Public bug reported:
In eoan on a 5.3 kernel, have noticed a few incidents of the system
becoming sluggish/unresponsive, which appears to be caused by low
available memory. top is reporting 13 of 16G are "used", but adding up
the memory reported by top sorted by memory usage appears like it should
be closer to 3-4G "used".
Attaching two top screenshots, one shows 3.3G used and system behaving
well, the other shows 14G used and system lagging. In both cases,
approximately the same programs are being run taking up approximately
the same amount of resident memory, so not sure where all the memory
usage is coming from.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-10-generic 5.3.0-10.11
ProcVersionSignature: Ubuntu 5.3.0-10.11-generic 5.3.0-rc8
Uname: Linux 5.3.0-10-generic x86_64
ApportVersion: 2.20.11-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jbarnett 5046 F.... pulseaudio
CurrentDesktop: GNOME
Date: Sun Sep 22 21:26:02 2019
InstallationDate: Installed on 2019-08-17 (37 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190305.1)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0489:e0a2 Foxconn / Hon Hai
Bus 001 Device 004: ID 27c6:5395 HTMicroelectronics Goodix Fingerprint Device
Bus 001 Device 002: ID 0bda:58f4 Realtek Semiconductor Corp.
Integrated_Webcam_HD
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. XPS 15 9575
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-10-generic
root=UUID=83cade14-7628-437d-8517-36ad82f00d20 ro quiet splash
usbcore.dyndbg=+p vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.3.0-10-generic N/A
linux-backports-modules-5.3.0-10-generic N/A
linux-firmware 1.182
SourcePackage: linux
UpgradeStatus: Upgraded to eoan on 2019-09-18 (4 days ago)
dmi.bios.date: 10/10/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.0
dmi.board.name: 0N338G
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.2.0:bd10/10/2018:svnDellInc.:pnXPS159575:pvr:rvnDellInc.:rn0N338G:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9575
dmi.product.sku: 080D
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug eoan wayland-session
** Attachment added: ""good" memory usage"
https://bugs.launchpad.net/bugs/1844962/+attachment/5290516/+files/Screenshot%20from%202019-09-20%2007-01-42.png
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1844962
Title:
apparent memory usage regression - not getting freed?
Status in linux package in Ubuntu:
New
Bug description:
In eoan on a 5.3 kernel, have noticed a few incidents of the system
becoming sluggish/unresponsive, which appears to be caused by low
available memory. top is reporting 13 of 16G are "used", but adding
up the memory reported by top sorted by memory usage appears like it
should be closer to 3-4G "used".
Attaching two top screenshots, one shows 3.3G used and system behaving
well, the other shows 14G used and system lagging. In both cases,
approximately the same programs are being run taking up approximately
the same amount of resident memory, so not sure where all the memory
usage is coming from.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-10-generic 5.3.0-10.11
ProcVersionSignature: Ubuntu 5.3.0-10.11-generic 5.3.0-rc8
Uname: Linux 5.3.0-10-generic x86_64
ApportVersion: 2.20.11-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jbarnett 5046 F.... pulseaudio
CurrentDesktop: GNOME
Date: Sun Sep 22 21:26:02 2019
InstallationDate: Installed on 2019-08-17 (37 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190305.1)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0489:e0a2 Foxconn / Hon Hai
Bus 001 Device 004: ID 27c6:5395 HTMicroelectronics Goodix Fingerprint
Device
Bus 001 Device 002: ID 0bda:58f4 Realtek Semiconductor Corp.
Integrated_Webcam_HD
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. XPS 15 9575
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-10-generic
root=UUID=83cade14-7628-437d-8517-36ad82f00d20 ro quiet splash
usbcore.dyndbg=+p vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.3.0-10-generic N/A
linux-backports-modules-5.3.0-10-generic N/A
linux-firmware 1.182
SourcePackage: linux
UpgradeStatus: Upgraded to eoan on 2019-09-18 (4 days ago)
dmi.bios.date: 10/10/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.0
dmi.board.name: 0N338G
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.2.0:bd10/10/2018:svnDellInc.:pnXPS159575:pvr:rvnDellInc.:rn0N338G:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9575
dmi.product.sku: 080D
dmi.sys.vendor: Dell Inc.
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