00 00 00 00 00 00 00 00 00 50: c0 f9 00 00 00 00 00 00 00 40 00 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 10 ac 02 00 e1 8f 00 10 37 29 00 00 11 0c 40 00 80: 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 12 08 13 00 00 10 00 00 02 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 05 d0 80 01 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 01 00 03 48 08 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 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@olivierlambert Thanks for being so transparent about this. I suspect just updating that error message should be helpful enough. I was really struggling yesterday as I couldn’t figure out why my test plan was failing. Your suggestions did indeed work. In my case just disabling HA briefly did the trick

For your storage question, it's fully explained in the doc: https://docs.xcp-ng.org/storage/#-how-to-modify-an-existing-sr-connection And yes, it's planned to get the complete error visible in XO, sadly, it's not "obvious" since the error message isn't returned by XAPI when you try to start but by another method we need to call after it fails ("assert can be started here" from the top of my head). Let me ping @julienXOvates

Well you both just made my Friday! I can follow directions after all!

Evening @pierrebrunet My bad. I am now on commit b440f and the issue persist. I have written you a message with the link to the file. Regards, Marc

@yannsionneau Hi, is June still the target for the iso? Thanks

@niko thanks, that would help a ton!

mid 2026: you can't add a ipv6 address via XOA (XOA5) because the gui lacs the field for the v6 gateway-address XOA6 lacks feature to configure ips of the host the configuration of ipv6 (static) vie the "gui" on the host seems not be implemented yet (or i am missing something critical) command line configuration inside dom0 of the host is afaik not supported ? Some point looks like minor issues. it would be great to "address" pun intendet that as well

@Danp said: Smart Reboot option found on the host's Advanced tab does what you are asking Very nice!

Here is the log from when xen04 last crashed xen04-jun12-journalctl-crash-summary.txt

@Pilow pretty much

@olivierlambert said: I'm not sure it's a great idea, because even 64 hosts is huge in terms of VMs and fallout if you have a problem on your pool DB. Even if you drastically improve the current mechanism, the impact of a problem pool wide is far bigger with 64 hosts than 24 for example. It's more than purely tech, it's also a tech design/choice. Exactly, the failure domain just grows exponentially when going beyond a certain collective pool size. I was doing some more research and I found a few possible choices that Tesco may have moved too, but don't want to detract from this forum here.