@stormi Microcode updated on affected Gen11 i7. Running normally.

@gduperrey I jumped in all the way by mistake... I updated a wrong host, so I just did them all. Older AMD, Intel E3/E5, NUC11, etc. So far, so good. Add/migrate/backup/etc VMs are working as usual. Good for guest tools too, but mine are mostly Debian 7-11. Stuff is as usual so far.

I agree and I'll say it again, Thanks! It's not just Linux/Xen stuff. It is XCP-ng and XO that make everything work as a cohesive vertical open-source solution (some nice buzz words). Thanks to the Vates team and community that have built and support it. I look forward to ongoing continuous improvement and innovation!

@bleader Installed and running.

@bleader Updates running on several old and new intel machines (including microcode update). Working fine so far. Rolling Pool Reboot is a helpful feature.

@bleader I installed it on a bunch of busy hosts. All are fine, but none used PCI passthrough. The Rolling Pool Reboot in XO was very helpful.

@julien-f @olivierlambert

Thanks for the ability to delete XO task logs feature! (XO commit f6e6e)

@gduperrey I have several hosts updated and running. I'm happy to see 8.3 updates on parity with 8.2.

@stormi Installed on several test and pre-production machines.

@bleader I installed it on many 8.2 machines. On one I did get a warning:

  Cleanup    : xen-libs-4.13.5-9.40.3.xcpng8.2.x86_64                     14/14
warning: %posttrans(microcode_ctl-2:2.1-26.xs29.5.xcpng8.2.x86_64) scriptlet failed, exit status 1
Non-fatal POSTTRANS scriptlet failure in rpm package 2:microcode_ctl-2.1-26.xs29.5.xcpng8.2.x86_64
  Verifying  : xcp-ng-release-8.2.1-13.x86_64                              1/14

But it did not seem to have any effect. Nothing extra in the yum.log

@aprado The onboard "serial port" is not a PCI device. You could try adding a USB serial port or a PCIe card with a serial port.

@PGibson You see the GUI on the VM console because that's the way you installed Debian. If you don't install a GUI or just disable it then you will have just a simple VGA text console. This might help.

@jgdub Are you using XCP 8.3 or 8.2.1?

@Mt_KEGan While my driver package uses the same name with an updated version, it is not an official XCP/Vates package. I have submitted an updated driver package to set the safer defaults. It's the same code with just different default settings.

@gduperrey Updates installed and running but I don't have 8.3 in production yet...

@gduperrey Installed and working on a HA pool and other hosts, no XOSTOR.

@FrankAtHome The server is a HP DL360 G8 Intel Xeon CPU E5-2680v2.

Same hardware/bios config as the other servers running XCP 8.2, so, nothing special setup. I'm not sure if it even has C5/C6 states available. It's an enterprise server, you don't want it to sleep.

Here's the output from a desktop HP Elitedesk 800 G3 Intel Core i7-7700 running XCP 8.3, again, nothing special setup. Now with more C-states!

# xenpm get-cpuidle-states 0
All C-states allowed

cpu id               : 0
total C-states       : 7
idle time(ms)        : 276484
C0                   : transition [              277556]
                       residency  [               16869 ms]
C1                   : transition [              197012]
                       residency  [                9993 ms]
C2                   : transition [               23581]
                       residency  [               11105 ms]
C3                   : transition [                2943]
                       residency  [                2094 ms]
C4                   : transition [                8525]
                       residency  [                8576 ms]
C5                   : transition [                5493]
                       residency  [               17883 ms]
C6                   : transition [               40001]
                       residency  [              224993 ms]
cc3                  : [                1946 ms]
cc6                  : [                7945 ms]
cc7                  : [              238808 ms]

@FrankAtHome Here's output on one of my XCP 8.3 servers that shows C0 to C4:

# xenpm get-cpuidle-states 0
All C-states allowed

cpu id               : 0
total C-states       : 5
idle time(ms)        : 1854395327
C0                   : transition [           827366196]
                       residency  [            26328742 ms]
C1                   : transition [           464493378]
                       residency  [            40172860 ms]
C2                   : transition [            97685021]
                       residency  [            43104018 ms]
C3                   : transition [            13728657]
                       residency  [            12613910 ms]
C4                   : transition [           251459140]
                       residency  [          1755416981 ms]
pc2                  : [           462155589 ms]
pc3                  : [            17985256 ms]
pc6                  : [           781427622 ms]
cc3                  : [            10502718 ms]
cc6                  : [          1685502286 ms]

@bleader I'll guess it's a VM guest process to process memory issue as the Xen patch is just for documentation of the issue.

The patch to Xen is simply a documentation update to clarify that an OS author
might not want to use a hypercall page.

@Double-e If you serial ports show up as a PCI or USB device then you can pass it to a VM. Most normal on-board serial ports can not be directly used in a VM.

Use lspci and lsusb to check your devices.