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@john.c The new XenPlus guest agent emits relevant warnings/errors in the Application event log whenever a failure happens somewhere in its communication with the hypervisor. This was not documented in the release, but it's much improved over the previous 9.1.200 guest agent. Right now events aren't assigned IDs yet (but you can filter by source)
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I've updated from 9.1.200.0 to 9.2.350.0 on a Windows Server 2022 VM and encountered this during the update.
I clicked OK:
I clicked OK:
I clicked on Finish and after that on Yes to restart the VM.
Now, after the update, every time I log out a user session, I see an event by XenPlus being logged to the event log:
Category: XenPlus.Features.ClipboardFeature EventId: 0 Failed to serve client 6 Exception: System.IO.EndOfStreamException: IO_EOF_ReadBeyondEOF at System.IO.Stream.<ReadAtLeastAsyncCore>d__48.MoveNext() + 0x1f2 --- End of stack trace from previous location --- at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16) + 0x23 at XenPlus.Features.ClipboardFeature.<ServeClientLoopAsync>d__26.MoveNext() + 0xb0d --- End of stack trace from previous location --- at XenPlus.Features.ClipboardFeature.<ServeClientAsync>d__27.MoveNext() + 0x45d -
@yomeyo It's a client shutdown being misreported as a client error. I'll fix this in the next release.
The warning on upgrade should be harmless and you can simply close the application/click OK as you've done.
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@dinhngtu When creating GPOs if you have an non-policy setting for all users in the settings area for the agent config. The policy based registry settings can go into “Software\Policies”, for the appropriate HKEY and keys.
In which case the policy based registry entries supersede the non-policy ones, when considering also the HKLM vs HKU and HKCU cascade.
Also a disabling of user configuration of the managed setting(s) along with display of a message like “At least some of these settings are managed by the organisation”.
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@dinhngtu Just wanted to pass along some feedback from trialing the newest version (9.2.350) -- in case it's helpful.
When comparing to the previous version (9.1.200 -- and earlier versions as well) on Windows 11 Pro VM (with latest updates), this new version results in noticeably slower VM restart and shutdown times (at least when monitored via xenadmin [on Windows] and xenadminqt [on Linux]).
... Just remembered I updated XCP-ng at the same time to the latest iteration, perhaps the slowdown may be related to that.
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@clip This often happens with Driver Verifier enabled, what do
verifier /querysettingsandverifier /querysay? -
@dinhngtu Further trialing showed this issue is confined to one host and all its VMs (including Linux ones) - please consider this issue resolved and not related to Windows PV tools (incidentally, in this particular case there were no verified drivers enabled and no drivers currently verified on the Windows VMs). Apologies for mistaking this as a Windows PV tools issue.
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Has anyone had their antivirus go crazy with this version? I am getting tons of messages saying this file has a virus:
"C:\Program Files\XCP-ng\Windows PV Drivers\xenplus\xenplus.exe"
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@archw Which AV is causing the warning, can you report it as a false positive?
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@dinhngtu
Something called "Elpha Secure" ...none of our other antivirus shows it being bad but I wanted to ask around before I unflagged it.
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