We didn't have repro steps; customers encounter this in some rate. So we
can't verify the commit.
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https://bugs.launchpad.net/bugs/1981658
Title:
BUG: kernel NULL
we also see this issue on azure ubuntu 1804, kernel version is
5.4.0-1086-azure
[ 823.785727] BUG: kernel NULL pointer dereference, address: 0008
[ 823.791661] #PF: supervisor read access in kernel mode
[ 823.791661] #PF: error_code(0x) - not-present page
[ 823.798898] PGD 0
below kernels on azure have this issue. please hold on the new images which
contain these kernel releases. thanks.
focal/linux-azure-5.13: 5.13.0-1026-azure
focal/linux-azure-5.15: 5.15.0-1008-azure
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Packages, which is
generic/430 still hung on ubuntu 18.04 on azure, kernel version is
5.4.0-1055-azure, file system type is xfs.
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https://bugs.launchpad.net/bugs/1755999
Title:
Reproducible
Hi Marcelo, it works without -cpu host
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https://bugs.launchpad.net/bugs/1882624
Title:
nested kvm doesn't work
Status in linux-azure package in Ubuntu:
New
Bug
The issue still exist on 4.15.0-1092-azure, probably I just verify the
basic nested vm scenario against 4.15.0-1091-azure, will double check.
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Last time I did verification against gallery image, the default kernel version
is 4.4.0-148-generic.
And I tried below kernel, found the kernel linux-image-4.15.0-1042-azure is the
first one which we hit this bug, it is not specific for the esm kernel.
# Kernel Version/Package Result
0
** Summary changed:
- nested kvm doesn't not work
+ nested kvm doesn't work
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Title:
nested kvm doesn't work
Status in
Hi Marcelo, this issue is fixed in kernel version 4.15.0-1091-azure from
private-ppa canonical-kernel-esm.
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https://bugs.launchpad.net/bugs/1882624
Title:
nested kvm
Try HyperV command, you will see hv-kvp-daemon service exit with KVP:
read failed; error:9 Bad file descriptor
Disable-VMIntegrationService -Name "Key-Value Pair Exchange" -VMName
$VMName -ComputerName $hvServer
Kernel version -
11/21/2019 07:10:21 : [INFO ] Old kernel: 4.15.0-38-generic
Same thing happen in HyperV, when run apt-get install -yq linux-
azure/disco, it hung in some rate. Like upgrade 3 VMs, 1 VM hung.
VM configuration - 3584 memory, 2 Virtual processors
[ 485.023123] INFO: task mdadm:11824 blocked for more than 120 seconds.
[ 485.029485] Not tainted
** Changed in: linux-lts-utopic (Ubuntu Trusty)
Status: Fix Committed = Fix Released
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https://bugs.launchpad.net/bugs/1405807
Title:
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