Public bug reported:
I have got a HP HP ZBook Studio G5 laptop.
After updating BIOS from "BIOS Q71 Ver. 01.15.00 12/28/2020" to version
"BIOS Q71 Ver. 01.16.00 04/22/2021" most of the memory got unavailable
in Linux. The system has 16 GiB of memory, but now free -h shows only
total of 1.5 GiB. In Windows all memory seems available. No other
indication of the problem in /proc/meminfo and /proc/iomem (will attach)
is shown except that the total memory is 1.5 GiB. No large area is shown
as reserved in /proc/iomem. But there is now an error message in dmesg
that didn't use to be there: "kernel: efi: memattr: Failed to map EFI
Memory Attributes table @ 0x72f69018". Also that EFI MEMATTR address
seems to have changed after the BIOS update. I will also attach an
earlier dmesg prior to update and a one after the update, since I
updated the BIOS two weeks ago, and after that the kernel has also got
updated.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-84-generic 5.4.0-84.94
ProcVersionSignature: Ubuntu 5.4.0-84.94-generic 5.4.133
Uname: Linux 5.4.0-84-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.20
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jttoivon 2725 F.... pipewire-media-
/dev/snd/controlC0: jttoivon 2725 F.... pipewire-media-
/dev/snd/seq: jttoivon 2724 F.... pipewire
CasperMD5CheckResult: skip
CurrentDesktop: X-Cinnamon
Date: Sat Sep 18 08:53:18 2021
InstallationDate: Installed on 2020-01-23 (603 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: HP HP ZBook Studio G5
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-84-generic
root=UUID=c6b19f0f-68ff-4d8c-985a-c3ed88345389 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.4.0-84-generic N/A
linux-backports-modules-5.4.0-84-generic N/A
linux-firmware 1.187.16
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/22/2021
dmi.bios.vendor: HP
dmi.bios.version: Q71 Ver. 01.16.00
dmi.board.name: 8427
dmi.board.vendor: HP
dmi.board.version: KBC Version 16.4C.00
dmi.chassis.asset.tag: 5CD9495R4G
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrQ71Ver.01.16.00:bd04/22/2021:svnHP:pnHPZBookStudioG5:pvr:rvnHP:rn8427:rvrKBCVersion16.4C.00:cvnHP:ct10:cvr:
dmi.product.family: 103C_5336AN HP ZBook Studio
dmi.product.name: HP ZBook Studio G5
dmi.product.sku: 2ZC51EA#AK8
dmi.sys.vendor: HP
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal third-party-packages
** Attachment added: "/proc/iomem"
https://bugs.launchpad.net/bugs/1944019/+attachment/5526094/+files/iomem.txt
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https://bugs.launchpad.net/bugs/1944019
Title:
Most of the computer's memory rendered unavailable in Linux after
updating BIOS
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