Public bug reported:
Dell Inspiron 3847 Desktop running Ubuntu 18.04.1 LTS
kernel: 4.15.0-33-generic
Corrupted low memory messages logged in syslog
Can be reproduced with script:
#!/bin/bash
# log to syslog...
logger -st low_mem_corruption.sh "Checking for low memory corruption with
kernel $(uname -rv)..."
# this will cause syslog messages on affected kernels...
cat /proc/i8k
logger -st low_mem_corruption.sh "Please wait for 90 secs to ensure low memory
test has completed..."
# sleep for 1.5 mins - enough time for mem check every 60 secs...
sleep 90
logger -st low_mem_corruption.sh "Check for low memory corruption done! Was
anything logged in syslog?"
Kernels tested:
Kernel 4.15.0-29-generic - fine
Kernel 4.15.0-30-generic - fine
Kernel 4.15.0-30-generic - Never installed, do not know - did it exist?
Kernel 4.15.0-32-generic - Low Memory corruption!
Kernel 4.15.0-33-generic - Low Memory corruption!
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-33-generic 4.15.0-33.36
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: bossman 1316 F.... pulseaudio
/dev/snd/pcmC1D0p: bossman 1316 F...m pulseaudio
/dev/snd/controlC1: bossman 1316 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 28 16:56:01 2018
HibernationDevice: RESUME=UUID=1c065a24-2acf-43dc-bf3d-1382f3bbf0ac
InstallationDate: Installed on 2018-05-12 (108 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: Dell Inc. Inspiron 3847
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic
root=UUID=a5dec663-366e-4ecc-a17a-ce4219c54897 ro quiet loglevel=3 splash
RelatedPackageVersions:
linux-restricted-modules-4.15.0-33-generic N/A
linux-backports-modules-4.15.0-33-generic N/A
linux-firmware 1.173.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/10/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 088DT1
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA10:bd05/10/2018:svnDellInc.:pnInspiron3847:pvr:rvnDellInc.:rn088DT1:rvrA01:cvnDellInc.:ct3:cvr:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: Inspiron 3847
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1789519
Title:
Low Memory corruption logged in syslog
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