[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
** Changed in: ubuntu-z-systems Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
This bug was fixed in the package libvirt - 6.0.0-0ubuntu3 --- libvirt (6.0.0-0ubuntu3) focal; urgency=medium * rebuild against libxen-dev 4.11.3 (no change needed) * d/p/ubuntu-aa/virt-aa-helper-Add-support-for-smartcard-host-certif.patch: allow emulation of smartcard via host certificates * d/p/ubuntu/lp-1861125-*: fix non host-model migrations from old machine types (LP: #1861125) * d/p/ubuntu-aa/apparmor-allow-to-call-vhost-user-gpu.patch: do not apparmor block vhost-user-gpu usage -- Christian Ehrhardt Wed, 12 Feb 2020 14:20:08 +0100 ** Changed in: libvirt (Ubuntu) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
** Changed in: ubuntu-z-systems Status: Triaged => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
** Changed in: libvirt (Ubuntu) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
** Merge proposal linked: https://code.launchpad.net/~paelzer/ubuntu/+source/libvirt/+git/libvirt/+merge/379048 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
Launchpad has imported 12 comments from the remote bug at https://bugzilla.redhat.com/show_bug.cgi?id=1795651. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2020-01-28T14:53:06+00:00 paelzer wrote: Description of problem: Libvirt defaults to model an s390x CPU but some older machine types are unable to consume that therefore starting old XML guests or migrations to a old->new system fail. Version-Release number of selected component (if applicable): - libvirt 6.0 - qemu 4.2 How reproducible: 100% Steps to Reproduce: 1. define a simple guest XML with old machine type $ cat breakme.xml breakme 524288 hvm $ virsh define breakme.xml Domain breakme defined from breakme.xml 2. check the cpu model it got I get cpu + old-type: root@testkvm-focal-to:~# virsh dumpxml breakme | grep cpu 3. That breaks on start: # virsh start breakme error: Failed to start domain breakme error: internal error: qemu unexpectedly closed the monitor: 2020-01-28T14:37:27.477232Z qemu-system-s390x: CPU models are not available: KVM doesn't support CPU models Actual results: Fails to start the guest: qemu-system-s390x: CPU models are not available: KVM doesn't support CPU models Reason: It creates a commandline that can't work. Expected results: Guest with old machine type can be started-on and/or migrated-to new systems. Additional info: I found this while testing migration across releases. If migrating a guest that was initially started on Xenial (qemu 2.5) to a new virtualization stack (qemu 4.2 libvirt 6.0) it fails. The reason is that the old system has defined the machine type of the time e.g. machine type: s390-ccw-virtio-2.5 The matching commandline is part: -machine s390-ccw-virtio-2.5,accel=kvm,usb=off -cpu (not present here) But on the migration to the new stack this becomes: -machine s390-ccw-virtio-2.5,accel=kvm,usb=off (kept from the source of the migration) -cpu z13-base,aen=on,aefsi=on,... (modelled on the target) The problem is that s390x prior to qemu 2.8 had no cpu modelling. Therefore it fails with: qemu-system-s390x: CPU models are not available: KVM doesn't support CPU models Source XML: x-guest2 c4545c20-5415-4f2c-86c7-df77eab1f6bb 524288 524288 1 /machine hvm destroy restart destroy /usr/bin/qemu-system-s390x libvirt-c4545c20-5415-4f2c-86c7-df77eab1f6bb libvirt-c4545c20-5415-4f2c-86c7-df77eab1f6bb Source log/commandline: 2020-01-28 13:58:28.719+: starting up libvirt version: 1.3.1, package: 1ubuntu10.29 (Matthew Ruffell Thu, 31 Oct 2019 10:52:41 +1300), qemu version: 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.42), hostname: testkvm-xenial-from LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin QEMU_AUDIO_DRV=none /usr/bin/qemu-system-s390x -name x-guest2 -S -machine s390-ccw-virtio-2.5,accel=kvm,usb=off -m 512 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid c4545c20-5415-4f2c-86c7-df77eab1f6bb -nographic -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-x-guest2/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -drive file=/var/lib/uvtool/libvirt/images/x-guest2.qcow,format=qcow2,if=none,id=drive-virtio-disk0 -device virtio-blk-ccw,scsi=off,devno=fe.0.,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/var/lib/uvtool/libvirt/images/x-guest2-ds.qcow,format=raw,if=none,id=drive-virtio-disk1 -device virtio-blk-ccw,scsi=off,devno=fe.0.0001,drive=drive-virtio-disk1,id=virtio-disk1 -netdev tap,fd=25,id=hostnet0 -device virtio-net-ccw,netdev=hostnet0,id=net0,mac=52:54:00:39:e7:fb,devno=fe.0.0002 -chardev pty,id=charconsole0 -device sclpconsole,chardev=charconsole0,id=console0 -device virtio-balloon-ccw,id=balloon0,devno=fe.0.0003 -msg timestamp=on char device redirected to /dev/pts/1 (label charconsole0) Target log/commandline: 2020-01-28 13:59:04.396+: starting up libvirt version: 6.0.0, package: 0ubuntu1~ppa2 (Christian Ehrhardt Mon, 13 Jan 2020 13:14:14 +0100), qemu version: 4.2.0Debian 1:4.2-1ubuntu1~ppa4, kernel: 5.4.0-9-generic, hostname: testkvm-focal-to LC_ALL=C \ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin \ HOME=/var/lib/libvirt/qemu/domain-3-x-guest2 \ XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-3-x-guest2/.local/share \
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
Tests with the fix worked -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
FYI suggested fixes where pushed to the ML and I'm planning to test those. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
Hi Colin, this host runs on 5.4.0-9-generic Full line: Linux s1lp05 5.4.0-9-generic #12-Ubuntu SMP Mon Dec 16 22:31:38 UTC 2019 s390x s390x s390x GNU/Linux If it needs a newer kernel commits in regard to this issue please let me know so that I can flag them for the kernel team. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
** Tags added: architecture-s39064 bugnameltc-183486 severity-high targetmilestone-inin2004 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
Note: "Migrating through" like qemu 2.5 -> 2.11 -> 4.2 also doesn't work (like a normal upgrade path) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
Reported to upstream as requested by the s390x people. => https://bugzilla.redhat.com/show_bug.cgi?id=1795651 ** Bug watch added: Red Hat Bugzilla #1795651 https://bugzilla.redhat.com/show_bug.cgi?id=1795651 ** Also affects: libvirt via https://bugzilla.redhat.com/show_bug.cgi?id=1795651 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1861125] Re: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F)
** Also affects: ubuntu-z-systems Importance: Undecided Status: New ** Changed in: ubuntu-z-systems Status: New => Triaged ** Changed in: ubuntu-z-systems Importance: Undecided => High ** Changed in: ubuntu-z-systems Assignee: (unassigned) => bugproxy (bugproxy) ** Tags added: reverse-proxy-bugzilla s390x -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861125 Title: s390x can't migrate pre qemu 2.8 to qemu4.2/libvirt6.0 (X->F) To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1861125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
