Development

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  Great projects have great documentation. Is XCP-ng a great project?
  • stormi  

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  Yes, as long as they are clearly identified as third party videos, I think they would be a useful addition.
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  Windows 10 (1803) - crash with installed guest tools
  • borzel  

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  @enes-selcuk I didn't get your point. Do you have a problem right now or did you just want to give advice to other people? I thought your were in trouble (because I did pre-release the XCP-ng PV-Tools, I basically know this stuff (a bit))
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  FIX to XCP-ng
  • _danielgurgel  

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  Before applying the patch, in a new pool (during the CH8 update process to XCP8), when moving any VM to the updated host I received the error below. After installing the patch on the master host and restarting the toolstack on the host master and the source host, we no longer notice error, with the migrate process successfully completing. The error condition was the failed shutdown of the VM in the live migrate process. So I think the patch made available actually solves the problem in question. (for VMs with and without network interfaces) Nov 30 12:54:48 SECH82 xapi: [error|SECH82|946189 ||backtrace] Async.VM.pool_migrate R:29b4b31d74de failed with exception Server_error(INTERNAL_ERROR, [ xenopsd internal error: Device_common.QMP_Error(135, "{\"error\":{\"class\":\"GenericError\",\"desc\":\"Unable to open /dev/fdset/0: No such file or directory\",\"data\":{}},\"id\":\"qmp-000029-135\"}") ]) Nov 30 12:54:48 SECH82 xapi: [error|SECH82|946189 ||backtrace] Raised Server_error(INTERNAL_ERROR, [ xenopsd internal error: Device_common.QMP_Error(135, "{\"error\":{\"class\":\"GenericError\",\"desc\":\"Unable to open /dev/fdset/0: No such file or directory\",\"data\":{}},\"id\":\"qmp-000029-135\"}") ]) Nov 30 12:54:48 SECH82 xapi: [error|SECH82|946189 ||backtrace] 1/1 xapi @ SECH82 Raised at file (Thread 946189 has no backtrace table. Was with_backtraces called?, line 0 Nov 30 12:54:48 SECH82 xapi: [error|SECH82|946189 ||backtrace]
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  XCP 8.1 with Kernel 5.3 :)
  • maxcuttins  

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  @petr-bena said in XCP 8.1 with Kernel 5.3 : @maxcuttins current kernel supports RBD, which feature are you missing? I am using kernel RBD and it works OK "Exclusive Lock" is not included in the 4.19 kernel. So it is for "object-map" and "fast-diff".
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  Windows Server 2019 XCP-ng.Windows.PV.Drivers.8.2.2.200-rc1 after install fail to boot
  • snigy  

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  @Biggen no,
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  Cloud-init issues when doing changes through VM creation portal.
  • tavmar  

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  Can you try with XO Hub template of CentOS 8? This will we'll be sure it's not the template
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  vGPU - which graphics card supported?
  vgpu • • chirag11  

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  To complement: you may want to follow this github issue: https://github.com/xcp-ng/xcp/issues/200 olivierlambert created this issue in xcp-ng/xcp open Build AMD MxGPU and package them #200
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  Windows Server 2016 & 2019 freezing on multiple hosts
  • michael  

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  FWIW -- I had a similar problem with VMs going randomly down -- it wasn't windows but various BSD and Linux VM's. Sometimes they would run a few days, other times they would lock up every other day. Logs didn't help because when the VM locked, logs were not written. I even had the xcp-ng installation lock a few times, although it was usually on of the VMs. I started searching for faulty hardware and eventually SMART tested all the drives and mem86 the RAM. Turns out I had some bad RAM modules which I later RMA'd. With new RAM (after after thoroughly testing it), I haven't had any lock ups. I'm not sure this will help you at all.
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  Is it possible to see container
  • Bahman  

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  So in VMs then Sure, it's doable!
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  SMAPIv3 - Feedback & Bug reports
  • Marc.pezin  

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  Hmm okay so it's not written directly. We'll see soon enough
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  XCP-ng Windows PV Drivers 8.2.2
  • borzel  

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  Should I still just get a different NIC card?
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  CEPH FS Storage Driver
  • r1  

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  Looks like variable declaration issue. I had it working for XCP-NG 7.6... Give me some time to fix this and make it working for 8.0
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  Video Card access in VM
  • okynnor  

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  Thanks you Oliver!
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  Kubernetes autoscaler xen api/XO api
  • yctn  

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  XCP-ng 8.0.0 xsconsole doesn't show Host Performance Information nor VM's CPU and Memory Usage
  xcp-ng 8.0 xsconsole • • MajorTom  

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  @stormi said in XCP-ng 8.0.0 xsconsole doesn't show Host Performance Information nor VM's CPU and Memory Usage: I wanted to have a look at the commit history for xsconsole but the github repository at https://github.com/xenserver/xsconsole Thank you, @stormi I've opened a bug report at bugs.xenserver.org about it Specifically: https://bugs.xenserver.org/browse/XSO-961 . Now you may want to open a bug report there about the missing information in the console. This could allow to know if it's a bug or a "feature". Good idea. My bug report: https://bugs.xenserver.org/browse/XSO-962
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  Replaced Tianocore UEFI Logo with XCP-ng Logo
  • gangsterrapper22  

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  Ceph (qemu-dp) in XCP-ng 7.6
  • bc-23  

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  I did contribute on the RBDSR plugin (v1). Creating a LVMoRBD would be easy. The other good point using LVM over RBD is the native fsfreeze when doing snaps and co which is not the case with rbd snaps. VM has to be paused (which issues fsfreeze) before rbd snaps. But LVMoRBD would put all VM on 1 single RBD. Difficult to maintain regarding dev size. Best would be qemu-rbd. I did use it like 10 years ago over native xen and it did work fine (ensures fsfreeze etc). There were a tech preview using libvirt with xenserver. Didn't test if it works on upstream version 8.
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  security breach MDS processor XEON
  • araxy  

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  @araxy said in security breach MDS processor XEON: @olivierlambert said in security breach MDS processor XEON: hyper-threading Disabling hyper-threading is losing half the power of the server ... If people have access to VM but not root, is it good? Do You have logs for CPU usage? In my VM environment the CPU utilization is not exceeding 25% for all the time. IDK how it looks on Your site but if I would disable HT I think it wouldn't be even noticeably in a matter of performance of VM's.
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  USB passthrough test reports in 7.5RC1
  • Aimdev  

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  @kcah427 Thanks for sharing your solution. I end up using a Raspberry Pi as a Socat host and passing the USB Zigbee stick over ethernet to the VM. Not ideal but it works.
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  SOLVED Unable to start VMs
  • okynnor  

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  @borzel Indeed, the command "xe vm-cd-eject --multiple" worked! All VMs now correctly auto boot on reboot/startup!