This bug was fixed in the package linux-kvm - 5.11.0-1007.7
---------------
linux-kvm (5.11.0-1007.7) hirsute; urgency=medium
* no memory hot-plugging in cloud-images (LP: #1925008)
- [Config] kvm: CONFIG_ACPI_HOTPLUG_MEMORY=y
[ Ubuntu: 5.11.0-17.18 ]
* Race between isotp_bind and isotp_setsockopt (LP: #1927409)
- SAUCE: Revert "can: isotp: add SF_BROADCAST support for functional
addressing"
* CVE-2021-3491
- io_uring: fix overflows checks in provide buffers
- SAUCE: proc: Avoid mixing integer types in mem_rw()
- SAUCE: io_uring: truncate lengths larger than MAX_RW_COUNT on provide
buffers
* CVE-2021-3490
- SAUCE: bpf: verifier: fix ALU32 bounds tracking with bitwise ops
* CVE-2021-3489
- SAUCE: bpf: ringbuf: deny reserve of buffers larger than ringbuf
- SAUCE: bpf: prevent writable memory-mapping of read-only ringbuf pages
-- Stefan Bader <stefan.ba...@canonical.com> Thu, 06 May 2021 21:28:51
+0200
** Changed in: linux-kvm (Ubuntu Hirsute)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-3489
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-3490
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-3491
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https://bugs.launchpad.net/bugs/1925008
Title:
no memory hot-plugging in cloud-images
Status in cloud-images:
Invalid
Status in linux package in Ubuntu:
Fix Released
Status in linux-kvm package in Ubuntu:
In Progress
Status in linux source package in Focal:
Fix Released
Status in linux-kvm source package in Focal:
Fix Committed
Status in linux source package in Groovy:
Fix Released
Status in linux-kvm source package in Groovy:
Fix Committed
Status in linux source package in Hirsute:
Fix Released
Status in linux-kvm source package in Hirsute:
Fix Released
Bug description:
SRU Justification
[Impact]
Memory hot-plugging is not working with public cloud-images. Error with dmesg
shows:
[ 184.544535] acpi PNP0C80:00: Enumeration failure
checking kernel configuration:
root@ubuntu:/boot# uname -r
5.4.0-1038-kvm
root@ubuntu:/boot# grep CONFIG_ACPI_HOTPLUG_MEMORY config-5.4.0-1038-kvm
# CONFIG_ACPI_HOTPLUG_MEMORY is not set
Obviously the necessary kernel configuration for ACPI memory hotplug
is missing.
root@ubuntu:~# cat /etc/cloud/build.info
build_name: server
serial: 20210415
---
ProblemType: Bug
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code
2: ls: cannot access '/dev/snd/': No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: N/A
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
Lsusb-t: Error: command ['lsusb', '-t'] failed with exit code 1:
/sys/bus/usb/devices: No such file or directory
Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-1038-kvm
root=PARTUUID=a204284f-e3de-498d-a306-c4e7f6b62831 ro console=tty1
console=ttyS0 panic=-1
ProcVersionSignature: Ubuntu 5.4.0-1038.39-kvm 5.4.101
RelatedPackageVersions:
linux-restricted-modules-5.4.0-1038-kvm N/A
linux-backports-modules-5.4.0-1038-kvm N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
Tags: focal uec-images
Uname: Linux 5.4.0-1038-kvm x86_64
UnreportableReason: This report is about a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: False
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: 1.12.0-1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-2.7
dmi.modalias:
dmi:bvnSeaBIOS:bvr1.12.0-1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-2.7
dmi.sys.vendor: QEMU
[Test Plan]
Boot a kernel with CONFIG_ACPI_HOTPLUG_MEMORY enabled. Check that
requested memory has been added.
[Where problems could occur]
Adding memory could fail, or cause other configurations issues.
Regressions seem unlikely since this config option is enabled in all
cloud kernels except linux-azure.
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