This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1869763
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: bionic
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1869763
Title:
Huawei Kunpeng 920 arm64 machine KVM guest frequently crash
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hardware spec: 64 core 64 G ram arm64
OS & kernel version: Ubuntu 18.04.4 LTS, 4.15.0-91-generic
`virt-host-validate qemu` output:
QEMU: Checking if device /dev/kvm exists : PASS
QEMU: Checking if device /dev/kvm is accessible : PASS
QEMU: Checking if device /dev/vhost-net exists : PASS
QEMU: Checking if device /dev/net/tun exists : PASS
QEMU: Checking for cgroup 'memory' controller support : PASS
QEMU: Checking for cgroup 'memory' controller mount-point : PASS
QEMU: Checking for cgroup 'cpu' controller support : PASS
QEMU: Checking for cgroup 'cpu' controller mount-point : PASS
QEMU: Checking for cgroup 'cpuacct' controller support : PASS
QEMU: Checking for cgroup 'cpuacct' controller mount-point : PASS
QEMU: Checking for cgroup 'cpuset' controller support : PASS
QEMU: Checking for cgroup 'cpuset' controller mount-point : PASS
QEMU: Checking for cgroup 'devices' controller support : PASS
QEMU: Checking for cgroup 'devices' controller mount-point : PASS
QEMU: Checking for cgroup 'blkio' controller support : PASS
QEMU: Checking for cgroup 'blkio' controller mount-point : PASS
WARN (Unknown if this platform has IOMMU support)
libvirt version: 4.0.0-1ubuntu8.14
qemu version: 1:2.11+dfsg-1ubuntu7.23 arm64
guest vm kernel version: 4.15.0-64-generic aarch64
dmesg log:
kvm [49132]: Unexpected L2 read permission error
libvirt log:
ubuntu libvirtd: 2020-03-20 03:04.474+0000: 42934: warning :
qemuDomainObjTaint:5602 : Domain id=38 name='vm-157'
uuid=3d447d79-c2a1-4351-b607-6698a2cd6c5f is tainted: host-cpu
When "Unexpected L2 read permission error" this error occured, one of guest
machines will become "paused" state, need to `virsh reset PAUSED_VM_NAME` to
reset then start it. Those guest vm hang/crash occured very frequently,
sometimes several times per hour.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869763/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
