------- Comment From mranw...@us.ibm.com 2019-08-21 18:53 EDT-------
It was IBM bugzilla status, I'll move it all back.

I took a look at the new bugs - 180734 and 180735.  The first (180734) I
can recreate on my system if I do it exactly (or nearly so) as you do -
the status shows paused (postmigrate) and it's no longer responsive..
With my setup with more options it works fine for me.  I have yet
figured out which option triggers the change for me.

When I use my original options and directly to qemu-system-ppc64 it doesn't 
crash.  It is an invalid migration - going from workaround to broken should 
fail.  I get a similar warning message when I try it - but then the source 
remains active.  Here's what I was originally using:
/usr/bin/qemu-system-ppc64le -m 20480 -smp 
32,maxcpus=32,sockets=4,cores=8,threads=1 -object 
memory-backend-ram,id=ram-node0,size=10737418240 -numa 
node,nodeid=0,cpus=0-7,memdev=ram-node0 -object 
memory-backend-ram,id=ram-node1,size=10737418240 -numa 
node,nodeid=1,cpus=8-15,memdev=ram-node1 -realtime mlock=off -rtc base=utc 
-no-shutdown -boot strict=on -msg timestamp=on -device 
qemu-xhci,id=usb,bus=pci.0 -device spapr-vscsi,id=scsi0,reg=0x2000 -drive 
file=/home/ubuntu/u1804-root.qcow2.snap0.radix0,format=qcow2,if=none,id=drive-virtio-disk0
 -device 
virtio-blk-pci,scsi=off,bus=pci.0,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1,iommu_platform=off,disable-legacy=on
 -drive 
file=/home/ubuntu/secondary.qcow2,format=qcow2,if=none,id=drive-virtio-disk1 
-device 
virtio-blk-pci,scsi=off,bus=pci.0,drive=drive-virtio-disk1,id=virtio-disk1 
-drive if=none,id=drive-scsi0-0-0-0,readonly=on -device 
scsi-cd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0
 -netdev user,id=hostnet0,hostfwd=tcp:127.0.0.1:2222-:22 -device 
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:66:32:28,bus=pci.0 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0 -monitor 
unix:/tmp/mdroth-vm0-hmp.sock,server,nowait -nographic -vnc none -L 
/usr/share/qemu/ -machine 
pseries-bionic-sxxm,accel=kvm,usb=off,dump-guest-core=off,max-cpu-compat=power9,cap-ibs=workaround

The second (180735) is a feature request.

It seems like we should move forward with the SRU now and fix bug 180734
as there becomes a fix available - it doesn't look like there is one
now.

Suraj/Satheesh - you agree?

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1832622

Title:
  QEMU -  count cache flush Spectre v2 mitigation (CVE) (required for
  POWER9 DD2.3)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-power-systems/+bug/1832622/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to