Updates announcements and testing
@stormi No regressions so far on my test pool with both sets of test updates installed.
@stormi A bit late to the party again (must try harder ) as I have been moving my rack and my test host was not set up and main pool down to running on 2 hosts..... taking one more offline would make Ceph very unhappy!!!....
Anyway, both test updates applied to my test host and I haven't managed to break anything yet!!! So looks good from my point of view.
Many thanks for the prompt feedback on the security updates everyone!
I've pushed the release button (well, actually I ran
koji move v8.2-testing v8.2-updates xen-4.13.1-9.11.1.xcpng8.2 microcode_ctl-2.1-26.xs15.xcpng8.2. Don't try this at home.), and the security updates will be available within 5 minutes, identical to what you have tested.
I have not released the rest of the update train that is being tested (see this post), so let the testing continue!
Security and bugfix updates to be released soon, please test!
So, previously some of you had tested a batch of updates (see https://xcp-ng.org/forum/post/39925).
It is going to be released very soon, along with a new security update and some other changes.
What changed sinced the last tests
- QEMU was updated to fix security issues (cf. https://support.citrix.com/article/CTX316325)
- The guest tools ISO was updated to fix a small display issue (replaced
Virtual Machinein the initscript metadata)
smwas updated again to fix a regression in the previous update candidate
You can still test the new Secure Boot support, but it won't be released in the next batch of updates. We still have work to do to fix some issues, the main one being that the XCP-ng guest drivers for Windows need to be re-signed so that Windows accepts them when SB is enabled. Without this, SB + XCP-ng guest tools = unbootable VM. If you don't enable secure boot on them, the
uefistoredupdate is not supposed to change anything for your UEFI VMs.
Reminder of the previous unreleased changes
- The updated
uefistoredbrings guest SecureBoot support. The number one priority it to check that UEFI VMs still work well in various situations (including backups, restore from older backups, fresh install after the update was installed...). For SecureBoot support itself, usage detailed at https://github.com/xcp-ng/xcp-ng-org/pull/85/files currently until we merge the instructions to the official docs. We'll create a dedicated thread to discuss this feature.
- Updated XAPI brings the latest fixes from Citrix hotfix XS82E020.
- Updated storage manager (
sm) brings the latest fixes from Citrix hotfix XS82E023 as well as a fix for a minor regression this hotfix brought (detected by @ronan-a and reported upstream with a patch proposal), an experimental MooseFS driver contributed by the MooseFS developers (not enabled by default), and a fix for NFS SR creation with some QNAP devices (contributed upstream, to the
smproject, but still waiting for review after ~4 months).
xsconsolefixes DNS settings management: when changed from the text UI, DNS settings were not saved to the XAPI and were thus lost after a reboot (not contributed upstream], because there's no public git repository for XSConsole unfortunately).
- Updated blktap fixes a rare crash in specific situations.
- Updated guest tools ISO brings support for new OSes and versions, such as CentoS 8.3+ & Stream, AlmaLinux, Rocky Linux, fixed installation on FreePBX... Those have already been tested in this thread but more tests are always welcome.
How to update (XCP-ng 8.2 only)
yum update blktap forkexecd message-switch qemu rrdd-plugins sm sm-rawhba xapi-core xapi-tests xapi-xe xcp-ng-pv-tools xcp-ng-release xcp-ng-release-config xcp-ng-release-presets xenopsd xenopsd-cli xenopsd-xc xsconsole --enablerepo=xcp-ng-testing
If you also want to test the secure boot support (won't be released with the rest yet):
yum update uefistored --enablerepo=xcp-ng-testing
What to test
The main goal of the testing phase is to avoid regressions, so test whatever you want. The closer to your actual use of XCP-ng, the better.
If interested, you can also test that what we claim we have fixed is actually fixed, and have a go at guest Secure Boot.
Test window before official release of the updates
Official release due on monday.
gskger last edited by
@stormi Again more a regression test for the basic things. Tested Debian and Ubuntu VMs (create, live migrate with/-out guest tools (now at 7.20.0-9), start/stop/reboot, snapshot with/-out RAM and revert, storage migrate from/to shared and local SR). Imported Centos and Ubuntu VMs and restored a Windows 10 and a Debian VM from backup. No issues so far. Nice work.
gskger last edited by gskger
@stormi what is the best strategy to revert a host with testing updates installed back to the standard, non-testing status? Just wondering, if there is a more simple approach than doing a clean install / revert to backup.
yum historycommand can be handy to rollback to earlier versions of RPMs that are still available on repositories.
yum downgrade same-list-of-RPMs-that-you-updatedcan also work most of the time.
Be aware though that RPM transactions are not always meant to be reversible. Replacing files is one thing, but the scriptlets that run after an update are almost never tested backwards. I don't foresee any specific issue, it's a general warning.
Did some Testing over the Weekend too.
Setup with 2 Hosts in a Pool and shared iSCSI-LMV Storage with multipath 8 paths per LUN.
Anything seems to work fine (migrate/import/cross-pool-migrate/snapshots/backups).
Even our longtime Problem (snapshots taking much too long) is getting much better (still not good, but much better).
The update was released yesterday: https://xcp-ng.org/blog/2021/06/28/summer-security-and-bugfix-updates/
Again, a lot of thanks for the feedback.
As I said earlier, the update for
uefistored, which brings guest secure boot support, was not included yet.
New installation ISO for XCP-ng 8.2
I opened a dedicated thread. Meet you there for the tests.
A bugfix kernel update available for testing
Based on Citrix's hotfix XS82E030, here's a bugfix kernel update. I don't think it will change much for most hosts, except in some specific cases.
- Previous kernel updates (that fixed network performance issues for FreeBSD and sometimes other VMs), may have reduced the performance in some situation according to Citrix. Based on the patches, it looks like it's related to IRQ affinity and cross-domain networking. Here's the patch: https://github.com/xcp-ng-rpms/kernel/blob/master/SOURCES/0001-xen-events-fix-setting-irq-affinity.patch
- Tools that need to make the
iopermsyscall were crashing on dom0. For example Supermicro Update Manager (SUM). This should fix it.
- An additional dependency was added to the
perfRPM (not installed by default) to make it able to do backtraces when you try to run it on binaries in dom0.
- A patch fixes CVE-2021-29154 was added. It's not considered a security update because it does not fix an exploitable vulnerability. It's extra defence in depth.
How to update (XCP-ng 8.2 only)
yum update kernel --enablerepo=xcp-ng-testing
Version that should be installed:
What to test
Installation of the update, normal use, no obvious regressions...
Plus the changes described above if you're in a situation that allows it.
Test window before release
None defined at the moment. As it's not a security update, I'll wait for more updates to be ready before I push the next train officially. But feedback is always useful as soon as it can be provided.
gskger last edited by
@stormi A lazy sunday morning, some coffee, a notebook and time for testing. Updated my two host playlab (DELL Optiplex 9010, 8.2 fully patched) and tested Debian VMs and Windows 10 VMs (create, live migrate with/-out guest tools, start/stop/reboot, snapshot with/-out RAM and revert, online-/offline storage migrate from/to shared and local SR). Restored a Windows 10 and a Debian VM from backup. All good so far for this regression test.